(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.autoprefixer = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
(function() {
  var add, backdropFilter, bckgrndImgOpts, boxdecorbreak, crispedges, cursorsGrab, cursorsNewer, decoration, devdaptation, elementFunction, feature, filterFunction, flexbox, fullscreen, gradients, grid, logicalProps, prefix, readOnly, resolution, result, sort, textAlignLast, textSizeAdjust, textSpacing, transforms3d, userSelectNone, writingMode,
    slice = [].slice;

  sort = function(array) {
    return array.sort(function(a, b) {
      var d;
      a = a.split(' ');
      b = b.split(' ');
      if (a[0] > b[0]) {
        return 1;
      } else if (a[0] < b[0]) {
        return -1;
      } else {
        d = parseFloat(a[1]) - parseFloat(b[1]);
        if (d > 0) {
          return 1;
        } else if (d < 0) {
          return -1;
        } else {
          return 0;
        }
      }
    });
  };

  feature = function(data, opts, callback) {
    var browser, match, need, ref, ref1, support, version, versions;
    if (!callback) {
      ref = [opts, {}], callback = ref[0], opts = ref[1];
    }
    match = opts.match || /\sx($|\s)/;
    need = [];
    ref1 = data.stats;
    for (browser in ref1) {
      versions = ref1[browser];
      for (version in versions) {
        support = versions[version];
        if (support.match(match)) {
          need.push(browser + ' ' + version);
        }
      }
    }
    return callback(sort(need));
  };

  result = {};

  prefix = function() {
    var data, i, j, k, len, name, names, results;
    names = 2 <= arguments.length ? slice.call(arguments, 0, j = arguments.length - 1) : (j = 0, []), data = arguments[j++];
    results = [];
    for (k = 0, len = names.length; k < len; k++) {
      name = names[k];
      result[name] = {};
      results.push((function() {
        var results1;
        results1 = [];
        for (i in data) {
          results1.push(result[name][i] = data[i]);
        }
        return results1;
      })());
    }
    return results;
  };

  add = function() {
    var data, j, k, len, name, names, results;
    names = 2 <= arguments.length ? slice.call(arguments, 0, j = arguments.length - 1) : (j = 0, []), data = arguments[j++];
    results = [];
    for (k = 0, len = names.length; k < len; k++) {
      name = names[k];
      results.push(result[name].browsers = sort(result[name].browsers.concat(data.browsers)));
    }
    return results;
  };

  module.exports = result;

  feature(require('caniuse-db/features-json/border-radius.json'), function(browsers) {
    return prefix('border-radius', 'border-top-left-radius', 'border-top-right-radius', 'border-bottom-right-radius', 'border-bottom-left-radius', {
      mistakes: ['-khtml-', '-ms-', '-o-'],
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/css-boxshadow.json'), function(browsers) {
    return prefix('box-shadow', {
      mistakes: ['-khtml-'],
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/css-animation.json'), function(browsers) {
    return prefix('animation', 'animation-name', 'animation-duration', 'animation-delay', 'animation-direction', 'animation-fill-mode', 'animation-iteration-count', 'animation-play-state', 'animation-timing-function', '@keyframes', {
      mistakes: ['-khtml-', '-ms-'],
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/css-transitions.json'), function(browsers) {
    return prefix('transition', 'transition-property', 'transition-duration', 'transition-delay', 'transition-timing-function', {
      mistakes: ['-khtml-', '-ms-'],
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/transforms2d.json'), function(browsers) {
    return prefix('transform', 'transform-origin', {
      browsers: browsers
    });
  });

  transforms3d = require('caniuse-db/features-json/transforms3d.json');

  feature(transforms3d, function(browsers) {
    prefix('perspective', 'perspective-origin', {
      browsers: browsers
    });
    return prefix('transform-style', {
      mistakes: ['-ms-', '-o-'],
      browsers: browsers
    });
  });

  feature(transforms3d, {
    match: /y\sx|y\s#2/
  }, function(browsers) {
    return prefix('backface-visibility', {
      mistakes: ['-ms-', '-o-'],
      browsers: browsers
    });
  });

  gradients = require('caniuse-db/features-json/css-gradients.json');

  feature(gradients, {
    match: /y\sx/
  }, function(browsers) {
    return prefix('linear-gradient', 'repeating-linear-gradient', 'radial-gradient', 'repeating-radial-gradient', {
      props: ['background', 'background-image', 'border-image', 'mask', 'list-style', 'list-style-image', 'content', 'mask-image'],
      mistakes: ['-ms-'],
      browsers: browsers
    });
  });

  feature(gradients, {
    match: /a\sx/
  }, function(browsers) {
    browsers = browsers.map(function(i) {
      if (/op/.test(i)) {
        return i;
      } else {
        return i + " old";
      }
    });
    return add('linear-gradient', 'repeating-linear-gradient', 'radial-gradient', 'repeating-radial-gradient', {
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/css3-boxsizing.json'), function(browsers) {
    return prefix('box-sizing', {
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/css-filters.json'), function(browsers) {
    return prefix('filter', {
      browsers: browsers
    });
  });

  filterFunction = require('caniuse-db/features-json/css-filter-function.json');

  feature(filterFunction, function(browsers) {
    return prefix('filter-function', {
      props: ['background', 'background-image', 'border-image', 'mask', 'list-style', 'list-style-image', 'content', 'mask-image'],
      browsers: browsers
    });
  });

  backdropFilter = require('caniuse-db/features-json/css-backdrop-filter.json');

  feature(backdropFilter, function(browsers) {
    return prefix('backdrop-filter', {
      browsers: browsers
    });
  });

  elementFunction = require('caniuse-db/features-json/css-element-function.json');

  feature(elementFunction, function(browsers) {
    return prefix('element', {
      props: ['background', 'background-image', 'border-image', 'mask', 'list-style', 'list-style-image', 'content', 'mask-image'],
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/multicolumn.json'), function(browsers) {
    prefix('columns', 'column-width', 'column-gap', 'column-rule', 'column-rule-color', 'column-rule-width', {
      browsers: browsers
    });
    return prefix('column-count', 'column-rule-style', 'column-span', 'column-fill', 'break-before', 'break-after', 'break-inside', {
      browsers: browsers
    });
  });

  userSelectNone = require('caniuse-db/features-json/user-select-none.json');

  feature(userSelectNone, function(browsers) {
    return prefix('user-select', {
      mistakes: ['-khtml-'],
      browsers: browsers
    });
  });

  flexbox = require('caniuse-db/features-json/flexbox.json');

  feature(flexbox, {
    match: /a\sx/
  }, function(browsers) {
    browsers = browsers.map(function(i) {
      if (/ie|firefox/.test(i)) {
        return i;
      } else {
        return i + " 2009";
      }
    });
    prefix('display-flex', 'inline-flex', {
      props: ['display'],
      browsers: browsers
    });
    prefix('flex', 'flex-grow', 'flex-shrink', 'flex-basis', {
      browsers: browsers
    });
    return prefix('flex-direction', 'flex-wrap', 'flex-flow', 'justify-content', 'order', 'align-items', 'align-self', 'align-content', {
      browsers: browsers
    });
  });

  feature(flexbox, {
    match: /y\sx/
  }, function(browsers) {
    add('display-flex', 'inline-flex', {
      browsers: browsers
    });
    add('flex', 'flex-grow', 'flex-shrink', 'flex-basis', {
      browsers: browsers
    });
    return add('flex-direction', 'flex-wrap', 'flex-flow', 'justify-content', 'order', 'align-items', 'align-self', 'align-content', {
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/calc.json'), function(browsers) {
    return prefix('calc', {
      props: ['*'],
      browsers: browsers
    });
  });

  bckgrndImgOpts = require('caniuse-db/features-json/background-img-opts.json');

  feature(bckgrndImgOpts, function(browsers) {
    return prefix('background-clip', 'background-origin', 'background-size', {
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/font-feature.json'), function(browsers) {
    return prefix('font-feature-settings', 'font-variant-ligatures', 'font-language-override', 'font-kerning', {
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/border-image.json'), function(browsers) {
    return prefix('border-image', {
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/css-selection.json'), function(browsers) {
    return prefix('::selection', {
      selector: true,
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/css-placeholder.json'), function(browsers) {
    browsers = browsers.map(function(i) {
      var name, ref, version;
      ref = i.split(' '), name = ref[0], version = ref[1];
      if (name === 'firefox' && parseFloat(version) <= 18) {
        return i + ' old';
      } else {
        return i;
      }
    });
    return prefix('::placeholder', {
      selector: true,
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/css-hyphens.json'), function(browsers) {
    return prefix('hyphens', {
      browsers: browsers
    });
  });

  fullscreen = require('caniuse-db/features-json/fullscreen.json');

  feature(fullscreen, function(browsers) {
    return prefix(':fullscreen', {
      selector: true,
      browsers: browsers
    });
  });

  feature(fullscreen, {
    match: /x(\s#2|$)/
  }, function(browsers) {
    return prefix('::backdrop', {
      selector: true,
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/css3-tabsize.json'), function(browsers) {
    return prefix('tab-size', {
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/intrinsic-width.json'), function(browsers) {
    return prefix('max-content', 'min-content', 'fit-content', 'fill', 'fill-available', {
      props: ['width', 'min-width', 'max-width', 'height', 'min-height', 'max-height', 'inline-size', 'min-inline-size', 'max-inline-size', 'block-size', 'min-block-size', 'max-block-size'],
      browsers: browsers
    });
  });

  cursorsNewer = require('caniuse-db/features-json/css3-cursors-newer.json');

  feature(cursorsNewer, function(browsers) {
    return prefix('zoom-in', 'zoom-out', {
      props: ['cursor'],
      browsers: browsers
    });
  });

  cursorsGrab = require('caniuse-db/features-json/css3-cursors-grab.json');

  feature(cursorsGrab, function(browsers) {
    return prefix('grab', 'grabbing', {
      props: ['cursor'],
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/css-sticky.json'), function(browsers) {
    return prefix('sticky', {
      props: ['position'],
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/pointer.json'), function(browsers) {
    return prefix('touch-action', {
      browsers: browsers
    });
  });

  decoration = require('caniuse-db/features-json/text-decoration.json');

  feature(decoration, function(browsers) {
    return prefix('text-decoration-style', 'text-decoration-color', 'text-decoration-line', {
      browsers: browsers
    });
  });

  feature(decoration, {
    match: /x.*#3/
  }, function(browsers) {
    return prefix('text-decoration-skip', {
      browsers: browsers
    });
  });

  textSizeAdjust = require('caniuse-db/features-json/text-size-adjust.json');

  feature(textSizeAdjust, function(browsers) {
    return prefix('text-size-adjust', {
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/css-masks.json'), function(browsers) {
    prefix('mask-clip', 'mask-composite', 'mask-image', 'mask-origin', 'mask-repeat', 'mask-border-repeat', 'mask-border-source', {
      browsers: browsers
    });
    return prefix('clip-path', 'mask', 'mask-position', 'mask-size', 'mask-border', 'mask-border-outset', 'mask-border-width', 'mask-border-slice', {
      browsers: browsers
    });
  });

  boxdecorbreak = require('caniuse-db/features-json/css-boxdecorationbreak.json');

  feature(boxdecorbreak, function(browsers) {
    return prefix('box-decoration-break', {
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/object-fit.json'), function(browsers) {
    return prefix('object-fit', 'object-position', {
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/css-shapes.json'), function(browsers) {
    return prefix('shape-margin', 'shape-outside', 'shape-image-threshold', {
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/text-overflow.json'), function(browsers) {
    return prefix('text-overflow', {
      browsers: browsers
    });
  });

  devdaptation = require('caniuse-db/features-json/css-deviceadaptation.json');

  feature(devdaptation, function(browsers) {
    return prefix('@viewport', {
      browsers: browsers
    });
  });

  resolution = require('caniuse-db/features-json/css-media-resolution.json');

  feature(resolution, {
    match: /( x($| )|a #3)/
  }, function(browsers) {
    return prefix('@resolution', {
      browsers: browsers
    });
  });

  textAlignLast = require('caniuse-db/features-json/css-text-align-last.json');

  feature(textAlignLast, function(browsers) {
    return prefix('text-align-last', {
      browsers: browsers
    });
  });

  crispedges = require('caniuse-db/features-json/css-crisp-edges.json');

  feature(crispedges, {
    match: /y x|a x #1/
  }, function(browsers) {
    return prefix('pixelated', {
      props: ['image-rendering'],
      browsers: browsers
    });
  });

  feature(crispedges, {
    match: /a x #2/
  }, function(browsers) {
    return prefix('image-rendering', {
      browsers: browsers
    });
  });

  logicalProps = require('caniuse-db/features-json/css-logical-props.json');

  feature(logicalProps, function(browsers) {
    return prefix('border-inline-start', 'border-inline-end', 'margin-inline-start', 'margin-inline-end', 'padding-inline-start', 'padding-inline-end', {
      browsers: browsers
    });
  });

  feature(logicalProps, {
    match: /x\s#2/
  }, function(browsers) {
    return prefix('border-block-start', 'border-block-end', 'margin-block-start', 'margin-block-end', 'padding-block-start', 'padding-block-end', {
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/css-appearance.json'), function(browsers) {
    return prefix('appearance', {
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/css-snappoints.json'), function(browsers) {
    return prefix('scroll-snap-type', 'scroll-snap-coordinate', 'scroll-snap-destination', 'scroll-snap-points-x', 'scroll-snap-points-y', {
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/css-regions.json'), function(browsers) {
    return prefix('flow-into', 'flow-from', 'region-fragment', {
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/css-image-set.json'), function(browsers) {
    return prefix('image-set', {
      props: ['background', 'background-image', 'border-image', 'mask', 'list-style', 'list-style-image', 'content', 'mask-image'],
      browsers: browsers
    });
  });

  writingMode = require('caniuse-db/features-json/css-writing-mode.json');

  feature(writingMode, {
    match: /a|x/
  }, function(browsers) {
    return prefix('writing-mode', {
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/css-cross-fade.json'), function(browsers) {
    return prefix('cross-fade', {
      props: ['background', 'background-image', 'border-image', 'mask', 'list-style', 'list-style-image', 'content', 'mask-image'],
      browsers: browsers
    });
  });

  readOnly = require('caniuse-db/features-json/css-read-only-write.json');

  feature(readOnly, function(browsers) {
    return prefix(':read-only', ':read-write', {
      selector: true,
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/text-emphasis.json'), function(browsers) {
    return prefix('text-emphasis', 'text-emphasis-position', 'text-emphasis-style', 'text-emphasis-color', {
      browsers: browsers
    });
  });

  grid = require('caniuse-db/features-json/css-grid.json');

  feature(grid, function(browsers) {
    prefix('display-grid', 'inline-grid', {
      props: ['display'],
      browsers: browsers
    });
    return prefix('grid-template-columns', 'grid-template-rows', 'grid-row-start', 'grid-column-start', 'grid-row-end', 'grid-column-end', 'grid-row', 'grid-column', {
      browsers: browsers
    });
  });

  feature(grid, {
    match: /a x/
  }, function(browsers) {
    return prefix('justify-items', 'grid-row-align', {
      browsers: browsers
    });
  });

  textSpacing = require('caniuse-db/features-json/css-text-spacing.json');

  feature(textSpacing, function(browsers) {
    return prefix('text-spacing', {
      browsers: browsers
    });
  });

  feature(require('caniuse-db/features-json/css-any-link.json'), function(browsers) {
    return prefix(':any-link', {
      selector: true,
      browsers: browsers
    });
  });

}).call(this);

},{"caniuse-db/features-json/background-img-opts.json":67,"caniuse-db/features-json/border-image.json":68,"caniuse-db/features-json/border-radius.json":69,"caniuse-db/features-json/calc.json":70,"caniuse-db/features-json/css-animation.json":71,"caniuse-db/features-json/css-any-link.json":72,"caniuse-db/features-json/css-appearance.json":73,"caniuse-db/features-json/css-backdrop-filter.json":74,"caniuse-db/features-json/css-boxdecorationbreak.json":75,"caniuse-db/features-json/css-boxshadow.json":76,"caniuse-db/features-json/css-crisp-edges.json":77,"caniuse-db/features-json/css-cross-fade.json":78,"caniuse-db/features-json/css-deviceadaptation.json":79,"caniuse-db/features-json/css-element-function.json":80,"caniuse-db/features-json/css-filter-function.json":82,"caniuse-db/features-json/css-filters.json":83,"caniuse-db/features-json/css-gradients.json":84,"caniuse-db/features-json/css-grid.json":85,"caniuse-db/features-json/css-hyphens.json":86,"caniuse-db/features-json/css-image-set.json":87,"caniuse-db/features-json/css-logical-props.json":88,"caniuse-db/features-json/css-masks.json":89,"caniuse-db/features-json/css-media-resolution.json":90,"caniuse-db/features-json/css-placeholder.json":91,"caniuse-db/features-json/css-read-only-write.json":92,"caniuse-db/features-json/css-regions.json":93,"caniuse-db/features-json/css-selection.json":94,"caniuse-db/features-json/css-shapes.json":95,"caniuse-db/features-json/css-snappoints.json":96,"caniuse-db/features-json/css-sticky.json":97,"caniuse-db/features-json/css-text-align-last.json":98,"caniuse-db/features-json/css-text-spacing.json":99,"caniuse-db/features-json/css-transitions.json":100,"caniuse-db/features-json/css-writing-mode.json":101,"caniuse-db/features-json/css3-boxsizing.json":102,"caniuse-db/features-json/css3-cursors-grab.json":103,"caniuse-db/features-json/css3-cursors-newer.json":104,"caniuse-db/features-json/css3-tabsize.json":105,"caniuse-db/features-json/flexbox.json":106,"caniuse-db/features-json/font-feature.json":107,"caniuse-db/features-json/fullscreen.json":108,"caniuse-db/features-json/intrinsic-width.json":109,"caniuse-db/features-json/multicolumn.json":110,"caniuse-db/features-json/object-fit.json":111,"caniuse-db/features-json/pointer.json":112,"caniuse-db/features-json/text-decoration.json":113,"caniuse-db/features-json/text-emphasis.json":114,"caniuse-db/features-json/text-overflow.json":115,"caniuse-db/features-json/text-size-adjust.json":116,"caniuse-db/features-json/transforms2d.json":117,"caniuse-db/features-json/transforms3d.json":118,"caniuse-db/features-json/user-select-none.json":119}],2:[function(require,module,exports){
(function() {
  var AtRule, Prefixer,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Prefixer = require('./prefixer');

  AtRule = (function(superClass) {
    extend(AtRule, superClass);

    function AtRule() {
      return AtRule.__super__.constructor.apply(this, arguments);
    }

    AtRule.prototype.add = function(rule, prefix) {
      var already, cloned, prefixed;
      prefixed = prefix + rule.name;
      already = rule.parent.some(function(i) {
        return i.name === prefixed && i.params === rule.params;
      });
      if (already) {
        return;
      }
      cloned = this.clone(rule, {
        name: prefixed
      });
      return rule.parent.insertBefore(rule, cloned);
    };

    AtRule.prototype.process = function(node) {
      var j, len, parent, prefix, ref, results;
      parent = this.parentPrefix(node);
      ref = this.prefixes;
      results = [];
      for (j = 0, len = ref.length; j < len; j++) {
        prefix = ref[j];
        if (parent && parent !== prefix) {
          continue;
        }
        results.push(this.add(node, prefix));
      }
      return results;
    };

    return AtRule;

  })(Prefixer);

  module.exports = AtRule;

}).call(this);

},{"./prefixer":51}],3:[function(require,module,exports){
(function() {
  var Browsers, Prefixes, browserslist, cache, isPlainObject, postcss, timeCapsule,
    slice = [].slice;

  browserslist = require('browserslist');

  postcss = require('postcss');

  Browsers = require('./browsers');

  Prefixes = require('./prefixes');

  isPlainObject = function(obj) {
    return Object.prototype.toString.apply(obj) === '[object Object]';
  };

  cache = {};

  timeCapsule = function(result, prefixes) {
    if (prefixes.browsers.selected.length === 0) {
      return;
    }
    if (prefixes.add.selectors.length > 0) {
      return;
    }
    if (Object.keys(prefixes.add).length > 2) {
      return;
    }
    return result.warn('Greetings, space traveller. ' + 'We are in the golden age of prefix-less CSS, ' + 'where Autoprefixer is no longer needed for your stylesheet.');
  };

  module.exports = postcss.plugin('autoprefixer', function() {
    var loadPrefixes, options, plugin, reqs;
    reqs = 1 <= arguments.length ? slice.call(arguments, 0) : [];
    if (reqs.length === 1 && isPlainObject(reqs[0])) {
      options = reqs[0];
      reqs = void 0;
    } else if (reqs.length === 0 || (reqs.length === 1 && (reqs[0] == null))) {
      reqs = void 0;
    } else if (reqs.length <= 2 && (reqs[0] instanceof Array || (reqs[0] == null))) {
      options = reqs[1];
      reqs = reqs[0];
    } else if (typeof reqs[reqs.length - 1] === 'object') {
      options = reqs.pop();
    }
    options || (options = {});
    if (options.browsers != null) {
      reqs = options.browsers;
    }
    loadPrefixes = function(opts) {
      var browsers, key, stats;
      stats = options.stats;
      browsers = new Browsers(module.exports.data.browsers, reqs, opts, stats);
      key = browsers.selected.join(', ') + JSON.stringify(options);
      return cache[key] || (cache[key] = new Prefixes(module.exports.data.prefixes, browsers, options));
    };
    plugin = function(css, result) {
      var prefixes, ref;
      prefixes = loadPrefixes({
        from: (ref = css.source) != null ? ref.input.file : void 0
      });
      timeCapsule(result, prefixes);
      if (options.remove !== false) {
        prefixes.processor.remove(css);
      }
      if (options.add !== false) {
        return prefixes.processor.add(css, result);
      }
    };
    plugin.options = options;
    plugin.info = function(opts) {
      return require('./info')(loadPrefixes(opts));
    };
    return plugin;
  });

  module.exports.data = {
    browsers: require('caniuse-db/data.json').agents,
    prefixes: require('../data/prefixes')
  };

  module.exports.defaults = browserslist.defaults;

  module.exports.info = function() {
    return module.exports().info();
  };

}).call(this);

},{"../data/prefixes":1,"./browsers":5,"./info":48,"./prefixes":52,"browserslist":64,"caniuse-db/data.json":66,"postcss":147}],4:[function(require,module,exports){
(function() {
  var brackets, last;

  last = function(array) {
    return array[array.length - 1];
  };

  brackets = {
    parse: function(str) {
      var current, j, len, stack, sym;
      current = [''];
      stack = [current];
      for (j = 0, len = str.length; j < len; j++) {
        sym = str[j];
        if (sym === '(') {
          current = [''];
          last(stack).push(current);
          stack.push(current);
        } else if (sym === ')') {
          stack.pop();
          current = last(stack);
          current.push('');
        } else {
          current[current.length - 1] += sym;
        }
      }
      return stack[0];
    },
    stringify: function(ast) {
      var i, j, len, result;
      result = '';
      for (j = 0, len = ast.length; j < len; j++) {
        i = ast[j];
        if (typeof i === 'object') {
          result += '(' + brackets.stringify(i) + ')';
        } else {
          result += i;
        }
      }
      return result;
    }
  };

  module.exports = brackets;

}).call(this);

},{}],5:[function(require,module,exports){
(function() {
  var Browsers, browserslist, utils;

  browserslist = require('browserslist');

  utils = require('./utils');

  Browsers = (function() {
    Browsers.prefixes = function() {
      var data, i, name;
      if (this.prefixesCache) {
        return this.prefixesCache;
      }
      data = require('caniuse-db/data.json').agents;
      return this.prefixesCache = utils.uniq((function() {
        var results;
        results = [];
        for (name in data) {
          i = data[name];
          results.push("-" + i.prefix + "-");
        }
        return results;
      })()).sort(function(a, b) {
        return b.length - a.length;
      });
    };

    Browsers.withPrefix = function(value) {
      if (!this.prefixesRegexp) {
        this.prefixesRegexp = RegExp("" + (this.prefixes().join('|')));
      }
      return this.prefixesRegexp.test(value);
    };

    function Browsers(data1, requirements, options, stats) {
      this.data = data1;
      this.options = options;
      this.stats = stats;
      this.selected = this.parse(requirements);
    }

    Browsers.prototype.parse = function(requirements) {
      var ref;
      return browserslist(requirements, {
        path: (ref = this.options) != null ? ref.from : void 0,
        stats: this.stats
      });
    };

    Browsers.prototype.browsers = function(criteria) {
      var browser, data, ref, selected, versions;
      selected = [];
      ref = this.data;
      for (browser in ref) {
        data = ref[browser];
        versions = criteria(data).map(function(version) {
          return browser + " " + version;
        });
        selected = selected.concat(versions);
      }
      return selected;
    };

    Browsers.prototype.prefix = function(browser) {
      var data, name, prefix, ref, version;
      ref = browser.split(' '), name = ref[0], version = ref[1];
      data = this.data[name];
      if (data.prefix_exceptions) {
        prefix = data.prefix_exceptions[version];
      }
      prefix || (prefix = data.prefix);
      return '-' + prefix + '-';
    };

    Browsers.prototype.isSelected = function(browser) {
      return this.selected.indexOf(browser) !== -1;
    };

    return Browsers;

  })();

  module.exports = Browsers;

}).call(this);

},{"./utils":58,"browserslist":64,"caniuse-db/data.json":66}],6:[function(require,module,exports){
(function() {
  var Browsers, Declaration, Prefixer, utils, vendor,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Prefixer = require('./prefixer');

  Browsers = require('./browsers');

  vendor = require('postcss/lib/vendor');

  utils = require('./utils');

  Declaration = (function(superClass) {
    extend(Declaration, superClass);

    function Declaration() {
      return Declaration.__super__.constructor.apply(this, arguments);
    }

    Declaration.prototype.check = function(decl) {
      return true;
    };

    Declaration.prototype.prefixed = function(prop, prefix) {
      return prefix + prop;
    };

    Declaration.prototype.normalize = function(prop) {
      return prop;
    };

    Declaration.prototype.otherPrefixes = function(value, prefix) {
      var j, len, other, ref;
      ref = Browsers.prefixes();
      for (j = 0, len = ref.length; j < len; j++) {
        other = ref[j];
        if (other === prefix) {
          continue;
        }
        if (value.indexOf(other) !== -1) {
          return true;
        }
      }
      return false;
    };

    Declaration.prototype.set = function(decl, prefix) {
      decl.prop = this.prefixed(decl.prop, prefix);
      return decl;
    };

    Declaration.prototype.needCascade = function(decl) {
      return decl._autoprefixerCascade || (decl._autoprefixerCascade = this.all.options.cascade !== false && decl.raw('before').indexOf('\n') !== -1);
    };

    Declaration.prototype.maxPrefixed = function(prefixes, decl) {
      var j, len, max, prefix;
      if (decl._autoprefixerMax) {
        return decl._autoprefixerMax;
      }
      max = 0;
      for (j = 0, len = prefixes.length; j < len; j++) {
        prefix = prefixes[j];
        prefix = utils.removeNote(prefix);
        if (prefix.length > max) {
          max = prefix.length;
        }
      }
      return decl._autoprefixerMax = max;
    };

    Declaration.prototype.calcBefore = function(prefixes, decl, prefix) {
      var before, diff, i, j, max, ref;
      if (prefix == null) {
        prefix = '';
      }
      before = decl.raw('before');
      max = this.maxPrefixed(prefixes, decl);
      diff = max - utils.removeNote(prefix).length;
      for (i = j = 0, ref = diff; 0 <= ref ? j < ref : j > ref; i = 0 <= ref ? ++j : --j) {
        before += ' ';
      }
      return before;
    };

    Declaration.prototype.restoreBefore = function(decl) {
      var lines, min;
      lines = decl.raw('before').split("\n");
      min = lines[lines.length - 1];
      this.all.group(decl).up(function(prefixed) {
        var array, last;
        array = prefixed.raw('before').split("\n");
        last = array[array.length - 1];
        if (last.length < min.length) {
          return min = last;
        }
      });
      lines[lines.length - 1] = min;
      return decl.raws.before = lines.join("\n");
    };

    Declaration.prototype.insert = function(decl, prefix, prefixes) {
      var already, cloned;
      cloned = this.set(this.clone(decl), prefix);
      if (!cloned) {
        return;
      }
      already = decl.parent.some(function(i) {
        return i.prop === cloned.prop && i.value === cloned.value;
      });
      if (already) {
        return;
      }
      if (this.needCascade(decl)) {
        cloned.raws.before = this.calcBefore(prefixes, decl, prefix);
      }
      return decl.parent.insertBefore(decl, cloned);
    };

    Declaration.prototype.isAlready = function(decl, prefixed) {
      var already;
      already = this.all.group(decl).up(function(i) {
        return i.prop === prefixed;
      });
      already || (already = this.all.group(decl).down(function(i) {
        return i.prop === prefixed;
      }));
      return already;
    };

    Declaration.prototype.add = function(decl, prefix, prefixes) {
      var prefixed;
      prefixed = this.prefixed(decl.prop, prefix);
      if (this.isAlready(decl, prefixed) || this.otherPrefixes(decl.value, prefix)) {
        return;
      }
      return this.insert(decl, prefix, prefixes);
    };

    Declaration.prototype.process = function(decl) {
      var prefixes;
      if (this.needCascade(decl)) {
        prefixes = Declaration.__super__.process.apply(this, arguments);
        if (prefixes != null ? prefixes.length : void 0) {
          this.restoreBefore(decl);
          return decl.raws.before = this.calcBefore(prefixes, decl);
        }
      } else {
        return Declaration.__super__.process.apply(this, arguments);
      }
    };

    Declaration.prototype.old = function(prop, prefix) {
      return [this.prefixed(prop, prefix)];
    };

    return Declaration;

  })(Prefixer);

  module.exports = Declaration;

}).call(this);

},{"./browsers":5,"./prefixer":51,"./utils":58,"postcss/lib/vendor":157}],7:[function(require,module,exports){
(function() {
  var AlignContent, Declaration, flexSpec,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  flexSpec = require('./flex-spec');

  Declaration = require('../declaration');

  AlignContent = (function(superClass) {
    extend(AlignContent, superClass);

    function AlignContent() {
      return AlignContent.__super__.constructor.apply(this, arguments);
    }

    AlignContent.names = ['align-content', 'flex-line-pack'];

    AlignContent.oldValues = {
      'flex-end': 'end',
      'flex-start': 'start',
      'space-between': 'justify',
      'space-around': 'distribute'
    };

    AlignContent.prototype.prefixed = function(prop, prefix) {
      var ref, spec;
      ref = flexSpec(prefix), spec = ref[0], prefix = ref[1];
      if (spec === 2012) {
        return prefix + 'flex-line-pack';
      } else {
        return AlignContent.__super__.prefixed.apply(this, arguments);
      }
    };

    AlignContent.prototype.normalize = function(prop) {
      return 'align-content';
    };

    AlignContent.prototype.set = function(decl, prefix) {
      var spec;
      spec = flexSpec(prefix)[0];
      if (spec === 2012) {
        decl.value = AlignContent.oldValues[decl.value] || decl.value;
        return AlignContent.__super__.set.call(this, decl, prefix);
      } else if (spec === 'final') {
        return AlignContent.__super__.set.apply(this, arguments);
      }
    };

    return AlignContent;

  })(Declaration);

  module.exports = AlignContent;

}).call(this);

},{"../declaration":6,"./flex-spec":26}],8:[function(require,module,exports){
(function() {
  var AlignItems, Declaration, flexSpec,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  flexSpec = require('./flex-spec');

  Declaration = require('../declaration');

  AlignItems = (function(superClass) {
    extend(AlignItems, superClass);

    function AlignItems() {
      return AlignItems.__super__.constructor.apply(this, arguments);
    }

    AlignItems.names = ['align-items', 'flex-align', 'box-align'];

    AlignItems.oldValues = {
      'flex-end': 'end',
      'flex-start': 'start'
    };

    AlignItems.prototype.prefixed = function(prop, prefix) {
      var ref, spec;
      ref = flexSpec(prefix), spec = ref[0], prefix = ref[1];
      if (spec === 2009) {
        return prefix + 'box-align';
      } else if (spec === 2012) {
        return prefix + 'flex-align';
      } else {
        return AlignItems.__super__.prefixed.apply(this, arguments);
      }
    };

    AlignItems.prototype.normalize = function(prop) {
      return 'align-items';
    };

    AlignItems.prototype.set = function(decl, prefix) {
      var spec;
      spec = flexSpec(prefix)[0];
      if (spec === 2009 || spec === 2012) {
        decl.value = AlignItems.oldValues[decl.value] || decl.value;
        return AlignItems.__super__.set.call(this, decl, prefix);
      } else {
        return AlignItems.__super__.set.apply(this, arguments);
      }
    };

    return AlignItems;

  })(Declaration);

  module.exports = AlignItems;

}).call(this);

},{"../declaration":6,"./flex-spec":26}],9:[function(require,module,exports){
(function() {
  var AlignSelf, Declaration, flexSpec,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  flexSpec = require('./flex-spec');

  Declaration = require('../declaration');

  AlignSelf = (function(superClass) {
    extend(AlignSelf, superClass);

    function AlignSelf() {
      return AlignSelf.__super__.constructor.apply(this, arguments);
    }

    AlignSelf.names = ['align-self', 'flex-item-align'];

    AlignSelf.oldValues = {
      'flex-end': 'end',
      'flex-start': 'start'
    };

    AlignSelf.prototype.prefixed = function(prop, prefix) {
      var ref, spec;
      ref = flexSpec(prefix), spec = ref[0], prefix = ref[1];
      if (spec === 2012) {
        return prefix + 'flex-item-align';
      } else {
        return AlignSelf.__super__.prefixed.apply(this, arguments);
      }
    };

    AlignSelf.prototype.normalize = function(prop) {
      return 'align-self';
    };

    AlignSelf.prototype.set = function(decl, prefix) {
      var spec;
      spec = flexSpec(prefix)[0];
      if (spec === 2012) {
        decl.value = AlignSelf.oldValues[decl.value] || decl.value;
        return AlignSelf.__super__.set.call(this, decl, prefix);
      } else if (spec === 'final') {
        return AlignSelf.__super__.set.apply(this, arguments);
      }
    };

    return AlignSelf;

  })(Declaration);

  module.exports = AlignSelf;

}).call(this);

},{"../declaration":6,"./flex-spec":26}],10:[function(require,module,exports){
(function() {
  var BackgroundSize, Declaration,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Declaration = require('../declaration');

  BackgroundSize = (function(superClass) {
    extend(BackgroundSize, superClass);

    function BackgroundSize() {
      return BackgroundSize.__super__.constructor.apply(this, arguments);
    }

    BackgroundSize.names = ['background-size'];

    BackgroundSize.prototype.set = function(decl, prefix) {
      var value;
      value = decl.value.toLowerCase();
      if (prefix === '-webkit-' && value.indexOf(' ') === -1 && value !== 'contain' && value !== 'cover') {
        decl.value = decl.value + ' ' + decl.value;
      }
      return BackgroundSize.__super__.set.call(this, decl, prefix);
    };

    return BackgroundSize;

  })(Declaration);

  module.exports = BackgroundSize;

}).call(this);

},{"../declaration":6}],11:[function(require,module,exports){
(function() {
  var BlockLogical, Declaration,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Declaration = require('../declaration');

  BlockLogical = (function(superClass) {
    extend(BlockLogical, superClass);

    function BlockLogical() {
      return BlockLogical.__super__.constructor.apply(this, arguments);
    }

    BlockLogical.names = ['border-block-start', 'border-block-end', 'margin-block-start', 'margin-block-end', 'padding-block-start', 'padding-block-end', 'border-before', 'border-after', 'margin-before', 'margin-after', 'padding-before', 'padding-after'];

    BlockLogical.prototype.prefixed = function(prop, prefix) {
      return prefix + (prop.indexOf('-start') !== -1 ? prop.replace('-block-start', '-before') : prop.replace('-block-end', '-after'));
    };

    BlockLogical.prototype.normalize = function(prop) {
      if (prop.indexOf('-before') !== -1) {
        return prop.replace('-before', '-block-start');
      } else {
        return prop.replace('-after', '-block-end');
      }
    };

    return BlockLogical;

  })(Declaration);

  module.exports = BlockLogical;

}).call(this);

},{"../declaration":6}],12:[function(require,module,exports){
(function() {
  var BorderImage, Declaration,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Declaration = require('../declaration');

  BorderImage = (function(superClass) {
    extend(BorderImage, superClass);

    function BorderImage() {
      return BorderImage.__super__.constructor.apply(this, arguments);
    }

    BorderImage.names = ['border-image'];

    BorderImage.prototype.set = function(decl, prefix) {
      decl.value = decl.value.replace(/\s+fill(\s)/, '$1');
      return BorderImage.__super__.set.call(this, decl, prefix);
    };

    return BorderImage;

  })(Declaration);

  module.exports = BorderImage;

}).call(this);

},{"../declaration":6}],13:[function(require,module,exports){
(function() {
  var BorderRadius, Declaration,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Declaration = require('../declaration');

  BorderRadius = (function(superClass) {
    var hor, i, j, len, len1, mozilla, normal, ref, ref1, ver;

    extend(BorderRadius, superClass);

    function BorderRadius() {
      return BorderRadius.__super__.constructor.apply(this, arguments);
    }

    BorderRadius.names = ['border-radius'];

    BorderRadius.toMozilla = {};

    BorderRadius.toNormal = {};

    ref = ['top', 'bottom'];
    for (i = 0, len = ref.length; i < len; i++) {
      ver = ref[i];
      ref1 = ['left', 'right'];
      for (j = 0, len1 = ref1.length; j < len1; j++) {
        hor = ref1[j];
        normal = "border-" + ver + "-" + hor + "-radius";
        mozilla = "border-radius-" + ver + hor;
        BorderRadius.names.push(normal);
        BorderRadius.names.push(mozilla);
        BorderRadius.toMozilla[normal] = mozilla;
        BorderRadius.toNormal[mozilla] = normal;
      }
    }

    BorderRadius.prototype.prefixed = function(prop, prefix) {
      if (prefix === '-moz-') {
        return prefix + (BorderRadius.toMozilla[prop] || prop);
      } else {
        return BorderRadius.__super__.prefixed.apply(this, arguments);
      }
    };

    BorderRadius.prototype.normalize = function(prop) {
      return BorderRadius.toNormal[prop] || prop;
    };

    return BorderRadius;

  })(Declaration);

  module.exports = BorderRadius;

}).call(this);

},{"../declaration":6}],14:[function(require,module,exports){
(function() {
  var BreakProps, Declaration,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Declaration = require('../declaration');

  BreakProps = (function(superClass) {
    extend(BreakProps, superClass);

    function BreakProps() {
      return BreakProps.__super__.constructor.apply(this, arguments);
    }

    BreakProps.names = ['break-inside', 'page-break-inside', 'column-break-inside', 'break-before', 'page-break-before', 'column-break-before', 'break-after', 'page-break-after', 'column-break-after'];

    BreakProps.prototype.prefixed = function(prop, prefix) {
      if (prefix === '-webkit-') {
        return '-webkit-column-' + prop;
      } else if (prefix === '-moz-') {
        return 'page-' + prop;
      } else {
        return BreakProps.__super__.prefixed.apply(this, arguments);
      }
    };

    BreakProps.prototype.normalize = function(prop) {
      if (prop.indexOf('inside') !== -1) {
        return 'break-inside';
      } else if (prop.indexOf('before') !== -1) {
        return 'break-before';
      } else if (prop.indexOf('after') !== -1) {
        return 'break-after';
      }
    };

    BreakProps.prototype.set = function(decl, prefix) {
      var v;
      v = decl.value;
      if (decl.prop === 'break-inside' && v === 'avoid-column' || v === 'avoid-page') {
        decl.value = 'avoid';
      }
      return BreakProps.__super__.set.apply(this, arguments);
    };

    BreakProps.prototype.insert = function(decl, prefix, prefixes) {
      if (decl.prop !== 'break-inside') {
        return BreakProps.__super__.insert.apply(this, arguments);
      } else if (decl.value === 'avoid-region') {

      } else if (decl.value === 'avoid-page' && prefix === '-webkit-') {

      } else {
        return BreakProps.__super__.insert.apply(this, arguments);
      }
    };

    return BreakProps;

  })(Declaration);

  module.exports = BreakProps;

}).call(this);

},{"../declaration":6}],15:[function(require,module,exports){
(function() {
  var CrossFade, OldValue, Value, list, utils,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  OldValue = require('../old-value');

  Value = require('../value');

  utils = require('../utils');

  list = require('postcss/lib/list');

  CrossFade = (function(superClass) {
    extend(CrossFade, superClass);

    function CrossFade() {
      return CrossFade.__super__.constructor.apply(this, arguments);
    }

    CrossFade.names = ['cross-fade'];

    CrossFade.prototype.replace = function(string, prefix) {
      return list.space(string).map((function(_this) {
        return function(value) {
          var after, args, close, match;
          if (value.slice(0, +_this.name.length + 1 || 9e9) !== _this.name + '(') {
            return value;
          }
          close = value.lastIndexOf(')');
          after = value.slice(close + 1);
          args = value.slice(_this.name.length + 1, +(close - 1) + 1 || 9e9);
          if (prefix === '-webkit-') {
            match = args.match(/\d*.?\d+%?/);
            if (match) {
              args = args.slice(match[0].length).trim();
              args += ', ' + match[0];
            } else {
              args += ', 0.5';
            }
          }
          return prefix + _this.name + '(' + args + ')' + after;
        };
      })(this)).join(' ');
    };

    return CrossFade;

  })(Value);

  module.exports = CrossFade;

}).call(this);

},{"../old-value":50,"../utils":58,"../value":59,"postcss/lib/list":142}],16:[function(require,module,exports){
(function() {
  var DisplayFlex, OldValue, Value, flexSpec,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  flexSpec = require('./flex-spec');

  OldValue = require('../old-value');

  Value = require('../value');

  DisplayFlex = (function(superClass) {
    extend(DisplayFlex, superClass);

    DisplayFlex.names = ['display-flex', 'inline-flex'];

    function DisplayFlex(name, prefixes) {
      DisplayFlex.__super__.constructor.apply(this, arguments);
      if (name === 'display-flex') {
        this.name = 'flex';
      }
    }

    DisplayFlex.prototype.check = function(decl) {
      return decl.prop === 'display' && decl.value === this.name;
    };

    DisplayFlex.prototype.prefixed = function(prefix) {
      var ref, spec;
      ref = flexSpec(prefix), spec = ref[0], prefix = ref[1];
      return prefix + (spec === 2009 ? this.name === 'flex' ? 'box' : 'inline-box' : spec === 2012 ? this.name === 'flex' ? 'flexbox' : 'inline-flexbox' : spec === 'final' ? this.name : void 0);
    };

    DisplayFlex.prototype.replace = function(string, prefix) {
      return this.prefixed(prefix);
    };

    DisplayFlex.prototype.old = function(prefix) {
      var prefixed;
      prefixed = this.prefixed(prefix);
      if (prefixed) {
        return new OldValue(this.name, prefixed);
      }
    };

    return DisplayFlex;

  })(Value);

  module.exports = DisplayFlex;

}).call(this);

},{"../old-value":50,"../value":59,"./flex-spec":26}],17:[function(require,module,exports){
(function() {
  var DisplayGrid, OldValue, Value, flexSpec,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  flexSpec = require('./flex-spec');

  OldValue = require('../old-value');

  Value = require('../value');

  DisplayGrid = (function(superClass) {
    extend(DisplayGrid, superClass);

    DisplayGrid.names = ['display-grid', 'inline-grid'];

    function DisplayGrid(name, prefixes) {
      DisplayGrid.__super__.constructor.apply(this, arguments);
      if (name === 'display-grid') {
        this.name = 'grid';
      }
    }

    DisplayGrid.prototype.check = function(decl) {
      return decl.prop === 'display' && decl.value === this.name;
    };

    return DisplayGrid;

  })(Value);

  module.exports = DisplayGrid;

}).call(this);

},{"../old-value":50,"../value":59,"./flex-spec":26}],18:[function(require,module,exports){
(function() {
  var Fill, OldValue, Value,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  OldValue = require('../old-value');

  Value = require('../value');

  Fill = (function(superClass) {
    extend(Fill, superClass);

    function Fill() {
      return Fill.__super__.constructor.apply(this, arguments);
    }

    Fill.names = ['fill', 'fill-available'];

    Fill.prototype.replace = function(string, prefix) {
      if (prefix === '-moz-') {
        return string.replace(this.regexp(), '$1-moz-available$3');
      } else if (prefix === '-webkit-') {
        return string.replace(this.regexp(), '$1-webkit-fill-available$3');
      } else {
        return Fill.__super__.replace.apply(this, arguments);
      }
    };

    Fill.prototype.old = function(prefix) {
      if (prefix === '-moz-') {
        return new OldValue(this.name, '-moz-available');
      } else if (prefix === '-webkit-') {
        return new OldValue(this.name, '-webkit-fill-available');
      } else {
        return Fill.__super__.old.apply(this, arguments);
      }
    };

    return Fill;

  })(Value);

  module.exports = Fill;

}).call(this);

},{"../old-value":50,"../value":59}],19:[function(require,module,exports){
(function() {
  var FilterValue, OldFilterValue, OldValue, Value, utils,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  OldValue = require('../old-value');

  Value = require('../value');

  utils = require('../utils');

  OldFilterValue = (function(superClass) {
    extend(OldFilterValue, superClass);

    function OldFilterValue() {
      return OldFilterValue.__super__.constructor.apply(this, arguments);
    }

    OldFilterValue.prototype.clean = function(decl) {
      return decl.value = utils.editList(decl.value, (function(_this) {
        return function(props) {
          if (props.every(function(i) {
            return i.indexOf(_this.unprefixed) !== 0;
          })) {
            return props;
          }
          return props.filter(function(i) {
            return i.indexOf(_this.prefixed) === -1;
          });
        };
      })(this));
    };

    return OldFilterValue;

  })(OldValue);

  FilterValue = (function(superClass) {
    extend(FilterValue, superClass);

    FilterValue.names = ['filter', 'filter-function'];

    function FilterValue(name, prefixes) {
      FilterValue.__super__.constructor.apply(this, arguments);
      if (name === 'filter-function') {
        this.name = 'filter';
      }
    }

    FilterValue.prototype.replace = function(value, prefix) {
      if (prefix === '-webkit-' && value.indexOf('filter(') === -1) {
        if (value.indexOf('-webkit-filter') === -1) {
          return FilterValue.__super__.replace.apply(this, arguments) + ', ' + value;
        } else {
          return value;
        }
      } else {
        return FilterValue.__super__.replace.apply(this, arguments);
      }
    };

    FilterValue.prototype.old = function(prefix) {
      return new OldFilterValue(this.name, prefix + this.name);
    };

    return FilterValue;

  })(Value);

  module.exports = FilterValue;

}).call(this);

},{"../old-value":50,"../utils":58,"../value":59}],20:[function(require,module,exports){
(function() {
  var Declaration, Filter,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Declaration = require('../declaration');

  Filter = (function(superClass) {
    extend(Filter, superClass);

    function Filter() {
      return Filter.__super__.constructor.apply(this, arguments);
    }

    Filter.names = ['filter'];

    Filter.prototype.check = function(decl) {
      var v;
      v = decl.value;
      return v.toLowerCase().indexOf('alpha(') === -1 && v.indexOf('DXImageTransform.Microsoft') === -1 && v.indexOf('data:image/svg+xml') === -1;
    };

    return Filter;

  })(Declaration);

  module.exports = Filter;

}).call(this);

},{"../declaration":6}],21:[function(require,module,exports){
(function() {
  var Declaration, FlexBasis, flexSpec,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  flexSpec = require('./flex-spec');

  Declaration = require('../declaration');

  FlexBasis = (function(superClass) {
    extend(FlexBasis, superClass);

    function FlexBasis() {
      return FlexBasis.__super__.constructor.apply(this, arguments);
    }

    FlexBasis.names = ['flex-basis', 'flex-preferred-size'];

    FlexBasis.prototype.normalize = function() {
      return 'flex-basis';
    };

    FlexBasis.prototype.prefixed = function(prop, prefix) {
      var ref, spec;
      ref = flexSpec(prefix), spec = ref[0], prefix = ref[1];
      if (spec === 2012) {
        return prefix + 'flex-preferred-size';
      } else {
        return FlexBasis.__super__.prefixed.apply(this, arguments);
      }
    };

    FlexBasis.prototype.set = function(decl, prefix) {
      var ref, spec;
      ref = flexSpec(prefix), spec = ref[0], prefix = ref[1];
      if (spec === 2012 || spec === 'final') {
        return FlexBasis.__super__.set.apply(this, arguments);
      }
    };

    return FlexBasis;

  })(Declaration);

  module.exports = FlexBasis;

}).call(this);

},{"../declaration":6,"./flex-spec":26}],22:[function(require,module,exports){
(function() {
  var Declaration, FlexDirection, flexSpec,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  flexSpec = require('./flex-spec');

  Declaration = require('../declaration');

  FlexDirection = (function(superClass) {
    extend(FlexDirection, superClass);

    function FlexDirection() {
      return FlexDirection.__super__.constructor.apply(this, arguments);
    }

    FlexDirection.names = ['flex-direction', 'box-direction', 'box-orient'];

    FlexDirection.prototype.normalize = function(prop) {
      return 'flex-direction';
    };

    FlexDirection.prototype.insert = function(decl, prefix, prefixes) {
      var already, cloned, dir, orient, ref, spec, value;
      ref = flexSpec(prefix), spec = ref[0], prefix = ref[1];
      if (spec === 2009) {
        already = decl.parent.some(function(i) {
          return i.prop === prefix + 'box-orient' || i.prop === prefix + 'box-direction';
        });
        if (already) {
          return;
        }
        value = decl.value;
        orient = value.indexOf('row') !== -1 ? 'horizontal' : 'vertical';
        dir = value.indexOf('reverse') !== -1 ? 'reverse' : 'normal';
        cloned = this.clone(decl);
        cloned.prop = prefix + 'box-orient';
        cloned.value = orient;
        if (this.needCascade(decl)) {
          cloned.raws.before = this.calcBefore(prefixes, decl, prefix);
        }
        decl.parent.insertBefore(decl, cloned);
        cloned = this.clone(decl);
        cloned.prop = prefix + 'box-direction';
        cloned.value = dir;
        if (this.needCascade(decl)) {
          cloned.raws.before = this.calcBefore(prefixes, decl, prefix);
        }
        return decl.parent.insertBefore(decl, cloned);
      } else {
        return FlexDirection.__super__.insert.apply(this, arguments);
      }
    };

    FlexDirection.prototype.old = function(prop, prefix) {
      var ref, spec;
      ref = flexSpec(prefix), spec = ref[0], prefix = ref[1];
      if (spec === 2009) {
        return [prefix + 'box-orient', prefix + 'box-direction'];
      } else {
        return FlexDirection.__super__.old.apply(this, arguments);
      }
    };

    return FlexDirection;

  })(Declaration);

  module.exports = FlexDirection;

}).call(this);

},{"../declaration":6,"./flex-spec":26}],23:[function(require,module,exports){
(function() {
  var Declaration, FlexFlow, flexSpec,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  flexSpec = require('./flex-spec');

  Declaration = require('../declaration');

  FlexFlow = (function(superClass) {
    extend(FlexFlow, superClass);

    function FlexFlow() {
      return FlexFlow.__super__.constructor.apply(this, arguments);
    }

    FlexFlow.names = ['flex-flow'];

    FlexFlow.prototype.set = function(decl, prefix) {
      var ref, spec;
      ref = flexSpec(prefix), spec = ref[0], prefix = ref[1];
      if (spec === 2012) {
        return FlexFlow.__super__.set.apply(this, arguments);
      } else if (spec === 'final') {
        return FlexFlow.__super__.set.apply(this, arguments);
      }
    };

    return FlexFlow;

  })(Declaration);

  module.exports = FlexFlow;

}).call(this);

},{"../declaration":6,"./flex-spec":26}],24:[function(require,module,exports){
(function() {
  var Declaration, Flex, flexSpec,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  flexSpec = require('./flex-spec');

  Declaration = require('../declaration');

  Flex = (function(superClass) {
    extend(Flex, superClass);

    function Flex() {
      return Flex.__super__.constructor.apply(this, arguments);
    }

    Flex.names = ['flex-grow', 'flex-positive'];

    Flex.prototype.normalize = function() {
      return 'flex';
    };

    Flex.prototype.prefixed = function(prop, prefix) {
      var ref, spec;
      ref = flexSpec(prefix), spec = ref[0], prefix = ref[1];
      if (spec === 2009) {
        return prefix + 'box-flex';
      } else if (spec === 2012) {
        return prefix + 'flex-positive';
      } else {
        return Flex.__super__.prefixed.apply(this, arguments);
      }
    };

    return Flex;

  })(Declaration);

  module.exports = Flex;

}).call(this);

},{"../declaration":6,"./flex-spec":26}],25:[function(require,module,exports){
(function() {
  var Declaration, FlexShrink, flexSpec,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  flexSpec = require('./flex-spec');

  Declaration = require('../declaration');

  FlexShrink = (function(superClass) {
    extend(FlexShrink, superClass);

    function FlexShrink() {
      return FlexShrink.__super__.constructor.apply(this, arguments);
    }

    FlexShrink.names = ['flex-shrink', 'flex-negative'];

    FlexShrink.prototype.normalize = function() {
      return 'flex-shrink';
    };

    FlexShrink.prototype.prefixed = function(prop, prefix) {
      var ref, spec;
      ref = flexSpec(prefix), spec = ref[0], prefix = ref[1];
      if (spec === 2012) {
        return prefix + 'flex-negative';
      } else {
        return FlexShrink.__super__.prefixed.apply(this, arguments);
      }
    };

    FlexShrink.prototype.set = function(decl, prefix) {
      var ref, spec;
      ref = flexSpec(prefix), spec = ref[0], prefix = ref[1];
      if (spec === 2012 || spec === 'final') {
        return FlexShrink.__super__.set.apply(this, arguments);
      }
    };

    return FlexShrink;

  })(Declaration);

  module.exports = FlexShrink;

}).call(this);

},{"../declaration":6,"./flex-spec":26}],26:[function(require,module,exports){
(function() {
  module.exports = function(prefix) {
    var spec;
    spec = prefix === '-webkit- 2009' || prefix === '-moz-' ? 2009 : prefix === '-ms-' ? 2012 : prefix === '-webkit-' ? 'final' : void 0;
    if (prefix === '-webkit- 2009') {
      prefix = '-webkit-';
    }
    return [spec, prefix];
  };

}).call(this);

},{}],27:[function(require,module,exports){
(function() {
  var FlexValues, OldValue, Value,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  OldValue = require('../old-value');

  Value = require('../value');

  FlexValues = (function(superClass) {
    extend(FlexValues, superClass);

    function FlexValues() {
      return FlexValues.__super__.constructor.apply(this, arguments);
    }

    FlexValues.names = ['flex', 'flex-grow', 'flex-shrink', 'flex-basis'];

    FlexValues.prototype.prefixed = function(prefix) {
      return this.all.prefixed(this.name, prefix);
    };

    FlexValues.prototype.replace = function(string, prefix) {
      return string.replace(this.regexp(), '$1' + this.prefixed(prefix) + '$3');
    };

    FlexValues.prototype.old = function(prefix) {
      return new OldValue(this.name, this.prefixed(prefix));
    };

    return FlexValues;

  })(Value);

  module.exports = FlexValues;

}).call(this);

},{"../old-value":50,"../value":59}],28:[function(require,module,exports){
(function() {
  var Declaration, FlexWrap, flexSpec,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  flexSpec = require('./flex-spec');

  Declaration = require('../declaration');

  FlexWrap = (function(superClass) {
    extend(FlexWrap, superClass);

    function FlexWrap() {
      return FlexWrap.__super__.constructor.apply(this, arguments);
    }

    FlexWrap.names = ['flex-wrap'];

    FlexWrap.prototype.set = function(decl, prefix) {
      var spec;
      spec = flexSpec(prefix)[0];
      if (spec !== 2009) {
        return FlexWrap.__super__.set.apply(this, arguments);
      }
    };

    return FlexWrap;

  })(Declaration);

  module.exports = FlexWrap;

}).call(this);

},{"../declaration":6,"./flex-spec":26}],29:[function(require,module,exports){
(function() {
  var Declaration, Flex, flexSpec, list,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  flexSpec = require('./flex-spec');

  Declaration = require('../declaration');

  list = require('postcss/lib/list');

  Flex = (function(superClass) {
    extend(Flex, superClass);

    function Flex() {
      return Flex.__super__.constructor.apply(this, arguments);
    }

    Flex.names = ['flex', 'box-flex'];

    Flex.oldValues = {
      'auto': '1',
      'none': '0'
    };

    Flex.prototype.prefixed = function(prop, prefix) {
      var ref, spec;
      ref = flexSpec(prefix), spec = ref[0], prefix = ref[1];
      if (spec === 2009) {
        return prefix + 'box-flex';
      } else {
        return Flex.__super__.prefixed.apply(this, arguments);
      }
    };

    Flex.prototype.normalize = function() {
      return 'flex';
    };

    Flex.prototype.set = function(decl, prefix) {
      var spec;
      spec = flexSpec(prefix)[0];
      if (spec === 2009) {
        decl.value = list.space(decl.value)[0];
        decl.value = Flex.oldValues[decl.value] || decl.value;
        return Flex.__super__.set.call(this, decl, prefix);
      } else {
        return Flex.__super__.set.apply(this, arguments);
      }
    };

    return Flex;

  })(Declaration);

  module.exports = Flex;

}).call(this);

},{"../declaration":6,"./flex-spec":26,"postcss/lib/list":142}],30:[function(require,module,exports){
(function() {
  var Fullscreen, Selector,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Selector = require('../selector');

  Fullscreen = (function(superClass) {
    extend(Fullscreen, superClass);

    function Fullscreen() {
      return Fullscreen.__super__.constructor.apply(this, arguments);
    }

    Fullscreen.names = [':fullscreen'];

    Fullscreen.prototype.prefixed = function(prefix) {
      if ('-webkit-' === prefix) {
        return ':-webkit-full-screen';
      } else if ('-moz-' === prefix) {
        return ':-moz-full-screen';
      } else {
        return ":" + prefix + "fullscreen";
      }
    };

    return Fullscreen;

  })(Selector);

  module.exports = Fullscreen;

}).call(this);

},{"../selector":55}],31:[function(require,module,exports){
(function() {
  var Gradient, OldValue, Value, isDirection, list, parser, range, utils,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty,
    slice = [].slice;

  OldValue = require('../old-value');

  Value = require('../value');

  utils = require('../utils');

  parser = require('postcss-value-parser');

  range = require('normalize-range');

  list = require('postcss/lib/list');

  isDirection = /top|left|right|bottom/gi;

  Gradient = (function(superClass) {
    extend(Gradient, superClass);

    function Gradient() {
      return Gradient.__super__.constructor.apply(this, arguments);
    }

    Gradient.names = ['linear-gradient', 'repeating-linear-gradient', 'radial-gradient', 'repeating-radial-gradient'];

    Gradient.prototype.replace = function(string, prefix) {
      var ast, changes, j, len, node, ref;
      ast = parser(string);
      ref = ast.nodes;
      for (j = 0, len = ref.length; j < len; j++) {
        node = ref[j];
        if (node.type === 'function' && node.value === this.name) {
          node.nodes = this.newDirection(node.nodes);
          node.nodes = this.normalize(node.nodes);
          if (prefix === '-webkit- old') {
            changes = this.oldWebkit(node);
            if (!changes) {
              return;
            }
          } else {
            node.nodes = this.convertDirection(node.nodes);
            node.value = prefix + node.value;
          }
        }
      }
      return ast.toString();
    };

    Gradient.prototype.directions = {
      top: 'bottom',
      left: 'right',
      bottom: 'top',
      right: 'left'
    };

    Gradient.prototype.oldDirections = {
      'top': 'left bottom, left top',
      'left': 'right top, left top',
      'bottom': 'left top, left bottom',
      'right': 'left top, right top',
      'top right': 'left bottom, right top',
      'top left': 'right bottom, left top',
      'right top': 'left bottom, right top',
      'right bottom': 'left top, right bottom',
      'bottom right': 'left top, right bottom',
      'bottom left': 'right top, left bottom',
      'left top': 'right bottom, left top',
      'left bottom': 'right top, left bottom'
    };

    Gradient.prototype.replaceFirst = function() {
      var params, prefix, words;
      params = arguments[0], words = 2 <= arguments.length ? slice.call(arguments, 1) : [];
      prefix = words.map(function(i) {
        if (i === ' ') {
          return {
            type: 'space',
            value: i
          };
        } else {
          return {
            type: 'word',
            value: i
          };
        }
      });
      return prefix.concat(params.slice(1));
    };

    Gradient.prototype.normalizeUnit = function(str, full) {
      var deg, num;
      num = parseFloat(str);
      deg = (num / full) * 360;
      return deg + "deg";
    };

    Gradient.prototype.normalize = function(nodes) {
      var num;
      if (!nodes[0]) {
        return nodes;
      }
      if (/-?\d+(.\d+)?grad/.test(nodes[0].value)) {
        nodes[0].value = this.normalizeUnit(nodes[0].value, 400);
      } else if (/-?\d+(.\d+)?rad/.test(nodes[0].value)) {
        nodes[0].value = this.normalizeUnit(nodes[0].value, 2 * Math.PI);
      } else if (/-?\d+(.\d+)?turn/.test(nodes[0].value)) {
        nodes[0].value = this.normalizeUnit(nodes[0].value, 1);
      } else if (nodes[0].value.indexOf('deg') !== -1) {
        num = parseFloat(nodes[0].value);
        num = range.wrap(0, 360, num);
        nodes[0].value = num + "deg";
      }
      if (nodes[0].value === '0deg') {
        nodes = this.replaceFirst(nodes, 'to', ' ', 'top');
      } else if (nodes[0].value === '90deg') {
        nodes = this.replaceFirst(nodes, 'to', ' ', 'right');
      } else if (nodes[0].value === '180deg') {
        nodes = this.replaceFirst(nodes, 'to', ' ', 'bottom');
      } else if (nodes[0].value === '270deg') {
        nodes = this.replaceFirst(nodes, 'to', ' ', 'left');
      }
      return nodes;
    };

    Gradient.prototype.newDirection = function(params) {
      var i, j, ref;
      if (params[0].value === 'to') {
        return params;
      }
      if (!isDirection.test(params[0].value)) {
        return params;
      }
      params.unshift({
        type: 'word',
        value: 'to'
      }, {
        type: 'space',
        value: ' '
      });
      for (i = j = 2, ref = params.length; 2 <= ref ? j < ref : j > ref; i = 2 <= ref ? ++j : --j) {
        if (params[i].type === 'div') {
          break;
        }
        if (params[i].type === 'word') {
          params[i].value = this.revertDirection(params[i].value);
        }
      }
      return params;
    };

    Gradient.prototype.convertDirection = function(params) {
      if (params.length > 0) {
        if (params[0].value === 'to') {
          this.fixDirection(params);
        } else if (params[0].value.indexOf('deg') !== -1) {
          this.fixAngle(params);
        } else if (params[2].value === 'at') {
          this.fixRadial(params);
        }
      }
      return params;
    };

    Gradient.prototype.fixDirection = function(params) {
      var i, j, ref, results;
      params.splice(0, 2);
      results = [];
      for (i = j = 0, ref = params.length; 0 <= ref ? j < ref : j > ref; i = 0 <= ref ? ++j : --j) {
        if (params[i].type === 'div') {
          break;
        }
        if (params[i].type === 'word') {
          results.push(params[i].value = this.revertDirection(params[i].value));
        } else {
          results.push(void 0);
        }
      }
      return results;
    };

    Gradient.prototype.fixAngle = function(params) {
      var first;
      first = params[0].value;
      first = parseFloat(first);
      first = Math.abs(450 - first) % 360;
      first = this.roundFloat(first, 3);
      return params[0].value = first + "deg";
    };

    Gradient.prototype.fixRadial = function(params) {
      var first, i, j, ref, second;
      first = params[0];
      second = [];
      for (i = j = 4, ref = params.length; 4 <= ref ? j < ref : j > ref; i = 4 <= ref ? ++j : --j) {
        if (params[i].type === 'div') {
          break;
        } else {
          second.push(params[i]);
        }
      }
      return params.splice.apply(params, [0, i].concat(slice.call(second), [params[i + 2]], [first]));
    };

    Gradient.prototype.revertDirection = function(word) {
      return this.directions[word.toLowerCase()] || word;
    };

    Gradient.prototype.roundFloat = function(float, digits) {
      return parseFloat(float.toFixed(digits));
    };

    Gradient.prototype.oldWebkit = function(node) {
      var i, j, k, len, len1, nodes, param, params, string;
      nodes = node.nodes;
      string = parser.stringify(node.nodes);
      if (this.name !== 'linear-gradient') {
        return false;
      }
      if (nodes[0] && nodes[0].value.indexOf('deg') !== -1) {
        return false;
      }
      if (string.indexOf('px') !== -1) {
        return false;
      }
      if (string.indexOf('-corner') !== -1) {
        return false;
      }
      if (string.indexOf('-side') !== -1) {
        return false;
      }
      params = [[]];
      for (j = 0, len = nodes.length; j < len; j++) {
        i = nodes[j];
        params[params.length - 1].push(i);
        if (i.type === 'div' && i.value === ',') {
          params.push([]);
        }
      }
      this.oldDirection(params);
      this.colorStops(params);
      node.nodes = [];
      for (k = 0, len1 = params.length; k < len1; k++) {
        param = params[k];
        node.nodes = node.nodes.concat(param);
      }
      node.nodes.unshift({
        type: 'word',
        value: 'linear'
      }, this.cloneDiv(node.nodes));
      node.value = '-webkit-gradient';
      return true;
    };

    Gradient.prototype.oldDirection = function(params) {
      var div, j, len, node, old, ref, words;
      div = this.cloneDiv(params[0]);
      if (params[0][0].value !== 'to') {
        return params.unshift([
          {
            type: 'word',
            value: this.oldDirections.bottom
          }, div
        ]);
      } else {
        words = [];
        ref = params[0].slice(2);
        for (j = 0, len = ref.length; j < len; j++) {
          node = ref[j];
          if (node.type === 'word') {
            words.push(node.value.toLowerCase());
          }
        }
        words = words.join(' ');
        old = this.oldDirections[words] || words;
        return params[0] = [
          {
            type: 'word',
            value: old
          }, div
        ];
      }
    };

    Gradient.prototype.cloneDiv = function(params) {
      var i, j, len;
      for (j = 0, len = params.length; j < len; j++) {
        i = params[j];
        if (i.type === 'div' && i.value === ',') {
          return i;
        }
      }
      return {
        type: 'div',
        value: ',',
        after: ' '
      };
    };

    Gradient.prototype.colorStops = function(params) {
      var color, div, i, j, len, param, pos, results, stop;
      results = [];
      for (i = j = 0, len = params.length; j < len; i = ++j) {
        param = params[i];
        if (i === 0) {
          continue;
        }
        color = parser.stringify(param[0]);
        if (param[1] && param[1].type === 'word') {
          pos = param[1].value;
        } else if (param[2] && param[2].type === 'word') {
          pos = param[2].value;
        }
        stop = i === 1 && (!pos || pos === '0%') ? "from(" + color + ")" : i === params.length - 1 && (!pos || pos === '100%') ? "to(" + color + ")" : pos ? "color-stop(" + pos + ", " + color + ")" : "color-stop(" + color + ")";
        div = param[param.length - 1];
        params[i] = [
          {
            type: 'word',
            value: stop
          }
        ];
        if (div.type === 'div' && div.value === ',') {
          results.push(params[i].push(div));
        } else {
          results.push(void 0);
        }
      }
      return results;
    };

    Gradient.prototype.old = function(prefix) {
      var regexp, string, type;
      if (prefix === '-webkit-') {
        type = this.name === 'linear-gradient' ? 'linear' : 'radial';
        string = '-gradient';
        regexp = utils.regexp("-webkit-(" + type + "-gradient|gradient\\(\\s*" + type + ")", false);
        return new OldValue(this.name, prefix + this.name, string, regexp);
      } else {
        return Gradient.__super__.old.apply(this, arguments);
      }
    };

    Gradient.prototype.add = function(decl, prefix) {
      var p;
      p = decl.prop;
      if (p.indexOf('mask') !== -1) {
        if (prefix === '-webkit-' || prefix === '-webkit- old') {
          return Gradient.__super__.add.apply(this, arguments);
        }
      } else if (p === 'list-style' || p === 'list-style-image' || p === 'content') {
        if (prefix === '-webkit-' || prefix === '-webkit- old') {
          return Gradient.__super__.add.apply(this, arguments);
        }
      } else {
        return Gradient.__super__.add.apply(this, arguments);
      }
    };

    return Gradient;

  })(Value);

  module.exports = Gradient;

}).call(this);

},{"../old-value":50,"../utils":58,"../value":59,"normalize-range":127,"postcss-value-parser":130,"postcss/lib/list":142}],32:[function(require,module,exports){
(function() {
  var Declaration, GridEnd,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Declaration = require('../declaration');

  GridEnd = (function(superClass) {
    extend(GridEnd, superClass);

    function GridEnd() {
      return GridEnd.__super__.constructor.apply(this, arguments);
    }

    GridEnd.names = ['grid-row-end', 'grid-column-end', 'grid-row-span', 'grid-column-span'];

    GridEnd.prototype.check = function(decl) {
      return decl.value.indexOf('span') !== -1;
    };

    GridEnd.prototype.normalize = function(prop) {
      return prop.replace(/(-span|-end)/, '');
    };

    GridEnd.prototype.prefixed = function(prop, prefix) {
      if (prefix === '-ms-') {
        return prefix + prop.replace('-end', '-span');
      } else {
        return GridEnd.__super__.prefixed.call(this, prop, prefix);
      }
    };

    GridEnd.prototype.set = function(decl, prefix) {
      if (prefix === '-ms-') {
        decl.value = decl.value.replace(/span\s/i, '');
      }
      return GridEnd.__super__.set.call(this, decl, prefix);
    };

    return GridEnd;

  })(Declaration);

  module.exports = GridEnd;

}).call(this);

},{"../declaration":6}],33:[function(require,module,exports){
(function() {
  var Declaration, GridRowAlign,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Declaration = require('../declaration');

  GridRowAlign = (function(superClass) {
    extend(GridRowAlign, superClass);

    function GridRowAlign() {
      return GridRowAlign.__super__.constructor.apply(this, arguments);
    }

    GridRowAlign.names = ['grid-row-align'];

    GridRowAlign.prototype.check = function(decl) {
      return decl.value.indexOf('flex-') === -1 && decl.value !== 'baseline';
    };

    GridRowAlign.prototype.prefixed = function(prop, prefix) {
      return prefix + 'grid-row-align';
    };

    GridRowAlign.prototype.normalize = function(prop) {
      return 'align-self';
    };

    return GridRowAlign;

  })(Declaration);

  module.exports = GridRowAlign;

}).call(this);

},{"../declaration":6}],34:[function(require,module,exports){
(function() {
  var Declaration, GridStart,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Declaration = require('../declaration');

  GridStart = (function(superClass) {
    extend(GridStart, superClass);

    function GridStart() {
      return GridStart.__super__.constructor.apply(this, arguments);
    }

    GridStart.names = ['grid-row-start', 'grid-column-start', 'grid-row', 'grid-column'];

    GridStart.prototype.check = function(decl) {
      return decl.value.indexOf('/') === -1 || decl.value.indexOf('span') !== -1;
    };

    GridStart.prototype.normalize = function(prop) {
      return prop.replace('-start', '');
    };

    GridStart.prototype.prefixed = function(prop, prefix) {
      if (prefix === '-ms-') {
        return prefix + prop.replace('-start', '');
      } else {
        return GridStart.__super__.prefixed.call(this, prop, prefix);
      }
    };

    GridStart.prototype.insert = function(decl, prefix, prefixes) {
      var parts;
      parts = this.splitValue(decl, prefix);
      if (parts.length === 2) {
        decl.cloneBefore({
          prop: '-ms-' + decl.prop + '-span',
          value: parts[1]
        });
      }
      return GridStart.__super__.insert.call(this, decl, prefix, prefixes);
    };

    GridStart.prototype.set = function(decl, prefix) {
      var parts;
      parts = this.splitValue(decl, prefix);
      if (parts.length === 2) {
        decl.value = parts[0];
      }
      return GridStart.__super__.set.call(this, decl, prefix);
    };

    GridStart.prototype.splitValue = function(decl, prefix) {
      var parts;
      if (prefix === '-ms-' && decl.prop.indexOf('-start') === -1) {
        parts = decl.value.split(/\s*\/\s*span\s+/);
        if (parts.length === 2) {
          return parts;
        }
      }
      return false;
    };

    return GridStart;

  })(Declaration);

  module.exports = GridStart;

}).call(this);

},{"../declaration":6}],35:[function(require,module,exports){
(function() {
  var Declaration, GridTemplate, parser,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  parser = require('postcss-value-parser');

  Declaration = require('../declaration');

  GridTemplate = (function(superClass) {
    extend(GridTemplate, superClass);

    function GridTemplate() {
      return GridTemplate.__super__.constructor.apply(this, arguments);
    }

    GridTemplate.names = ['grid-template-rows', 'grid-template-columns', 'grid-rows', 'grid-columns'];

    GridTemplate.prototype.prefixed = function(prop, prefix) {
      if (prefix === '-ms-') {
        return prefix + prop.replace('template-', '');
      } else {
        return GridTemplate.__super__.prefixed.call(this, prop, prefix);
      }
    };

    GridTemplate.prototype.normalize = function(prop) {
      return prop.replace(/^grid-(rows|columns)/, 'grid-template-$1');
    };

    GridTemplate.prototype.walkRepeat = function(node) {
      var count, first, fixed, i, j, len, ref;
      fixed = [];
      ref = node.nodes;
      for (j = 0, len = ref.length; j < len; j++) {
        i = ref[j];
        if (i.nodes) {
          this.walkRepeat(i);
        }
        fixed.push(i);
        if (i.type === 'function' && i.value === 'repeat') {
          first = i.nodes.shift();
          if (first) {
            count = first.value;
            i.nodes.shift();
            i.value = '';
            fixed.push({
              type: 'word',
              value: "[" + count + "]"
            });
          }
        }
      }
      return node.nodes = fixed;
    };

    GridTemplate.prototype.changeRepeat = function(value) {
      var ast;
      ast = parser(value);
      this.walkRepeat(ast);
      return ast.toString();
    };

    GridTemplate.prototype.set = function(decl, prefix) {
      if (prefix === '-ms-' && decl.value.indexOf('repeat(') !== -1) {
        decl.value = this.changeRepeat(decl.value);
      }
      return GridTemplate.__super__.set.call(this, decl, prefix);
    };

    return GridTemplate;

  })(Declaration);

  module.exports = GridTemplate;

}).call(this);

},{"../declaration":6,"postcss-value-parser":130}],36:[function(require,module,exports){
(function() {
  var Declaration, ImageRendering,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Declaration = require('../declaration');

  ImageRendering = (function(superClass) {
    extend(ImageRendering, superClass);

    function ImageRendering() {
      return ImageRendering.__super__.constructor.apply(this, arguments);
    }

    ImageRendering.names = ['image-rendering', 'interpolation-mode'];

    ImageRendering.prototype.check = function(decl) {
      return decl.value === 'pixelated';
    };

    ImageRendering.prototype.prefixed = function(prop, prefix) {
      if (prefix === '-ms-') {
        return '-ms-interpolation-mode';
      } else {
        return ImageRendering.__super__.prefixed.apply(this, arguments);
      }
    };

    ImageRendering.prototype.set = function(decl, prefix) {
      if (prefix === '-ms-') {
        decl.prop = '-ms-interpolation-mode';
        decl.value = 'nearest-neighbor';
        return decl;
      } else {
        return ImageRendering.__super__.set.apply(this, arguments);
      }
    };

    ImageRendering.prototype.normalize = function(prop) {
      return 'image-rendering';
    };

    ImageRendering.prototype.process = function(node, result) {
      return ImageRendering.__super__.process.apply(this, arguments);
    };

    return ImageRendering;

  })(Declaration);

  module.exports = ImageRendering;

}).call(this);

},{"../declaration":6}],37:[function(require,module,exports){
(function() {
  var ImageSet, Value, list,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  list = require('postcss/lib/list');

  Value = require('../value');

  ImageSet = (function(superClass) {
    extend(ImageSet, superClass);

    function ImageSet() {
      return ImageSet.__super__.constructor.apply(this, arguments);
    }

    ImageSet.names = ['image-set'];

    ImageSet.prototype.replace = function(string, prefix) {
      if (prefix === '-webkit-') {
        return ImageSet.__super__.replace.apply(this, arguments).replace(/("[^"]+"|'[^']+')(\s+\d+\w)/gi, 'url($1)$2');
      } else {
        return ImageSet.__super__.replace.apply(this, arguments);
      }
    };

    return ImageSet;

  })(Value);

  module.exports = ImageSet;

}).call(this);

},{"../value":59,"postcss/lib/list":142}],38:[function(require,module,exports){
(function() {
  var Declaration, InlineLogical,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Declaration = require('../declaration');

  InlineLogical = (function(superClass) {
    extend(InlineLogical, superClass);

    function InlineLogical() {
      return InlineLogical.__super__.constructor.apply(this, arguments);
    }

    InlineLogical.names = ['border-inline-start', 'border-inline-end', 'margin-inline-start', 'margin-inline-end', 'padding-inline-start', 'padding-inline-end', 'border-start', 'border-end', 'margin-start', 'margin-end', 'padding-start', 'padding-end'];

    InlineLogical.prototype.prefixed = function(prop, prefix) {
      return prefix + prop.replace('-inline', '');
    };

    InlineLogical.prototype.normalize = function(prop) {
      return prop.replace(/(margin|padding|border)-(start|end)/, '$1-inline-$2');
    };

    return InlineLogical;

  })(Declaration);

  module.exports = InlineLogical;

}).call(this);

},{"../declaration":6}],39:[function(require,module,exports){
(function() {
  var Declaration, JustifyContent, flexSpec,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  flexSpec = require('./flex-spec');

  Declaration = require('../declaration');

  JustifyContent = (function(superClass) {
    extend(JustifyContent, superClass);

    function JustifyContent() {
      return JustifyContent.__super__.constructor.apply(this, arguments);
    }

    JustifyContent.names = ['justify-content', 'flex-pack', 'box-pack'];

    JustifyContent.oldValues = {
      'flex-end': 'end',
      'flex-start': 'start',
      'space-between': 'justify',
      'space-around': 'distribute'
    };

    JustifyContent.prototype.prefixed = function(prop, prefix) {
      var ref, spec;
      ref = flexSpec(prefix), spec = ref[0], prefix = ref[1];
      if (spec === 2009) {
        return prefix + 'box-pack';
      } else if (spec === 2012) {
        return prefix + 'flex-pack';
      } else {
        return JustifyContent.__super__.prefixed.apply(this, arguments);
      }
    };

    JustifyContent.prototype.normalize = function(prop) {
      return 'justify-content';
    };

    JustifyContent.prototype.set = function(decl, prefix) {
      var spec, value;
      spec = flexSpec(prefix)[0];
      if (spec === 2009 || spec === 2012) {
        value = JustifyContent.oldValues[decl.value] || decl.value;
        decl.value = value;
        if (spec !== 2009 || value !== 'distribute') {
          return JustifyContent.__super__.set.call(this, decl, prefix);
        }
      } else if (spec === 'final') {
        return JustifyContent.__super__.set.apply(this, arguments);
      }
    };

    return JustifyContent;

  })(Declaration);

  module.exports = JustifyContent;

}).call(this);

},{"../declaration":6,"./flex-spec":26}],40:[function(require,module,exports){
(function() {
  var Declaration, JustifyItems,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Declaration = require('../declaration');

  JustifyItems = (function(superClass) {
    extend(JustifyItems, superClass);

    function JustifyItems() {
      return JustifyItems.__super__.constructor.apply(this, arguments);
    }

    JustifyItems.names = ['justify-items', 'grid-column-align'];

    JustifyItems.prototype.prefixed = function(prop, prefix) {
      return prefix + (prefix === '-ms-' ? 'grid-column-align' : prop);
    };

    JustifyItems.prototype.normalize = function(prop) {
      return 'justify-items';
    };

    return JustifyItems;

  })(Declaration);

  module.exports = JustifyItems;

}).call(this);

},{"../declaration":6}],41:[function(require,module,exports){
(function() {
  var Declaration, MaskBorder,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Declaration = require('../declaration');

  MaskBorder = (function(superClass) {
    extend(MaskBorder, superClass);

    function MaskBorder() {
      return MaskBorder.__super__.constructor.apply(this, arguments);
    }

    MaskBorder.names = ['mask-border', 'mask-border-source', 'mask-border-slice', 'mask-border-width', 'mask-border-outset', 'mask-border-repeat', 'mask-box-image', 'mask-box-image-source', 'mask-box-image-slice', 'mask-box-image-width', 'mask-box-image-outset', 'mask-box-image-repeat'];

    MaskBorder.prototype.normalize = function() {
      return this.name.replace('box-image', 'border');
    };

    MaskBorder.prototype.prefixed = function(prop, prefix) {
      if (prefix === '-webkit-') {
        return MaskBorder.__super__.prefixed.apply(this, arguments).replace('border', 'box-image');
      } else {
        return MaskBorder.__super__.prefixed.apply(this, arguments);
      }
    };

    return MaskBorder;

  })(Declaration);

  module.exports = MaskBorder;

}).call(this);

},{"../declaration":6}],42:[function(require,module,exports){
(function() {
  var Declaration, Order, flexSpec,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  flexSpec = require('./flex-spec');

  Declaration = require('../declaration');

  Order = (function(superClass) {
    extend(Order, superClass);

    function Order() {
      return Order.__super__.constructor.apply(this, arguments);
    }

    Order.names = ['order', 'flex-order', 'box-ordinal-group'];

    Order.prototype.prefixed = function(prop, prefix) {
      var ref, spec;
      ref = flexSpec(prefix), spec = ref[0], prefix = ref[1];
      if (spec === 2009) {
        return prefix + 'box-ordinal-group';
      } else if (spec === 2012) {
        return prefix + 'flex-order';
      } else {
        return Order.__super__.prefixed.apply(this, arguments);
      }
    };

    Order.prototype.normalize = function(prop) {
      return 'order';
    };

    Order.prototype.set = function(decl, prefix) {
      var spec;
      spec = flexSpec(prefix)[0];
      if (spec === 2009) {
        decl.value = (parseInt(decl.value) + 1).toString();
        return Order.__super__.set.call(this, decl, prefix);
      } else {
        return Order.__super__.set.apply(this, arguments);
      }
    };

    return Order;

  })(Declaration);

  module.exports = Order;

}).call(this);

},{"../declaration":6,"./flex-spec":26}],43:[function(require,module,exports){
(function() {
  var OldValue, Pixelated, Value,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  OldValue = require('../old-value');

  Value = require('../value');

  Pixelated = (function(superClass) {
    extend(Pixelated, superClass);

    function Pixelated() {
      return Pixelated.__super__.constructor.apply(this, arguments);
    }

    Pixelated.names = ['pixelated'];

    Pixelated.prototype.replace = function(string, prefix) {
      if (prefix === '-webkit-') {
        return string.replace(this.regexp(), '$1-webkit-optimize-contrast');
      } else if (prefix === '-moz-') {
        return string.replace(this.regexp(), '$1-moz-crisp-edges');
      } else {
        return Pixelated.__super__.replace.apply(this, arguments);
      }
    };

    Pixelated.prototype.old = function(prefix) {
      if (prefix === '-webkit-') {
        return new OldValue(this.name, '-webkit-optimize-contrast');
      } else if (prefix === '-moz-') {
        return new OldValue(this.name, '-moz-crisp-edges');
      } else {
        return Pixelated.__super__.old.apply(this, arguments);
      }
    };

    return Pixelated;

  })(Value);

  module.exports = Pixelated;

}).call(this);

},{"../old-value":50,"../value":59}],44:[function(require,module,exports){
(function() {
  var Placeholder, Selector,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Selector = require('../selector');

  Placeholder = (function(superClass) {
    extend(Placeholder, superClass);

    function Placeholder() {
      return Placeholder.__super__.constructor.apply(this, arguments);
    }

    Placeholder.names = [':placeholder-shown', '::placeholder'];

    Placeholder.prototype.possible = function() {
      return Placeholder.__super__.possible.apply(this, arguments).concat('-moz- old');
    };

    Placeholder.prototype.prefixed = function(prefix) {
      if ('-webkit-' === prefix) {
        return '::-webkit-input-placeholder';
      } else if ('-ms-' === prefix) {
        return ':-ms-input-placeholder';
      } else if ('-moz- old' === prefix) {
        return ':-moz-placeholder';
      } else {
        return "::" + prefix + "placeholder";
      }
    };

    return Placeholder;

  })(Selector);

  module.exports = Placeholder;

}).call(this);

},{"../selector":55}],45:[function(require,module,exports){
(function() {
  var Declaration, TextEmphasisPosition,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Declaration = require('../declaration');

  TextEmphasisPosition = (function(superClass) {
    extend(TextEmphasisPosition, superClass);

    function TextEmphasisPosition() {
      return TextEmphasisPosition.__super__.constructor.apply(this, arguments);
    }

    TextEmphasisPosition.names = ['text-emphasis-position'];

    TextEmphasisPosition.prototype.set = function(decl, prefix) {
      if (prefix === '-webkit-') {
        decl.value = decl.value.replace(/\s*(right|left)\s*/i, '');
        return TextEmphasisPosition.__super__.set.call(this, decl, prefix);
      } else {
        return TextEmphasisPosition.__super__.set.apply(this, arguments);
      }
    };

    return TextEmphasisPosition;

  })(Declaration);

  module.exports = TextEmphasisPosition;

}).call(this);

},{"../declaration":6}],46:[function(require,module,exports){
(function() {
  var Declaration, TransformDecl,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Declaration = require('../declaration');

  TransformDecl = (function(superClass) {
    extend(TransformDecl, superClass);

    function TransformDecl() {
      return TransformDecl.__super__.constructor.apply(this, arguments);
    }

    TransformDecl.names = ['transform', 'transform-origin'];

    TransformDecl.functions3d = ['matrix3d', 'translate3d', 'translateZ', 'scale3d', 'scaleZ', 'rotate3d', 'rotateX', 'rotateY', 'perspective'];

    TransformDecl.prototype.keyframeParents = function(decl) {
      var parent;
      parent = decl.parent;
      while (parent) {
        if (parent.type === 'atrule' && parent.name === 'keyframes') {
          return true;
        }
        parent = parent.parent;
      }
      return false;
    };

    TransformDecl.prototype.contain3d = function(decl) {
      var func, i, len, ref;
      if (decl.prop === 'transform-origin') {
        return false;
      }
      ref = TransformDecl.functions3d;
      for (i = 0, len = ref.length; i < len; i++) {
        func = ref[i];
        if (decl.value.indexOf(func + "(") !== -1) {
          return true;
        }
      }
      return false;
    };

    TransformDecl.prototype.set = function(decl, prefix) {
      decl = TransformDecl.__super__.set.apply(this, arguments);
      if (prefix === '-ms-') {
        decl.value = decl.value.replace(/rotateZ/gi, 'rotate');
      }
      return decl;
    };

    TransformDecl.prototype.insert = function(decl, prefix, prefixes) {
      if (prefix === '-ms-') {
        if (!this.contain3d(decl) && !this.keyframeParents(decl)) {
          return TransformDecl.__super__.insert.apply(this, arguments);
        }
      } else if (prefix === '-o-') {
        if (!this.contain3d(decl)) {
          return TransformDecl.__super__.insert.apply(this, arguments);
        }
      } else {
        return TransformDecl.__super__.insert.apply(this, arguments);
      }
    };

    return TransformDecl;

  })(Declaration);

  module.exports = TransformDecl;

}).call(this);

},{"../declaration":6}],47:[function(require,module,exports){
(function() {
  var Declaration, WritingMode,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Declaration = require('../declaration');

  WritingMode = (function(superClass) {
    extend(WritingMode, superClass);

    function WritingMode() {
      return WritingMode.__super__.constructor.apply(this, arguments);
    }

    WritingMode.names = ['writing-mode'];

    WritingMode.msValues = {
      'horizontal-tb': 'lr-tb',
      'vertical-rl': 'tb-rl',
      'vertical-lr': 'tb-lr'
    };

    WritingMode.prototype.set = function(decl, prefix) {
      if (prefix === '-ms-') {
        decl.value = WritingMode.msValues[decl.value] || decl.value;
        return WritingMode.__super__.set.call(this, decl, prefix);
      } else {
        return WritingMode.__super__.set.apply(this, arguments);
      }
    };

    return WritingMode;

  })(Declaration);

  module.exports = WritingMode;

}).call(this);

},{"../declaration":6}],48:[function(require,module,exports){
(function() {
  var browserslist, capitalize, names, prefix;

  browserslist = require('browserslist');

  capitalize = function(str) {
    return str.slice(0, 1).toUpperCase() + str.slice(1);
  };

  names = {
    ie: 'IE',
    ie_mob: 'IE Mobile',
    ios_saf: 'iOS',
    op_mini: 'Opera Mini',
    op_mob: 'Opera Mobile',
    and_chr: 'Chrome for Android',
    and_ff: 'Firefox for Android',
    and_uc: 'UC for Android'
  };

  prefix = function(name, prefixes) {
    var out;
    out = '  ' + name + ': ';
    out += prefixes.map(function(i) {
      return i.replace(/^-(.*)-$/g, '$1');
    }).join(', ');
    out += "\n";
    return out;
  };

  module.exports = function(prefixes) {
    var atrules, browser, coverage, data, j, k, l, len, len1, len2, list, name, out, props, ref, ref1, ref2, ref3, ref4, ref5, round, selector, selectors, string, value, values, version, versions;
    if (prefixes.browsers.selected.length === 0) {
      return "No browsers selected";
    }
    versions = [];
    ref = prefixes.browsers.selected;
    for (j = 0, len = ref.length; j < len; j++) {
      browser = ref[j];
      ref1 = browser.split(' '), name = ref1[0], version = ref1[1];
      name = names[name] || capitalize(name);
      if (versions[name]) {
        versions[name].push(version);
      } else {
        versions[name] = [version];
      }
    }
    out = "Browsers:\n";
    for (browser in versions) {
      list = versions[browser];
      list = list.sort(function(a, b) {
        return parseFloat(b) - parseFloat(a);
      });
      out += '  ' + browser + ': ' + list.join(', ') + "\n";
    }
    coverage = browserslist.coverage(prefixes.browsers.selected);
    round = Math.round(coverage * 100) / 100.0;
    out += "\nThese browsers account for " + round + "% of all users globally\n";
    atrules = '';
    ref2 = prefixes.add;
    for (name in ref2) {
      data = ref2[name];
      if (name[0] === '@' && data.prefixes) {
        atrules += prefix(name, data.prefixes);
      }
    }
    if (atrules !== '') {
      out += "\nAt-Rules:\n" + atrules;
    }
    selectors = '';
    ref3 = prefixes.add.selectors;
    for (k = 0, len1 = ref3.length; k < len1; k++) {
      selector = ref3[k];
      if (selector.prefixes) {
        selectors += prefix(selector.name, selector.prefixes);
      }
    }
    if (selectors !== '') {
      out += "\nSelectors:\n" + selectors;
    }
    values = '';
    props = '';
    ref4 = prefixes.add;
    for (name in ref4) {
      data = ref4[name];
      if (name[0] !== '@' && data.prefixes) {
        props += prefix(name, data.prefixes);
      }
      if (!data.values) {
        continue;
      }
      ref5 = data.values;
      for (l = 0, len2 = ref5.length; l < len2; l++) {
        value = ref5[l];
        string = prefix(value.name, value.prefixes);
        if (values.indexOf(string) === -1) {
          values += string;
        }
      }
    }
    if (props !== '') {
      out += "\nProperties:\n" + props;
    }
    if (values !== '') {
      out += "\nValues:\n" + values;
    }
    if (atrules === '' && selectors === '' && props === '' && values === '') {
      out += '\nAwesome! Your browsers don\'t require any vendor prefixes.' + '\nNow you can remove Autoprefixer from build steps.';
    }
    return out;
  };

}).call(this);

},{"browserslist":64}],49:[function(require,module,exports){
(function() {
  var OldSelector;

  OldSelector = (function() {
    function OldSelector(selector, prefix1) {
      var i, len, prefix, ref;
      this.prefix = prefix1;
      this.prefixed = selector.prefixed(this.prefix);
      this.regexp = selector.regexp(this.prefix);
      this.prefixeds = [];
      ref = selector.possible();
      for (i = 0, len = ref.length; i < len; i++) {
        prefix = ref[i];
        this.prefixeds.push([selector.prefixed(prefix), selector.regexp(prefix)]);
      }
      this.unprefixed = selector.name;
      this.nameRegexp = selector.regexp();
    }

    OldSelector.prototype.isHack = function(rule) {
      var before, i, index, len, ref, ref1, regexp, rules, some, string;
      index = rule.parent.index(rule) + 1;
      rules = rule.parent.nodes;
      while (index < rules.length) {
        before = rules[index].selector;
        if (!before) {
          return true;
        }
        if (before.indexOf(this.unprefixed) !== -1 && before.match(this.nameRegexp)) {
          return false;
        }
        some = false;
        ref = this.prefixeds;
        for (i = 0, len = ref.length; i < len; i++) {
          ref1 = ref[i], string = ref1[0], regexp = ref1[1];
          if (before.indexOf(string) !== -1 && before.match(regexp)) {
            some = true;
            break;
          }
        }
        if (!some) {
          return true;
        }
        index += 1;
      }
      return true;
    };

    OldSelector.prototype.check = function(rule) {
      if (rule.selector.indexOf(this.prefixed) === -1) {
        return false;
      }
      if (!rule.selector.match(this.regexp)) {
        return false;
      }
      if (this.isHack(rule)) {
        return false;
      }
      return true;
    };

    return OldSelector;

  })();

  module.exports = OldSelector;

}).call(this);

},{}],50:[function(require,module,exports){
(function() {
  var OldValue, utils;

  utils = require('./utils');

  OldValue = (function() {
    function OldValue(unprefixed, prefixed, string, regexp) {
      this.unprefixed = unprefixed;
      this.prefixed = prefixed;
      this.string = string;
      this.regexp = regexp;
      this.regexp || (this.regexp = utils.regexp(this.prefixed));
      this.string || (this.string = this.prefixed);
    }

    OldValue.prototype.check = function(value) {
      if (value.indexOf(this.string) !== -1) {
        return !!value.match(this.regexp);
      } else {
        return false;
      }
    };

    return OldValue;

  })();

  module.exports = OldValue;

}).call(this);

},{"./utils":58}],51:[function(require,module,exports){
(function() {
  var Browsers, Prefixer, clone, utils, vendor,
    hasProp = {}.hasOwnProperty;

  Browsers = require('./browsers');

  utils = require('./utils');

  vendor = require('postcss/lib/vendor');

  clone = function(obj, parent) {
    var cloned, i, value;
    cloned = new obj.constructor();
    for (i in obj) {
      if (!hasProp.call(obj, i)) continue;
      value = obj[i];
      if (i === 'parent' && typeof value === 'object') {
        if (parent) {
          cloned[i] = parent;
        }
      } else if (i === 'source') {
        cloned[i] = value;
      } else if (i === null) {
        cloned[i] = value;
      } else if (value instanceof Array) {
        cloned[i] = value.map(function(i) {
          return clone(i, cloned);
        });
      } else if (i !== '_autoprefixerPrefix' && i !== '_autoprefixerValues') {
        if (typeof value === 'object' && value !== null) {
          value = clone(value, cloned);
        }
        cloned[i] = value;
      }
    }
    return cloned;
  };

  Prefixer = (function() {
    Prefixer.hack = function(klass) {
      var j, len, name, ref, results;
      this.hacks || (this.hacks = {});
      ref = klass.names;
      results = [];
      for (j = 0, len = ref.length; j < len; j++) {
        name = ref[j];
        results.push(this.hacks[name] = klass);
      }
      return results;
    };

    Prefixer.load = function(name, prefixes, all) {
      var klass, ref;
      klass = (ref = this.hacks) != null ? ref[name] : void 0;
      if (klass) {
        return new klass(name, prefixes, all);
      } else {
        return new this(name, prefixes, all);
      }
    };

    Prefixer.clone = function(node, overrides) {
      var cloned, name;
      cloned = clone(node);
      for (name in overrides) {
        cloned[name] = overrides[name];
      }
      return cloned;
    };

    function Prefixer(name1, prefixes1, all1) {
      this.name = name1;
      this.prefixes = prefixes1;
      this.all = all1;
    }

    Prefixer.prototype.parentPrefix = function(node) {
      var prefix;
      prefix = node._autoprefixerPrefix != null ? node._autoprefixerPrefix : node.type === 'decl' && node.prop[0] === '-' ? vendor.prefix(node.prop) : node.type === 'root' ? false : node.type === 'rule' && node.selector.indexOf(':-') !== -1 && /:(-\w+-)/.test(node.selector) ? node.selector.match(/:(-\w+-)/)[1] : node.type === 'atrule' && node.name[0] === '-' ? vendor.prefix(node.name) : this.parentPrefix(node.parent);
      if (Browsers.prefixes().indexOf(prefix) === -1) {
        prefix = false;
      }
      return node._autoprefixerPrefix = prefix;
    };

    Prefixer.prototype.process = function(node) {
      var added, j, k, len, len1, parent, prefix, prefixes, ref;
      if (!this.check(node)) {
        return;
      }
      parent = this.parentPrefix(node);
      prefixes = [];
      ref = this.prefixes;
      for (j = 0, len = ref.length; j < len; j++) {
        prefix = ref[j];
        if (parent && parent !== utils.removeNote(prefix)) {
          continue;
        }
        prefixes.push(prefix);
      }
      added = [];
      for (k = 0, len1 = prefixes.length; k < len1; k++) {
        prefix = prefixes[k];
        if (this.add(node, prefix, added.concat([prefix]))) {
          added.push(prefix);
        }
      }
      return added;
    };

    Prefixer.prototype.clone = function(node, overrides) {
      return Prefixer.clone(node, overrides);
    };

    return Prefixer;

  })();

  module.exports = Prefixer;

}).call(this);

},{"./browsers":5,"./utils":58,"postcss/lib/vendor":157}],52:[function(require,module,exports){
(function() {
  var AtRule, Browsers, Declaration, Prefixes, Processor, Resolution, Selector, Supports, Transition, Value, declsCache, utils, vendor;

  Declaration = require('./declaration');

  Resolution = require('./resolution');

  Transition = require('./transition');

  Processor = require('./processor');

  Supports = require('./supports');

  Browsers = require('./browsers');

  Selector = require('./selector');

  AtRule = require('./at-rule');

  Value = require('./value');

  utils = require('./utils');

  vendor = require('postcss/lib/vendor');

  Selector.hack(require('./hacks/fullscreen'));

  Selector.hack(require('./hacks/placeholder'));

  Declaration.hack(require('./hacks/flex'));

  Declaration.hack(require('./hacks/order'));

  Declaration.hack(require('./hacks/filter'));

  Declaration.hack(require('./hacks/grid-end'));

  Declaration.hack(require('./hacks/flex-flow'));

  Declaration.hack(require('./hacks/flex-grow'));

  Declaration.hack(require('./hacks/flex-wrap'));

  Declaration.hack(require('./hacks/grid-start'));

  Declaration.hack(require('./hacks/align-self'));

  Declaration.hack(require('./hacks/flex-basis'));

  Declaration.hack(require('./hacks/mask-border'));

  Declaration.hack(require('./hacks/align-items'));

  Declaration.hack(require('./hacks/flex-shrink'));

  Declaration.hack(require('./hacks/break-props'));

  Declaration.hack(require('./hacks/writing-mode'));

  Declaration.hack(require('./hacks/border-image'));

  Declaration.hack(require('./hacks/justify-items'));

  Declaration.hack(require('./hacks/align-content'));

  Declaration.hack(require('./hacks/border-radius'));

  Declaration.hack(require('./hacks/block-logical'));

  Declaration.hack(require('./hacks/grid-template'));

  Declaration.hack(require('./hacks/inline-logical'));

  Declaration.hack(require('./hacks/grid-row-align'));

  Declaration.hack(require('./hacks/transform-decl'));

  Declaration.hack(require('./hacks/flex-direction'));

  Declaration.hack(require('./hacks/image-rendering'));

  Declaration.hack(require('./hacks/justify-content'));

  Declaration.hack(require('./hacks/background-size'));

  Declaration.hack(require('./hacks/text-emphasis-position'));

  Value.hack(require('./hacks/fill'));

  Value.hack(require('./hacks/gradient'));

  Value.hack(require('./hacks/pixelated'));

  Value.hack(require('./hacks/image-set'));

  Value.hack(require('./hacks/cross-fade'));

  Value.hack(require('./hacks/flex-values'));

  Value.hack(require('./hacks/display-flex'));

  Value.hack(require('./hacks/display-grid'));

  Value.hack(require('./hacks/filter-value'));

  declsCache = {};

  Prefixes = (function() {
    function Prefixes(data1, browsers, options) {
      var ref;
      this.data = data1;
      this.browsers = browsers;
      this.options = options != null ? options : {};
      ref = this.preprocess(this.select(this.data)), this.add = ref[0], this.remove = ref[1];
      this.transition = new Transition(this);
      this.processor = new Processor(this);
    }

    Prefixes.prototype.cleaner = function() {
      var empty;
      if (!this.cleanerCache) {
        if (this.browsers.selected.length) {
          empty = new Browsers(this.browsers.data, []);
          this.cleanerCache = new Prefixes(this.data, empty, this.options);
        } else {
          return this;
        }
      }
      return this.cleanerCache;
    };

    Prefixes.prototype.select = function(list) {
      var add, all, data, name, notes, selected;
      selected = {
        add: {},
        remove: {}
      };
      for (name in list) {
        data = list[name];
        add = data.browsers.map(function(i) {
          var params;
          params = i.split(' ');
          return {
            browser: params[0] + ' ' + params[1],
            note: params[2]
          };
        });
        notes = add.filter(function(i) {
          return i.note;
        }).map((function(_this) {
          return function(i) {
            return _this.browsers.prefix(i.browser) + ' ' + i.note;
          };
        })(this));
        notes = utils.uniq(notes);
        add = add.filter((function(_this) {
          return function(i) {
            return _this.browsers.isSelected(i.browser);
          };
        })(this)).map((function(_this) {
          return function(i) {
            var prefix;
            prefix = _this.browsers.prefix(i.browser);
            if (i.note) {
              return prefix + ' ' + i.note;
            } else {
              return prefix;
            }
          };
        })(this));
        add = this.sort(utils.uniq(add));
        if (this.options.flexbox === 'no-2009') {
          add = add.filter(function(i) {
            return i.indexOf('2009') === -1;
          });
        }
        all = data.browsers.map((function(_this) {
          return function(i) {
            return _this.browsers.prefix(i);
          };
        })(this));
        if (data.mistakes) {
          all = all.concat(data.mistakes);
        }
        all = all.concat(notes);
        all = utils.uniq(all);
        if (add.length) {
          selected.add[name] = add;
          if (add.length < all.length) {
            selected.remove[name] = all.filter(function(i) {
              return add.indexOf(i) === -1;
            });
          }
        } else {
          selected.remove[name] = all;
        }
      }
      return selected;
    };

    Prefixes.prototype.sort = function(prefixes) {
      return prefixes.sort(function(a, b) {
        var aLength, bLength;
        aLength = utils.removeNote(a).length;
        bLength = utils.removeNote(b).length;
        if (aLength === bLength) {
          return b.length - a.length;
        } else {
          return bLength - aLength;
        }
      });
    };

    Prefixes.prototype.preprocess = function(selected) {
      var a, add, j, k, l, len, len1, len2, len3, len4, len5, len6, m, n, name, o, old, olds, p, prefix, prefixed, prefixes, prop, props, ref, ref1, ref2, ref3, remove, selector, value, values;
      add = {
        selectors: [],
        '@supports': new Supports(Prefixes, this)
      };
      ref = selected.add;
      for (name in ref) {
        prefixes = ref[name];
        if (name === '@keyframes' || name === '@viewport') {
          add[name] = new AtRule(name, prefixes, this);
        } else if (name === '@resolution') {
          add[name] = new Resolution(name, prefixes, this);
        } else if (this.data[name].selector) {
          add.selectors.push(Selector.load(name, prefixes, this));
        } else {
          props = this.data[name].props;
          if (props) {
            value = Value.load(name, prefixes, this);
            for (j = 0, len = props.length; j < len; j++) {
              prop = props[j];
              if (!add[prop]) {
                add[prop] = {
                  values: []
                };
              }
              add[prop].values.push(value);
            }
          } else {
            values = ((ref1 = add[name]) != null ? ref1.values : void 0) || [];
            add[name] = Declaration.load(name, prefixes, this);
            add[name].values = values;
          }
        }
      }
      remove = {
        selectors: []
      };
      ref2 = selected.remove;
      for (name in ref2) {
        prefixes = ref2[name];
        if (this.data[name].selector) {
          selector = Selector.load(name, prefixes);
          for (k = 0, len1 = prefixes.length; k < len1; k++) {
            prefix = prefixes[k];
            remove.selectors.push(selector.old(prefix));
          }
        } else if (name === '@keyframes' || name === '@viewport') {
          for (l = 0, len2 = prefixes.length; l < len2; l++) {
            prefix = prefixes[l];
            prefixed = '@' + prefix + name.slice(1);
            remove[prefixed] = {
              remove: true
            };
          }
        } else if (name === '@resolution') {
          remove[name] = new Resolution(name, prefixes, this);
        } else {
          props = this.data[name].props;
          if (props) {
            value = Value.load(name, [], this);
            for (m = 0, len3 = prefixes.length; m < len3; m++) {
              prefix = prefixes[m];
              old = value.old(prefix);
              if (old) {
                for (n = 0, len4 = props.length; n < len4; n++) {
                  prop = props[n];
                  if (!remove[prop]) {
                    remove[prop] = {};
                  }
                  if (!remove[prop].values) {
                    remove[prop].values = [];
                  }
                  remove[prop].values.push(old);
                }
              }
            }
          } else {
            for (o = 0, len5 = prefixes.length; o < len5; o++) {
              prefix = prefixes[o];
              prop = vendor.unprefixed(name);
              olds = this.decl(name).old(name, prefix);
              if (name === 'align-self') {
                a = (ref3 = add[name]) != null ? ref3.prefixes : void 0;
                if (a) {
                  if (prefix === '-webkit- 2009' && a.indexOf('-webkit-') !== -1) {
                    continue;
                  } else if (prefix === '-webkit-' && a.indexOf('-webkit- 2009') !== -1) {
                    continue;
                  }
                }
              }
              for (p = 0, len6 = olds.length; p < len6; p++) {
                prefixed = olds[p];
                if (!remove[prefixed]) {
                  remove[prefixed] = {};
                }
                remove[prefixed].remove = true;
              }
            }
          }
        }
      }
      return [add, remove];
    };

    Prefixes.prototype.decl = function(prop) {
      var decl;
      decl = declsCache[prop];
      if (decl) {
        return decl;
      } else {
        return declsCache[prop] = Declaration.load(prop);
      }
    };

    Prefixes.prototype.unprefixed = function(prop) {
      return this.normalize(vendor.unprefixed(prop));
    };

    Prefixes.prototype.normalize = function(prop) {
      return this.decl(prop).normalize(prop);
    };

    Prefixes.prototype.prefixed = function(prop, prefix) {
      prop = vendor.unprefixed(prop);
      return this.decl(prop).prefixed(prop, prefix);
    };

    Prefixes.prototype.values = function(type, prop) {
      var data, global, ref, ref1, values;
      data = this[type];
      global = (ref = data['*']) != null ? ref.values : void 0;
      values = (ref1 = data[prop]) != null ? ref1.values : void 0;
      if (global && values) {
        return utils.uniq(global.concat(values));
      } else {
        return global || values || [];
      }
    };

    Prefixes.prototype.group = function(decl) {
      var checker, index, length, rule, unprefixed;
      rule = decl.parent;
      index = rule.index(decl);
      length = rule.nodes.length;
      unprefixed = this.unprefixed(decl.prop);
      checker = (function(_this) {
        return function(step, callback) {
          var other;
          index += step;
          while (index >= 0 && index < length) {
            other = rule.nodes[index];
            if (other.type === 'decl') {
              if (step === -1 && other.prop === unprefixed) {
                if (!Browsers.withPrefix(other.value)) {
                  break;
                }
              }
              if (_this.unprefixed(other.prop) !== unprefixed) {
                break;
              } else if (callback(other) === true) {
                return true;
              }
              if (step === +1 && other.prop === unprefixed) {
                if (!Browsers.withPrefix(other.value)) {
                  break;
                }
              }
            }
            index += step;
          }
          return false;
        };
      })(this);
      return {
        up: function(callback) {
          return checker(-1, callback);
        },
        down: function(callback) {
          return checker(+1, callback);
        }
      };
    };

    return Prefixes;

  })();

  module.exports = Prefixes;

}).call(this);

},{"./at-rule":2,"./browsers":5,"./declaration":6,"./hacks/align-content":7,"./hacks/align-items":8,"./hacks/align-self":9,"./hacks/background-size":10,"./hacks/block-logical":11,"./hacks/border-image":12,"./hacks/border-radius":13,"./hacks/break-props":14,"./hacks/cross-fade":15,"./hacks/display-flex":16,"./hacks/display-grid":17,"./hacks/fill":18,"./hacks/filter":20,"./hacks/filter-value":19,"./hacks/flex":29,"./hacks/flex-basis":21,"./hacks/flex-direction":22,"./hacks/flex-flow":23,"./hacks/flex-grow":24,"./hacks/flex-shrink":25,"./hacks/flex-values":27,"./hacks/flex-wrap":28,"./hacks/fullscreen":30,"./hacks/gradient":31,"./hacks/grid-end":32,"./hacks/grid-row-align":33,"./hacks/grid-start":34,"./hacks/grid-template":35,"./hacks/image-rendering":36,"./hacks/image-set":37,"./hacks/inline-logical":38,"./hacks/justify-content":39,"./hacks/justify-items":40,"./hacks/mask-border":41,"./hacks/order":42,"./hacks/pixelated":43,"./hacks/placeholder":44,"./hacks/text-emphasis-position":45,"./hacks/transform-decl":46,"./hacks/writing-mode":47,"./processor":53,"./resolution":54,"./selector":55,"./supports":56,"./transition":57,"./utils":58,"./value":59,"postcss/lib/vendor":157}],53:[function(require,module,exports){
(function() {
  var OLD_DIRECTION, Processor, Value, utils, vendor;

  vendor = require('postcss/lib/vendor');

  Value = require('./value');

  utils = require('./utils');

  OLD_DIRECTION = /(^|[^-])(linear|radial)-gradient\(\s*(top|left|right|bottom)/i;

  Processor = (function() {
    function Processor(prefixes) {
      this.prefixes = prefixes;
    }

    Processor.prototype.add = function(css, result) {
      var keyframes, resolution, supports, viewport;
      resolution = this.prefixes.add['@resolution'];
      keyframes = this.prefixes.add['@keyframes'];
      viewport = this.prefixes.add['@viewport'];
      supports = this.prefixes.add['@supports'];
      css.walkAtRules((function(_this) {
        return function(rule) {
          if (rule.name === 'keyframes') {
            if (!_this.disabled(rule)) {
              return keyframes != null ? keyframes.process(rule) : void 0;
            }
          } else if (rule.name === 'viewport') {
            if (!_this.disabled(rule)) {
              return viewport != null ? viewport.process(rule) : void 0;
            }
          } else if (rule.name === 'supports') {
            if (_this.prefixes.options.supports !== false && !_this.disabled(rule)) {
              return supports.process(rule);
            }
          } else if (rule.name === 'media' && rule.params.indexOf('-resolution') !== -1) {
            if (!_this.disabled(rule)) {
              return resolution != null ? resolution.process(rule) : void 0;
            }
          }
        };
      })(this));
      css.walkRules((function(_this) {
        return function(rule) {
          var j, len, ref, results, selector;
          if (_this.disabled(rule)) {
            return;
          }
          ref = _this.prefixes.add.selectors;
          results = [];
          for (j = 0, len = ref.length; j < len; j++) {
            selector = ref[j];
            results.push(selector.process(rule, result));
          }
          return results;
        };
      })(this));
      css.walkDecls((function(_this) {
        return function(decl) {
          var display, prefixer;
          if (_this.disabled(decl)) {
            return;
          }
          if (decl.prop === 'display' && decl.value === 'box') {
            result.warn('You should write display: flex by final spec ' + 'instead of display: box', {
              node: decl
            });
            return;
          }
          if (decl.value.indexOf('linear-gradient') !== -1) {
            if (OLD_DIRECTION.test(decl.value)) {
              result.warn('Gradient has outdated direction syntax. ' + 'New syntax is like `to left` instead of `right`.', {
                node: decl
              });
            }
          }
          if (decl.prop === 'text-emphasis-position') {
            if (decl.value === 'under' || decl.value === 'over') {
              result.warn('You should use 2 values for text-emphasis-position ' + 'For example, `under left` instead of just `under`.', {
                node: decl
              });
            }
          }
          if (decl.value.indexOf('fill-available') !== -1) {
            result.warn('Replace fill-available to fill, ' + 'because spec had been changed', {
              node: decl
            });
          }
          if (_this.prefixes.options.flexbox !== false) {
            if (decl.prop === 'grid-row-end' && decl.value.indexOf('span') === -1) {
              result.warn('IE supports only grid-row-end with span. ' + 'You should add grid: false option to Autoprefixer ' + 'and use some JS grid polyfill for full spec support', {
                node: decl
              });
            }
            if (decl.prop === 'grid-row') {
              if (decl.value.indexOf('/') !== -1 && decl.value.indexOf('span') === -1) {
                result.warn('IE supports only grid-row with / and span. ' + 'You should add grid: false option to Autoprefixer ' + 'and use some JS grid polyfill for full spec support', {
                  node: decl
                });
              }
            }
          }
          if (decl.prop === 'transition' || decl.prop === 'transition-property') {
            return _this.prefixes.transition.add(decl, result);
          } else if (decl.prop === 'align-self') {
            display = _this.displayType(decl);
            if (display !== 'grid' && _this.prefixes.options.flexbox !== false) {
              prefixer = _this.prefixes.add['align-self'];
              if (prefixer && prefixer.prefixes) {
                prefixer.process(decl);
              }
            }
            if (display !== 'flex' && _this.prefixes.options.grid !== false) {
              prefixer = _this.prefixes.add['grid-row-align'];
              if (prefixer && prefixer.prefixes) {
                return prefixer.process(decl);
              }
            }
          } else {
            prefixer = _this.prefixes.add[decl.prop];
            if (prefixer && prefixer.prefixes) {
              return prefixer.process(decl);
            }
          }
        };
      })(this));
      return css.walkDecls((function(_this) {
        return function(decl) {
          var j, len, ref, unprefixed, value;
          if (_this.disabled(decl)) {
            return;
          }
          unprefixed = _this.prefixes.unprefixed(decl.prop);
          ref = _this.prefixes.values('add', unprefixed);
          for (j = 0, len = ref.length; j < len; j++) {
            value = ref[j];
            value.process(decl, result);
          }
          return Value.save(_this.prefixes, decl);
        };
      })(this));
    };

    Processor.prototype.remove = function(css) {
      var checker, j, len, ref, resolution;
      resolution = this.prefixes.remove['@resolution'];
      css.walkAtRules((function(_this) {
        return function(rule, i) {
          if (_this.prefixes.remove['@' + rule.name]) {
            if (!_this.disabled(rule)) {
              return rule.parent.removeChild(i);
            }
          } else if (rule.name === 'media' && rule.params.indexOf('-resolution') !== -1) {
            return resolution != null ? resolution.clean(rule) : void 0;
          }
        };
      })(this));
      ref = this.prefixes.remove.selectors;
      for (j = 0, len = ref.length; j < len; j++) {
        checker = ref[j];
        css.walkRules((function(_this) {
          return function(rule, i) {
            if (checker.check(rule)) {
              if (!_this.disabled(rule)) {
                return rule.parent.removeChild(i);
              }
            }
          };
        })(this));
      }
      return css.walkDecls((function(_this) {
        return function(decl, i) {
          var k, len1, notHack, ref1, ref2, rule, unprefixed;
          if (_this.disabled(decl)) {
            return;
          }
          rule = decl.parent;
          unprefixed = _this.prefixes.unprefixed(decl.prop);
          if (decl.prop === 'transition' || decl.prop === 'transition-property') {
            _this.prefixes.transition.remove(decl);
          }
          if ((ref1 = _this.prefixes.remove[decl.prop]) != null ? ref1.remove : void 0) {
            notHack = _this.prefixes.group(decl).down(function(other) {
              return _this.prefixes.normalize(other.prop) === unprefixed;
            });
            if (notHack && !_this.withHackValue(decl)) {
              if (decl.raw('before').indexOf("\n") > -1) {
                _this.reduceSpaces(decl);
              }
              rule.removeChild(i);
              return;
            }
          }
          ref2 = _this.prefixes.values('remove', unprefixed);
          for (k = 0, len1 = ref2.length; k < len1; k++) {
            checker = ref2[k];
            if (checker.check(decl.value)) {
              unprefixed = checker.unprefixed;
              notHack = _this.prefixes.group(decl).down(function(other) {
                return other.value.indexOf(unprefixed) !== -1;
              });
              if (notHack) {
                rule.removeChild(i);
                return;
              } else if (checker.clean) {
                checker.clean(decl);
                return;
              }
            }
          }
        };
      })(this));
    };

    Processor.prototype.withHackValue = function(decl) {
      return decl.prop === '-webkit-background-clip' && decl.value === 'text';
    };

    Processor.prototype.disabled = function(node) {
      var other, status;
      if (this.prefixes.options.grid === false && node.type === 'decl') {
        if (node.prop === 'display' && node.value.indexOf('grid') !== -1) {
          return true;
        }
        if (node.prop.indexOf('grid') !== -1 || node.prop === 'justify-items') {
          return true;
        }
      }
      if (this.prefixes.options.flexbox === false && node.type === 'decl') {
        if (node.prop === 'display' && node.value.indexOf('flex') !== -1) {
          return true;
        }
        other = ['order', 'justify-content', 'align-items', 'align-content'];
        if (node.prop.indexOf('flex') !== -1 || other.indexOf(node.prop) !== -1) {
          return true;
        }
      }
      if (node._autoprefixerDisabled != null) {
        return node._autoprefixerDisabled;
      } else if (node.nodes) {
        status = void 0;
        node.each(function(i) {
          if (i.type !== 'comment') {
            return;
          }
          if (/(!\s*)?autoprefixer:\s*off/i.test(i.text)) {
            status = false;
            return false;
          } else if (/(!\s*)?autoprefixer:\s*on/i.test(i.text)) {
            status = true;
            return false;
          }
        });
        return node._autoprefixerDisabled = status != null ? !status : node.parent ? this.disabled(node.parent) : false;
      } else if (node.parent) {
        return node._autoprefixerDisabled = this.disabled(node.parent);
      } else {
        return false;
      }
    };

    Processor.prototype.reduceSpaces = function(decl) {
      var diff, parts, prevMin, stop;
      stop = false;
      this.prefixes.group(decl).up(function(other) {
        return stop = true;
      });
      if (stop) {
        return;
      }
      parts = decl.raw('before').split("\n");
      prevMin = parts[parts.length - 1].length;
      diff = false;
      return this.prefixes.group(decl).down(function(other) {
        var last;
        parts = other.raw('before').split("\n");
        last = parts.length - 1;
        if (parts[last].length > prevMin) {
          if (diff === false) {
            diff = parts[last].length - prevMin;
          }
          parts[last] = parts[last].slice(0, -diff);
          return other.raws.before = parts.join("\n");
        }
      });
    };

    Processor.prototype.displayType = function(decl) {
      var i, j, len, ref;
      ref = decl.parent.nodes;
      for (j = 0, len = ref.length; j < len; j++) {
        i = ref[j];
        if (i.prop === 'display') {
          if (i.value.indexOf('flex') !== -1) {
            return 'flex';
          } else if (i.value.indexOf('grid') !== -1) {
            return 'grid';
          }
        }
      }
      return false;
    };

    return Processor;

  })();

  module.exports = Processor;

}).call(this);

},{"./utils":58,"./value":59,"postcss/lib/vendor":157}],54:[function(require,module,exports){
(function() {
  var Prefixer, Resolution, n2f, regexp, split, utils,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Prefixer = require('./prefixer');

  utils = require('./utils');

  n2f = require('num2fraction');

  regexp = /(min|max)-resolution\s*:\s*\d*\.?\d+(dppx|dpi)/gi;

  split = /(min|max)-resolution(\s*:\s*)(\d*\.?\d+)(dppx|dpi)/i;

  Resolution = (function(superClass) {
    extend(Resolution, superClass);

    function Resolution() {
      return Resolution.__super__.constructor.apply(this, arguments);
    }

    Resolution.prototype.prefixName = function(prefix, name) {
      return name = prefix === '-moz-' ? name + '--moz-device-pixel-ratio' : prefix + name + '-device-pixel-ratio';
    };

    Resolution.prototype.prefixQuery = function(prefix, name, colon, value, units) {
      if (units === 'dpi') {
        value = Number(value / 96);
      }
      if (prefix === '-o-') {
        value = n2f(value);
      }
      return this.prefixName(prefix, name) + colon + value;
    };

    Resolution.prototype.clean = function(rule) {
      var j, len, prefix, ref;
      if (!this.bad) {
        this.bad = [];
        ref = this.prefixes;
        for (j = 0, len = ref.length; j < len; j++) {
          prefix = ref[j];
          this.bad.push(this.prefixName(prefix, 'min'));
          this.bad.push(this.prefixName(prefix, 'max'));
        }
      }
      return rule.params = utils.editList(rule.params, (function(_this) {
        return function(queries) {
          return queries.filter(function(query) {
            return _this.bad.every(function(i) {
              return query.indexOf(i) === -1;
            });
          });
        };
      })(this));
    };

    Resolution.prototype.process = function(rule) {
      var parent, prefixes;
      parent = this.parentPrefix(rule);
      prefixes = parent ? [parent] : this.prefixes;
      return rule.params = utils.editList(rule.params, (function(_this) {
        return function(origin, prefixed) {
          var j, k, len, len1, prefix, processed, query;
          for (j = 0, len = origin.length; j < len; j++) {
            query = origin[j];
            if (query.indexOf('min-resolution') === -1 && query.indexOf('max-resolution') === -1) {
              prefixed.push(query);
              continue;
            }
            for (k = 0, len1 = prefixes.length; k < len1; k++) {
              prefix = prefixes[k];
              if (prefix === '-moz-' && rule.params.indexOf('dpi') !== -1) {
                continue;
              } else {
                processed = query.replace(regexp, function(str) {
                  var parts;
                  parts = str.match(split);
                  return _this.prefixQuery(prefix, parts[1], parts[2], parts[3], parts[4]);
                });
                prefixed.push(processed);
              }
            }
            prefixed.push(query);
          }
          return utils.uniq(prefixed);
        };
      })(this));
    };

    return Resolution;

  })(Prefixer);

  module.exports = Resolution;

}).call(this);

},{"./prefixer":51,"./utils":58,"num2fraction":128}],55:[function(require,module,exports){
(function() {
  var Browsers, OldSelector, Prefixer, Selector, utils,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  OldSelector = require('./old-selector');

  Prefixer = require('./prefixer');

  Browsers = require('./browsers');

  utils = require('./utils');

  Selector = (function(superClass) {
    extend(Selector, superClass);

    function Selector(name1, prefixes, all) {
      this.name = name1;
      this.prefixes = prefixes;
      this.all = all;
      this.regexpCache = {};
    }

    Selector.prototype.check = function(rule) {
      if (rule.selector.indexOf(this.name) !== -1) {
        return !!rule.selector.match(this.regexp());
      } else {
        return false;
      }
    };

    Selector.prototype.prefixed = function(prefix) {
      return this.name.replace(/^([^\w]*)/, '$1' + prefix);
    };

    Selector.prototype.regexp = function(prefix) {
      var name;
      if (this.regexpCache[prefix]) {
        return this.regexpCache[prefix];
      }
      name = prefix ? this.prefixed(prefix) : this.name;
      return this.regexpCache[prefix] = RegExp("(^|[^:\"'=])" + (utils.escapeRegexp(name)), "gi");
    };

    Selector.prototype.possible = function() {
      return Browsers.prefixes();
    };

    Selector.prototype.prefixeds = function(rule) {
      var i, len, prefix, prefixeds, ref;
      if (rule._autoprefixerPrefixeds) {
        return rule._autoprefixerPrefixeds;
      }
      prefixeds = {};
      ref = this.possible();
      for (i = 0, len = ref.length; i < len; i++) {
        prefix = ref[i];
        prefixeds[prefix] = this.replace(rule.selector, prefix);
      }
      return rule._autoprefixerPrefixeds = prefixeds;
    };

    Selector.prototype.already = function(rule, prefixeds, prefix) {
      var before, index, key, prefixed, some;
      index = rule.parent.index(rule) - 1;
      while (index >= 0) {
        before = rule.parent.nodes[index];
        if (before.type !== 'rule') {
          return false;
        }
        some = false;
        for (key in prefixeds) {
          prefixed = prefixeds[key];
          if (before.selector === prefixed) {
            if (prefix === key) {
              return true;
            } else {
              some = true;
              break;
            }
          }
        }
        if (!some) {
          return false;
        }
        index -= 1;
      }
      return false;
    };

    Selector.prototype.replace = function(selector, prefix) {
      return selector.replace(this.regexp(), '$1' + this.prefixed(prefix));
    };

    Selector.prototype.add = function(rule, prefix) {
      var cloned, prefixeds;
      prefixeds = this.prefixeds(rule);
      if (this.already(rule, prefixeds, prefix)) {
        return;
      }
      cloned = this.clone(rule, {
        selector: prefixeds[prefix]
      });
      return rule.parent.insertBefore(rule, cloned);
    };

    Selector.prototype.old = function(prefix) {
      return new OldSelector(this, prefix);
    };

    return Selector;

  })(Prefixer);

  module.exports = Selector;

}).call(this);

},{"./browsers":5,"./old-selector":49,"./prefixer":51,"./utils":58}],56:[function(require,module,exports){
(function() {
  var Browsers, Supports, Value, brackets, browser, data, postcss, ref, support, supported, utils, version, versions;

  Browsers = require('./browsers');

  brackets = require('./brackets');

  Value = require('./value');

  utils = require('./utils');

  postcss = require('postcss');

  supported = [];

  data = require('caniuse-db/features-json/css-featurequeries.json');

  ref = data.stats;
  for (browser in ref) {
    versions = ref[browser];
    for (version in versions) {
      support = versions[version];
      if (/y/.test(support)) {
        supported.push(browser + ' ' + version);
      }
    }
  }

  Supports = (function() {
    function Supports(Prefixes, all1) {
      this.Prefixes = Prefixes;
      this.all = all1;
    }

    Supports.prototype.prefixer = function() {
      var browsers, filtered;
      if (this.prefixerCache) {
        return this.prefixerCache;
      }
      filtered = this.all.browsers.selected.filter((function(_this) {
        return function(i) {
          return supported.indexOf(i) !== -1;
        };
      })(this));
      browsers = new Browsers(this.all.browsers.data, filtered, this.all.options);
      return this.prefixerCache = new this.Prefixes(this.all.data, browsers, this.all.options);
    };

    Supports.prototype.parse = function(str) {
      var prop, ref1, value;
      ref1 = str.split(':'), prop = ref1[0], value = ref1[1];
      value || (value = '');
      return [prop.trim(), value.trim()];
    };

    Supports.prototype.virtual = function(str) {
      var prop, ref1, rule, value;
      ref1 = this.parse(str), prop = ref1[0], value = ref1[1];
      rule = postcss.parse('a{}').first;
      rule.append({
        prop: prop,
        value: value,
        raws: {
          before: ''
        }
      });
      return rule;
    };

    Supports.prototype.prefixed = function(str) {
      var decl, j, k, len, len1, prefixer, prop, ref1, ref2, rule, value;
      rule = this.virtual(str);
      prop = rule.first.prop;
      prefixer = this.prefixer().add[prop];
      if (prefixer != null) {
        if (typeof prefixer.process === "function") {
          prefixer.process(rule.first);
        }
      }
      ref1 = rule.nodes;
      for (j = 0, len = ref1.length; j < len; j++) {
        decl = ref1[j];
        ref2 = this.prefixer().values('add', prop);
        for (k = 0, len1 = ref2.length; k < len1; k++) {
          value = ref2[k];
          value.process(decl);
        }
        Value.save(this.all, decl);
      }
      return rule.nodes;
    };

    Supports.prototype.isNot = function(node) {
      return typeof node === 'string' && /not\s*/i.test(node);
    };

    Supports.prototype.isOr = function(node) {
      return typeof node === 'string' && /\s*or\s*/i.test(node);
    };

    Supports.prototype.isProp = function(node) {
      return typeof node === 'object' && node.length === 1 && typeof node[0] === 'string';
    };

    Supports.prototype.isHack = function(all, unprefixed) {
      var check;
      check = new RegExp('(\\(|\\s)' + utils.escapeRegexp(unprefixed) + ':');
      return !check.test(all);
    };

    Supports.prototype.toRemove = function(str, all) {
      var checker, j, len, prop, ref1, ref2, ref3, unprefixed, value;
      ref1 = this.parse(str), prop = ref1[0], value = ref1[1];
      unprefixed = this.all.unprefixed(prop);
      if (((ref2 = this.all.cleaner().remove[prop]) != null ? ref2.remove : void 0) && !this.isHack(all, unprefixed)) {
        return true;
      }
      ref3 = this.all.cleaner().values('remove', unprefixed);
      for (j = 0, len = ref3.length; j < len; j++) {
        checker = ref3[j];
        if (checker.check(value)) {
          return true;
        }
      }
      return false;
    };

    Supports.prototype.remove = function(nodes, all) {
      var i;
      i = 0;
      while (i < nodes.length) {
        if (!this.isNot(nodes[i - 1]) && this.isProp(nodes[i]) && this.isOr(nodes[i + 1])) {
          if (this.toRemove(nodes[i][0], all)) {
            nodes.splice(i, 2);
          } else {
            i += 2;
          }
        } else {
          if (typeof nodes[i] === 'object') {
            nodes[i] = this.remove(nodes[i], all);
          }
          i += 1;
        }
      }
      return nodes;
    };

    Supports.prototype.cleanBrackets = function(nodes) {
      return nodes.map((function(_this) {
        return function(i) {
          if (typeof i === 'object') {
            if (i.length === 1 && typeof i[0] === 'object') {
              return _this.cleanBrackets(i[0]);
            } else {
              return _this.cleanBrackets(i);
            }
          } else {
            return i;
          }
        };
      })(this));
    };

    Supports.prototype.convert = function(progress) {
      var i, j, len, result;
      result = [''];
      for (j = 0, len = progress.length; j < len; j++) {
        i = progress[j];
        result.push([i.prop + ": " + i.value]);
        result.push(' or ');
      }
      result[result.length - 1] = '';
      return result;
    };

    Supports.prototype.normalize = function(nodes) {
      if (typeof nodes === 'object') {
        nodes = nodes.filter(function(i) {
          return i !== '';
        });
        if (typeof nodes[0] === 'string' && nodes[0].indexOf(':') !== -1) {
          return [brackets.stringify(nodes)];
        } else {
          return nodes.map((function(_this) {
            return function(i) {
              return _this.normalize(i);
            };
          })(this));
        }
      } else {
        return nodes;
      }
    };

    Supports.prototype.add = function(nodes, all) {
      return nodes.map((function(_this) {
        return function(i) {
          var prefixed;
          if (_this.isProp(i)) {
            prefixed = _this.prefixed(i[0]);
            if (prefixed.length > 1) {
              return _this.convert(prefixed);
            } else {
              return i;
            }
          } else if (typeof i === 'object') {
            return _this.add(i, all);
          } else {
            return i;
          }
        };
      })(this));
    };

    Supports.prototype.process = function(rule) {
      var ast;
      ast = brackets.parse(rule.params);
      ast = this.normalize(ast);
      ast = this.remove(ast, rule.params);
      ast = this.add(ast, rule.params);
      ast = this.cleanBrackets(ast);
      return rule.params = brackets.stringify(ast);
    };

    return Supports;

  })();

  module.exports = Supports;

}).call(this);

},{"./brackets":4,"./browsers":5,"./utils":58,"./value":59,"caniuse-db/features-json/css-featurequeries.json":81,"postcss":147}],57:[function(require,module,exports){
(function() {
  var Transition, list, parser, vendor;

  parser = require('postcss-value-parser');

  vendor = require('postcss/lib/vendor');

  list = require('postcss/lib/list');

  Transition = (function() {
    function Transition(prefixes) {
      this.prefixes = prefixes;
    }

    Transition.prototype.props = ['transition', 'transition-property'];

    Transition.prototype.add = function(decl, result) {
      var added, declPrefixes, j, k, l, len, len1, len2, names, operaClean, param, params, prefix, prefixValue, prefixed, prefixer, prop, ref, ref1, value, webkitClean;
      declPrefixes = ((ref = this.prefixes.add[decl.prop]) != null ? ref.prefixes : void 0) || [];
      params = this.parse(decl.value);
      names = params.map((function(_this) {
        return function(i) {
          return _this.findProp(i);
        };
      })(this));
      added = [];
      if (names.some(function(i) {
        return i[0] === '-';
      })) {
        return;
      }
      for (j = 0, len = params.length; j < len; j++) {
        param = params[j];
        prop = this.findProp(param);
        if (prop[0] === '-') {
          continue;
        }
        prefixer = this.prefixes.add[prop];
        if (!(prefixer != null ? prefixer.prefixes : void 0)) {
          continue;
        }
        ref1 = prefixer.prefixes;
        for (k = 0, len1 = ref1.length; k < len1; k++) {
          prefix = ref1[k];
          prefixed = this.prefixes.prefixed(prop, prefix);
          if (prefixed !== '-ms-transform' && names.indexOf(prefixed) === -1) {
            if (!this.disabled(prop, prefix)) {
              added.push(this.clone(prop, prefixed, param));
            }
          }
        }
      }
      params = params.concat(added);
      value = this.stringify(params);
      webkitClean = this.stringify(this.cleanFromUnprefixed(params, '-webkit-'));
      if (declPrefixes.indexOf('-webkit-') !== -1) {
        this.cloneBefore(decl, '-webkit-' + decl.prop, webkitClean);
      }
      this.cloneBefore(decl, decl.prop, webkitClean);
      if (declPrefixes.indexOf('-o-') !== -1) {
        operaClean = this.stringify(this.cleanFromUnprefixed(params, '-o-'));
        this.cloneBefore(decl, '-o-' + decl.prop, operaClean);
      }
      for (l = 0, len2 = declPrefixes.length; l < len2; l++) {
        prefix = declPrefixes[l];
        if (prefix !== '-webkit-' && prefix !== '-o-') {
          prefixValue = this.stringify(this.cleanOtherPrefixes(params, prefix));
          this.cloneBefore(decl, prefix + decl.prop, prefixValue);
        }
      }
      if (value !== decl.value && !this.already(decl, decl.prop, value)) {
        this.checkForWarning(result, decl);
        decl.cloneBefore();
        return decl.value = value;
      }
    };

    Transition.prototype.findProp = function(param) {
      var i, j, len, prop, token;
      prop = param[0].value;
      if (/^\d/.test(prop)) {
        for (i = j = 0, len = param.length; j < len; i = ++j) {
          token = param[i];
          if (i !== 0 && token.type === 'word') {
            return token.value;
          }
        }
      }
      return prop;
    };

    Transition.prototype.already = function(decl, prop, value) {
      return decl.parent.some(function(i) {
        return i.prop === prop && i.value === value;
      });
    };

    Transition.prototype.cloneBefore = function(decl, prop, value) {
      if (!this.already(decl, prop, value)) {
        return decl.cloneBefore({
          prop: prop,
          value: value
        });
      }
    };

    Transition.prototype.checkForWarning = function(result, decl) {
      if (decl.prop === 'transition-property') {
        return decl.parent.each(function(i) {
          if (i.type !== 'decl') {
            return;
          }
          if (i.prop.indexOf('transition-') !== 0) {
            return;
          }
          if (i.prop === 'transition-property') {
            return;
          }
          if (list.comma(i.value).length > 1) {
            decl.warn(result, 'Replace transition-property to transition, ' + 'because Autoprefixer could not support ' + 'any cases of transition-property ' + 'and other transition-*');
          }
          return false;
        });
      }
    };

    Transition.prototype.remove = function(decl) {
      var double, params, smaller, value;
      params = this.parse(decl.value);
      params = params.filter((function(_this) {
        return function(i) {
          var ref;
          return !((ref = _this.prefixes.remove[_this.findProp(i)]) != null ? ref.remove : void 0);
        };
      })(this));
      value = this.stringify(params);
      if (decl.value === value) {
        return;
      }
      if (params.length === 0) {
        decl.remove();
        return;
      }
      double = decl.parent.some(function(i) {
        return i.prop === decl.prop && i.value === value;
      });
      smaller = decl.parent.some(function(i) {
        return i !== decl && i.prop === decl.prop && i.value.length > value.length;
      });
      if (double || smaller) {
        return decl.remove();
      } else {
        return decl.value = value;
      }
    };

    Transition.prototype.parse = function(value) {
      var ast, j, len, node, param, ref, result;
      ast = parser(value);
      result = [];
      param = [];
      ref = ast.nodes;
      for (j = 0, len = ref.length; j < len; j++) {
        node = ref[j];
        param.push(node);
        if (node.type === 'div' && node.value === ',') {
          result.push(param);
          param = [];
        }
      }
      result.push(param);
      return result.filter(function(i) {
        return i.length > 0;
      });
    };

    Transition.prototype.stringify = function(params) {
      var j, len, nodes, param;
      if (params.length === 0) {
        return '';
      }
      nodes = [];
      for (j = 0, len = params.length; j < len; j++) {
        param = params[j];
        if (param[param.length - 1].type !== 'div') {
          param.push(this.div(params));
        }
        nodes = nodes.concat(param);
      }
      if (nodes[0].type === 'div') {
        nodes = nodes.slice(1);
      }
      if (nodes[nodes.length - 1].type === 'div') {
        nodes = nodes.slice(0, -1);
      }
      return parser.stringify({
        nodes: nodes
      });
    };

    Transition.prototype.clone = function(origin, name, param) {
      var changed, i, j, len, result;
      result = [];
      changed = false;
      for (j = 0, len = param.length; j < len; j++) {
        i = param[j];
        if (!changed && i.type === 'word' && i.value === origin) {
          result.push({
            type: 'word',
            value: name
          });
          changed = true;
        } else {
          result.push(i);
        }
      }
      return result;
    };

    Transition.prototype.div = function(params) {
      var j, k, len, len1, node, param;
      for (j = 0, len = params.length; j < len; j++) {
        param = params[j];
        for (k = 0, len1 = param.length; k < len1; k++) {
          node = param[k];
          if (node.type === 'div' && node.value === ',') {
            return node;
          }
        }
      }
      return {
        type: 'div',
        value: ',',
        after: ' '
      };
    };

    Transition.prototype.cleanOtherPrefixes = function(params, prefix) {
      return params.filter((function(_this) {
        return function(param) {
          var current;
          current = vendor.prefix(_this.findProp(param));
          return current === '' || current === prefix;
        };
      })(this));
    };

    Transition.prototype.cleanFromUnprefixed = function(params, prefix) {
      var j, len, p, param, prop, remove, result;
      result = [];
      remove = params.map((function(_this) {
        return function(i) {
          return _this.findProp(i);
        };
      })(this)).filter(function(i) {
        return i.slice(0, prefix.length) === prefix;
      }).map((function(_this) {
        return function(i) {
          return _this.prefixes.unprefixed(i);
        };
      })(this));
      for (j = 0, len = params.length; j < len; j++) {
        param = params[j];
        prop = this.findProp(param);
        p = vendor.prefix(prop);
        if (remove.indexOf(prop) === -1 && (p === prefix || p === '')) {
          result.push(param);
        }
      }
      return result;
    };

    Transition.prototype.disabled = function(prop, prefix) {
      var other;
      other = ['order', 'justify-content', 'align-self', 'align-content'];
      if (prop.indexOf('flex') !== -1 || other.indexOf(prop) !== -1) {
        if (this.prefixes.options.flexbox === false) {
          return true;
        } else if (this.prefixes.options.flexbox === 'no-2009') {
          return prefix.indexOf('2009') !== -1;
        }
      }
    };

    return Transition;

  })();

  module.exports = Transition;

}).call(this);

},{"postcss-value-parser":130,"postcss/lib/list":142,"postcss/lib/vendor":157}],58:[function(require,module,exports){
(function() {
  var list;

  list = require('postcss/lib/list');

  module.exports = {
    error: function(text) {
      var err;
      err = new Error(text);
      err.autoprefixer = true;
      throw err;
    },
    uniq: function(array) {
      var filtered, i, j, len;
      filtered = [];
      for (j = 0, len = array.length; j < len; j++) {
        i = array[j];
        if (filtered.indexOf(i) === -1) {
          filtered.push(i);
        }
      }
      return filtered;
    },
    removeNote: function(string) {
      if (string.indexOf(' ') === -1) {
        return string;
      } else {
        return string.split(' ')[0];
      }
    },
    escapeRegexp: function(string) {
      return string.replace(/[.?*+\^\$\[\]\\(){}|\-]/g, '\\$&');
    },
    regexp: function(word, escape) {
      if (escape == null) {
        escape = true;
      }
      if (escape) {
        word = this.escapeRegexp(word);
      }
      return RegExp("(^|[\\s,(])(" + word + "($|[\\s(,]))", "gi");
    },
    editList: function(value, callback) {
      var changed, join, origin;
      origin = list.comma(value);
      changed = callback(origin, []);
      if (origin === changed) {
        return value;
      } else {
        join = value.match(/,\s*/);
        join = join ? join[0] : ', ';
        return changed.join(join);
      }
    }
  };

}).call(this);

},{"postcss/lib/list":142}],59:[function(require,module,exports){
(function() {
  var OldValue, Prefixer, Value, utils, vendor,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;

  Prefixer = require('./prefixer');

  OldValue = require('./old-value');

  utils = require('./utils');

  vendor = require('postcss/lib/vendor');

  Value = (function(superClass) {
    extend(Value, superClass);

    function Value() {
      return Value.__super__.constructor.apply(this, arguments);
    }

    Value.save = function(prefixes, decl) {
      var already, cloned, prefix, prefixed, prop, propPrefix, ref, results, rule, trimmed, value;
      prop = decl.prop;
      ref = decl._autoprefixerValues;
      results = [];
      for (prefix in ref) {
        value = ref[prefix];
        if (value === decl.value) {
          continue;
        }
        propPrefix = vendor.prefix(prop);
        if (propPrefix === prefix) {
          results.push(decl.value = value);
        } else if (propPrefix === '-pie-') {
          continue;
        } else {
          prefixed = prefixes.prefixed(prop, prefix);
          rule = decl.parent;
          if (rule.every(function(i) {
            return i.prop !== prefixed;
          })) {
            trimmed = value.replace(/\s+/, ' ');
            already = rule.some(function(i) {
              return i.prop === decl.prop && i.value.replace(/\s+/, ' ') === trimmed;
            });
            if (!already) {
              cloned = this.clone(decl, {
                value: value
              });
              results.push(decl.parent.insertBefore(decl, cloned));
            } else {
              results.push(void 0);
            }
          } else {
            results.push(void 0);
          }
        }
      }
      return results;
    };

    Value.prototype.check = function(decl) {
      var value;
      value = decl.value;
      if (value.indexOf(this.name) !== -1) {
        return !!value.match(this.regexp());
      } else {
        return false;
      }
    };

    Value.prototype.regexp = function() {
      return this.regexpCache || (this.regexpCache = utils.regexp(this.name));
    };

    Value.prototype.replace = function(string, prefix) {
      return string.replace(this.regexp(), '$1' + prefix + '$2');
    };

    Value.prototype.value = function(decl) {
      if (decl.raws.value && decl.raws.value.value === decl.value) {
        return decl.raws.value.raw;
      } else {
        return decl.value;
      }
    };

    Value.prototype.add = function(decl, prefix) {
      var value;
      decl._autoprefixerValues || (decl._autoprefixerValues = {});
      value = decl._autoprefixerValues[prefix] || this.value(decl);
      value = this.replace(value, prefix);
      if (value) {
        return decl._autoprefixerValues[prefix] = value;
      }
    };

    Value.prototype.old = function(prefix) {
      return new OldValue(this.name, prefix + this.name);
    };

    return Value;

  })(Prefixer);

  module.exports = Value;

}).call(this);

},{"./old-value":50,"./prefixer":51,"./utils":58,"postcss/lib/vendor":157}],60:[function(require,module,exports){
'use strict';
module.exports = function () {
	return /[\u001b\u009b][[()#;?]*(?:[0-9]{1,4}(?:;[0-9]{0,4})*)?[0-9A-ORZcf-nqry=><]/g;
};

},{}],61:[function(require,module,exports){
'use strict';

function assembleStyles () {
	var styles = {
		modifiers: {
			reset: [0, 0],
			bold: [1, 22], // 21 isn't widely supported and 22 does the same thing
			dim: [2, 22],
			italic: [3, 23],
			underline: [4, 24],
			inverse: [7, 27],
			hidden: [8, 28],
			strikethrough: [9, 29]
		},
		colors: {
			black: [30, 39],
			red: [31, 39],
			green: [32, 39],
			yellow: [33, 39],
			blue: [34, 39],
			magenta: [35, 39],
			cyan: [36, 39],
			white: [37, 39],
			gray: [90, 39]
		},
		bgColors: {
			bgBlack: [40, 49],
			bgRed: [41, 49],
			bgGreen: [42, 49],
			bgYellow: [43, 49],
			bgBlue: [44, 49],
			bgMagenta: [45, 49],
			bgCyan: [46, 49],
			bgWhite: [47, 49]
		}
	};

	// fix humans
	styles.colors.grey = styles.colors.gray;

	Object.keys(styles).forEach(function (groupName) {
		var group = styles[groupName];

		Object.keys(group).forEach(function (styleName) {
			var style = group[styleName];

			styles[styleName] = group[styleName] = {
				open: '\u001b[' + style[0] + 'm',
				close: '\u001b[' + style[1] + 'm'
			};
		});

		Object.defineProperty(styles, groupName, {
			value: group,
			enumerable: false
		});
	});

	return styles;
}

Object.defineProperty(module, 'exports', {
	enumerable: true,
	get: assembleStyles
});

},{}],62:[function(require,module,exports){
'use strict'

exports.byteLength = byteLength
exports.toByteArray = toByteArray
exports.fromByteArray = fromByteArray

var lookup = []
var revLookup = []
var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array

var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
for (var i = 0, len = code.length; i < len; ++i) {
  lookup[i] = code[i]
  revLookup[code.charCodeAt(i)] = i
}

revLookup['-'.charCodeAt(0)] = 62
revLookup['_'.charCodeAt(0)] = 63

function placeHoldersCount (b64) {
  var len = b64.length
  if (len % 4 > 0) {
    throw new Error('Invalid string. Length must be a multiple of 4')
  }

  // the number of equal signs (place holders)
  // if there are two placeholders, than the two characters before it
  // represent one byte
  // if there is only one, then the three characters before it represent 2 bytes
  // this is just a cheap hack to not do indexOf twice
  return b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0
}

function byteLength (b64) {
  // base64 is 4/3 + up to two characters of the original data
  return b64.length * 3 / 4 - placeHoldersCount(b64)
}

function toByteArray (b64) {
  var i, j, l, tmp, placeHolders, arr
  var len = b64.length
  placeHolders = placeHoldersCount(b64)

  arr = new Arr(len * 3 / 4 - placeHolders)

  // if there are placeholders, only get up to the last complete 4 chars
  l = placeHolders > 0 ? len - 4 : len

  var L = 0

  for (i = 0, j = 0; i < l; i += 4, j += 3) {
    tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]
    arr[L++] = (tmp >> 16) & 0xFF
    arr[L++] = (tmp >> 8) & 0xFF
    arr[L++] = tmp & 0xFF
  }

  if (placeHolders === 2) {
    tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)
    arr[L++] = tmp & 0xFF
  } else if (placeHolders === 1) {
    tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)
    arr[L++] = (tmp >> 8) & 0xFF
    arr[L++] = tmp & 0xFF
  }

  return arr
}

function tripletToBase64 (num) {
  return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
}

function encodeChunk (uint8, start, end) {
  var tmp
  var output = []
  for (var i = start; i < end; i += 3) {
    tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
    output.push(tripletToBase64(tmp))
  }
  return output.join('')
}

function fromByteArray (uint8) {
  var tmp
  var len = uint8.length
  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
  var output = ''
  var parts = []
  var maxChunkLength = 16383 // must be multiple of 3

  // go through the array every three bytes, we'll deal with trailing stuff later
  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
    parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
  }

  // pad the end with zeros, but make sure to not forget the extra bytes
  if (extraBytes === 1) {
    tmp = uint8[len - 1]
    output += lookup[tmp >> 2]
    output += lookup[(tmp << 4) & 0x3F]
    output += '=='
  } else if (extraBytes === 2) {
    tmp = (uint8[len - 2] << 8) + (uint8[len - 1])
    output += lookup[tmp >> 10]
    output += lookup[(tmp >> 4) & 0x3F]
    output += lookup[(tmp << 2) & 0x3F]
    output += '='
  }

  parts.push(output)

  return parts.join('')
}

},{}],63:[function(require,module,exports){

},{}],64:[function(require,module,exports){
(function (process){
var caniuse = require('caniuse-db/data.json').agents;
var path    = require('path');
var fs      = require('fs');

var FLOAT = /^\d+(\.\d+)?$/;

function uniq(array) {
    var filtered = [];
    for ( var i = 0; i < array.length; i++ ) {
        if ( filtered.indexOf(array[i]) === -1 ) filtered.push(array[i]);
    }
    return filtered;
}

function BrowserslistError(message) {
    this.name = 'BrowserslistError';
    this.message = message || '';
    if ( Error.captureStackTrace ) {
        Error.captureStackTrace(this, BrowserslistError);
    }
}
BrowserslistError.prototype = Error.prototype;

function error(name) {
    var obj = new BrowserslistError(name);
    obj.browserslist = true;
    throw obj;
}

// Helpers

var normalize = function (versions) {
    return versions.filter(function (version) {
        return typeof version === 'string';
    });
};

var fillUsage = function (result, name, data) {
    for ( var i in data ) {
        result[name + ' ' + i] = data[i];
    }
};

// Return array of browsers by selection queries:
//
//   browserslist('IE >= 10, IE 8') //=> ['ie 11', 'ie 10', 'ie 8']
var browserslist = function (selections, opts) {
    if ( typeof opts === 'undefined' ) opts = { };

    if ( typeof selections === 'undefined' || selections === null ) {

        if ( process.env.BROWSERSLIST ) {
            selections = process.env.BROWSERSLIST;
        } else if ( opts.config || process.env.BROWSERSLIST_CONFIG ) {
            var file = opts.config || process.env.BROWSERSLIST_CONFIG;
            if ( fs.existsSync(file) && fs.statSync(file).isFile() ) {
                selections = browserslist.parseConfig( fs.readFileSync(file) );
            } else {
                error('Can\'t read ' + file + ' config');
            }
        } else {
            var config = browserslist.readConfig(opts.path);
            if ( config !== false ) {
                selections = config;
            } else {
                selections = browserslist.defaults;
            }
        }
    }

    if ( typeof selections === 'string' ) {
        selections = selections.split(/,\s*/);
    }

    if ( opts.stats || process.env.BROWSERSLIST_STATS ) {
        browserslist.usage.custom = { };
        var stats = opts.stats || process.env.BROWSERSLIST_STATS;
        if ( typeof stats === 'string' ) {
            try {
                stats = JSON.parse(fs.readFileSync(stats));
            } catch (e) {
                error('Can\'t read ' + stats);
            }
        }
        if ( 'dataByBrowser' in stats ) {
            // Allow to use the data as-is from the caniuse.com website
            stats = stats.dataByBrowser;
        }
        for ( var browser in stats ) {
            fillUsage(browserslist.usage.custom, browser, stats[browser]);
        }
    }

    var result = [];

    var exclude, query, match, array, used;
    selections.forEach(function (selection) {
        if ( selection.trim() === '' ) return;
        exclude = false;
        used    = false;

        if ( selection.indexOf('not ') === 0 ) {
            selection = selection.slice(4);
            exclude   = true;
        }

        for ( var i in browserslist.queries ) {
            query = browserslist.queries[i];
            match = selection.match(query.regexp);
            if ( match ) {
                array = query.select.apply(browserslist, match.slice(1));
                if ( exclude ) {
                    result = result.filter(function (j) {
                        return array.indexOf(j) === -1;
                    });
                } else {
                    result = result.concat(array);
                }
                used   = true;
                break;
            }
        }

        if ( !used ) {
            error('Unknown browser query `' + selection + '`');
        }
    });

    result = uniq(result);

    return result.filter(function (i) {
        var version = i.split(' ')[1];
        if ( version === '0' ) {
            var name = i.split(' ')[0];
            return !result.some(function (j) {
                return j !== i && j.split(' ')[0] === name;
            });
        } else {
            return true;
        }
    }).sort(function (name1, name2) {
        name1 = name1.split(' ');
        name2 = name2.split(' ');
        if ( name1[0] === name2[0] ) {
            if ( FLOAT.test(name1[1]) && FLOAT.test(name2[1]) ) {
                var d = parseFloat(name2[1]) - parseFloat(name1[1]);
                if ( d > 0 ) {
                    return 1;
                } else if ( d < 0 ) {
                    return -1;
                } else {
                    return 0;
                }
            } else {
                return name2[1].localeCompare(name1[1]);
            }
        } else {
            return name1[0].localeCompare(name2[0]);
        }
    });
};

var normalizeVersion = function (data, version) {
    if ( data.versions.indexOf(version) !== -1 ) {
        return version;
    } else {
        return browserslist.versionAliases[data.name][version];
    }
};

var loadCountryStatistics = function (country) {
    if (!browserslist.usage[country]) {
        var usage = { };
        var data = require(
            'caniuse-db/region-usage-json/' + country + '.json');
        for ( var i in data.data ) {
            fillUsage(usage, i, data.data[i]);
        }
        browserslist.usage[country] = usage;
    }
};

// Will be filled by Can I Use data below
browserslist.data  = { };
browserslist.usage = {
    global: { },
    custom: null
};

// Default browsers query
browserslist.defaults = [
    '> 1%',
    'last 2 versions',
    'Firefox ESR'
];

// What browsers will be used in `last n version` query
browserslist.major = ['safari', 'opera', 'ios_saf', 'ie_mob', 'ie',
                      'edge', 'firefox', 'chrome'];

// Browser names aliases
browserslist.aliases = {
    fx:             'firefox',
    ff:             'firefox',
    ios:            'ios_saf',
    explorer:       'ie',
    blackberry:     'bb',
    explorermobile: 'ie_mob',
    operamini:      'op_mini',
    operamobile:    'op_mob',
    chromeandroid:  'and_chr',
    firefoxandroid: 'and_ff',
    ucandroid:      'and_uc'
};

// Aliases to work with joined versions like `ios_saf 7.0-7.1`
browserslist.versionAliases = { };

// Get browser data by alias or case insensitive name
browserslist.byName = function (name) {
    name = name.toLowerCase();
    name = browserslist.aliases[name] || name;
    return browserslist.data[name];
};

// Get browser data by alias or case insensitive name and throw error
// on unknown browser
browserslist.checkName = function (name) {
    var data = browserslist.byName(name);
    if ( !data ) error('Unknown browser ' + name);
    return data;
};

// Find config, read file and parse it
browserslist.readConfig = function (from) {
    if ( from === false )   return false;
    if ( !fs.readFileSync || !fs.existsSync || !fs.statSync ) return false;
    if ( typeof from === 'undefined' ) from = '.';

    var dirs = path.resolve(from).split(path.sep);
    var config;
    while ( dirs.length ) {
        config = dirs.concat(['browserslist']).join(path.sep);

        if ( fs.existsSync(config) && fs.statSync(config).isFile() ) {
            return browserslist.parseConfig( fs.readFileSync(config) );
        }

        dirs.pop();
    }

    return false;
};

// Return browsers market coverage
browserslist.coverage = function (browsers, country) {
    if (country && country !== 'global') {
        country = country.toUpperCase();
        loadCountryStatistics(country);
    } else {
        country = 'global'; // Default value
    }

    return browsers.reduce(function (all, i) {
        var usage = browserslist.usage[country][i];
        if (usage === undefined) {
            // Sometimes, Caniuse consolidates country usage data into a single
            // "version 0" entry. This is usually when there is only 1 version.
            usage = browserslist.usage[country][i.replace(/ [\d.]+$/, ' 0')];
        }
        return all + (usage || 0);
    }, 0);
};

// Return array of queries from config content
browserslist.parseConfig = function (string) {
    return string.toString()
            .replace(/#[^\n]*/g, '')
            .split(/\n/)
            .map(function (i) {
                return i.trim();
            }).filter(function (i) {
                return i !== '';
            });
};

browserslist.queries = {

    lastVersions: {
        regexp: /^last\s+(\d+)\s+versions?$/i,
        select: function (versions) {
            var selected = [];
            browserslist.major.forEach(function (name) {
                var data  = browserslist.byName(name);
                if ( !data ) return;
                var array = data.released.slice(-versions);

                array = array.map(function (v) {
                    return data.name + ' ' + v;
                });
                selected = selected.concat(array);
            });
            return selected;
        }
    },

    lastByBrowser: {
        regexp: /^last\s+(\d+)\s+(\w+)\s+versions?$/i,
        select: function (versions, name) {
            var data = browserslist.checkName(name);
            return data.released.slice(-versions).map(function (v) {
                return data.name + ' ' + v;
            });
        }
    },

    globalStatistics: {
        regexp: /^>\s*(\d*\.?\d+)%$/,
        select: function (popularity) {
            popularity = parseFloat(popularity);
            var result = [];

            for ( var version in browserslist.usage.global ) {
                if ( browserslist.usage.global[version] > popularity ) {
                    result.push(version);
                }
            }

            return result;
        }
    },

    customStatistics: {
        regexp: /^>\s*(\d*\.?\d+)%\s+in\s+my\s+stats$/,
        select: function (popularity) {
            popularity = parseFloat(popularity);
            var result = [];

            var usage = browserslist.usage.custom;
            if ( !usage ) {
                error('Custom usage statistics was not provided');
            }

            for ( var version in usage ) {
                if ( usage[version] > popularity ) {
                    result.push(version);
                }
            }

            return result;
        }
    },

    countryStatistics: {
        regexp: /^>\s*(\d*\.?\d+)%\s+in\s+(\w\w)$/,
        select: function (popularity, country) {
            popularity = parseFloat(popularity);
            country    = country.toUpperCase();
            var result = [];

            loadCountryStatistics(country);
            var usage = browserslist.usage[country];

            for ( var version in usage ) {
                if ( usage[version] > popularity ) {
                    result.push(version);
                }
            }

            return result;
        }
    },

    range: {
        regexp: /^(\w+)\s+([\d\.]+)\s*-\s*([\d\.]+)$/i,
        select: function (name, from, to) {
            var data = browserslist.checkName(name);
            from = parseFloat(normalizeVersion(data, from) || from);
            to = parseFloat(normalizeVersion(data, to) || to);

            var filter = function (v) {
                var parsed = parseFloat(v);
                return parsed >= from && parsed <= to;
            };

            return data.released.filter(filter).map(function (v) {
                return data.name + ' ' + v;
            });
        }
    },

    versions: {
        regexp: /^(\w+)\s*(>=?|<=?)\s*([\d\.]+)$/,
        select: function (name, sign, version) {
            var data = browserslist.checkName(name);
            var alias = normalizeVersion(data, version);
            if ( alias ) {
                version = alias;
            }
            version = parseFloat(version);

            var filter;
            if ( sign === '>' ) {
                filter = function (v) {
                    return parseFloat(v) > version;
                };
            } else if ( sign === '>=' ) {
                filter = function (v) {
                    return parseFloat(v) >= version;
                };
            } else if ( sign === '<' ) {
                filter = function (v) {
                    return parseFloat(v) < version;
                };
            } else if ( sign === '<=' ) {
                filter = function (v) {
                    return parseFloat(v) <= version;
                };
            }
            return data.released.filter(filter).map(function (v) {
                return data.name + ' ' + v;
            });
        }
    },

    esr: {
        regexp: /^(firefox|ff|fx)\s+esr$/i,
        select: function () {
            return ['firefox 45'];
        }
    },

    opMini: {
        regexp: /(operamini|op_mini)\s+all/i,
        select: function () {
            return ['op_mini all'];
        }
    },

    direct: {
        regexp: /^(\w+)\s+(tp|[\d\.]+)$/i,
        select: function (name, version) {
            if ( /tp/i.test(version) ) version = 'TP';
            var data  = browserslist.checkName(name);
            var alias = normalizeVersion(data, version);
            if ( alias ) {
                version = alias;
            } else {
                if ( version.indexOf('.') === -1 ) {
                    alias = version + '.0';
                } else if ( /\.0$/.test(version) ) {
                    alias = version.replace(/\.0$/, '');
                }
                alias = normalizeVersion(data, alias);
                if ( alias ) {
                    version = alias;
                } else {
                    error('Unknown version ' + version + ' of ' + name);
                }
            }
            return [data.name + ' ' + version];
        }
    },

    defaults: {
        regexp: /^defaults$/i,
        select: function () {
            return browserslist(browserslist.defaults);
        }
    }

};

// Get and convert Can I Use data

(function () {
    for ( var name in caniuse ) {
        browserslist.data[name] = {
            name:     name,
            versions: normalize(caniuse[name].versions),
            released: normalize(caniuse[name].versions.slice(0, -3))
        };
        fillUsage(browserslist.usage.global, name, caniuse[name].usage_global);

        browserslist.versionAliases[name] = { };
        for ( var i = 0; i < caniuse[name].versions.length; i++ ) {
            if ( !caniuse[name].versions[i] ) continue;
            var full = caniuse[name].versions[i];

            if ( full.indexOf('-') !== -1 ) {
                var interval = full.split('-');
                for ( var j = 0; j < interval.length; j++ ) {
                    browserslist.versionAliases[name][interval[j]] = full;
                }
            }
        }
    }
}());

module.exports = browserslist;

}).call(this,require('_process'))
},{"_process":160,"caniuse-db/data.json":66,"fs":63,"path":129}],65:[function(require,module,exports){
(function (global){
/*!
 * The buffer module from node.js, for the browser.
 *
 * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
 * @license  MIT
 */
/* eslint-disable no-proto */

'use strict'

var base64 = require('base64-js')
var ieee754 = require('ieee754')
var isArray = require('isarray')

exports.Buffer = Buffer
exports.SlowBuffer = SlowBuffer
exports.INSPECT_MAX_BYTES = 50

/**
 * If `Buffer.TYPED_ARRAY_SUPPORT`:
 *   === true    Use Uint8Array implementation (fastest)
 *   === false   Use Object implementation (most compatible, even IE6)
 *
 * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
 * Opera 11.6+, iOS 4.2+.
 *
 * Due to various browser bugs, sometimes the Object implementation will be used even
 * when the browser supports typed arrays.
 *
 * Note:
 *
 *   - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,
 *     See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.
 *
 *   - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.
 *
 *   - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of
 *     incorrect length in some situations.

 * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they
 * get the Object implementation, which is slower but behaves correctly.
 */
Buffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined
  ? global.TYPED_ARRAY_SUPPORT
  : typedArraySupport()

/*
 * Export kMaxLength after typed array support is determined.
 */
exports.kMaxLength = kMaxLength()

function typedArraySupport () {
  try {
    var arr = new Uint8Array(1)
    arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}
    return arr.foo() === 42 && // typed array instances can be augmented
        typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`
        arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`
  } catch (e) {
    return false
  }
}

function kMaxLength () {
  return Buffer.TYPED_ARRAY_SUPPORT
    ? 0x7fffffff
    : 0x3fffffff
}

function createBuffer (that, length) {
  if (kMaxLength() < length) {
    throw new RangeError('Invalid typed array length')
  }
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    // Return an augmented `Uint8Array` instance, for best performance
    that = new Uint8Array(length)
    that.__proto__ = Buffer.prototype
  } else {
    // Fallback: Return an object instance of the Buffer class
    if (that === null) {
      that = new Buffer(length)
    }
    that.length = length
  }

  return that
}

/**
 * The Buffer constructor returns instances of `Uint8Array` that have their
 * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
 * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
 * and the `Uint8Array` methods. Square bracket notation works as expected -- it
 * returns a single octet.
 *
 * The `Uint8Array` prototype remains unmodified.
 */

function Buffer (arg, encodingOrOffset, length) {
  if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {
    return new Buffer(arg, encodingOrOffset, length)
  }

  // Common case.
  if (typeof arg === 'number') {
    if (typeof encodingOrOffset === 'string') {
      throw new Error(
        'If encoding is specified then the first argument must be a string'
      )
    }
    return allocUnsafe(this, arg)
  }
  return from(this, arg, encodingOrOffset, length)
}

Buffer.poolSize = 8192 // not used by this implementation

// TODO: Legacy, not needed anymore. Remove in next major version.
Buffer._augment = function (arr) {
  arr.__proto__ = Buffer.prototype
  return arr
}

function from (that, value, encodingOrOffset, length) {
  if (typeof value === 'number') {
    throw new TypeError('"value" argument must not be a number')
  }

  if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
    return fromArrayBuffer(that, value, encodingOrOffset, length)
  }

  if (typeof value === 'string') {
    return fromString(that, value, encodingOrOffset)
  }

  return fromObject(that, value)
}

/**
 * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
 * if value is a number.
 * Buffer.from(str[, encoding])
 * Buffer.from(array)
 * Buffer.from(buffer)
 * Buffer.from(arrayBuffer[, byteOffset[, length]])
 **/
Buffer.from = function (value, encodingOrOffset, length) {
  return from(null, value, encodingOrOffset, length)
}

if (Buffer.TYPED_ARRAY_SUPPORT) {
  Buffer.prototype.__proto__ = Uint8Array.prototype
  Buffer.__proto__ = Uint8Array
  if (typeof Symbol !== 'undefined' && Symbol.species &&
      Buffer[Symbol.species] === Buffer) {
    // Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
    Object.defineProperty(Buffer, Symbol.species, {
      value: null,
      configurable: true
    })
  }
}

function assertSize (size) {
  if (typeof size !== 'number') {
    throw new TypeError('"size" argument must be a number')
  } else if (size < 0) {
    throw new RangeError('"size" argument must not be negative')
  }
}

function alloc (that, size, fill, encoding) {
  assertSize(size)
  if (size <= 0) {
    return createBuffer(that, size)
  }
  if (fill !== undefined) {
    // Only pay attention to encoding if it's a string. This
    // prevents accidentally sending in a number that would
    // be interpretted as a start offset.
    return typeof encoding === 'string'
      ? createBuffer(that, size).fill(fill, encoding)
      : createBuffer(that, size).fill(fill)
  }
  return createBuffer(that, size)
}

/**
 * Creates a new filled Buffer instance.
 * alloc(size[, fill[, encoding]])
 **/
Buffer.alloc = function (size, fill, encoding) {
  return alloc(null, size, fill, encoding)
}

function allocUnsafe (that, size) {
  assertSize(size)
  that = createBuffer(that, size < 0 ? 0 : checked(size) | 0)
  if (!Buffer.TYPED_ARRAY_SUPPORT) {
    for (var i = 0; i < size; ++i) {
      that[i] = 0
    }
  }
  return that
}

/**
 * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
 * */
Buffer.allocUnsafe = function (size) {
  return allocUnsafe(null, size)
}
/**
 * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
 */
Buffer.allocUnsafeSlow = function (size) {
  return allocUnsafe(null, size)
}

function fromString (that, string, encoding) {
  if (typeof encoding !== 'string' || encoding === '') {
    encoding = 'utf8'
  }

  if (!Buffer.isEncoding(encoding)) {
    throw new TypeError('"encoding" must be a valid string encoding')
  }

  var length = byteLength(string, encoding) | 0
  that = createBuffer(that, length)

  var actual = that.write(string, encoding)

  if (actual !== length) {
    // Writing a hex string, for example, that contains invalid characters will
    // cause everything after the first invalid character to be ignored. (e.g.
    // 'abxxcd' will be treated as 'ab')
    that = that.slice(0, actual)
  }

  return that
}

function fromArrayLike (that, array) {
  var length = array.length < 0 ? 0 : checked(array.length) | 0
  that = createBuffer(that, length)
  for (var i = 0; i < length; i += 1) {
    that[i] = array[i] & 255
  }
  return that
}

function fromArrayBuffer (that, array, byteOffset, length) {
  array.byteLength // this throws if `array` is not a valid ArrayBuffer

  if (byteOffset < 0 || array.byteLength < byteOffset) {
    throw new RangeError('\'offset\' is out of bounds')
  }

  if (array.byteLength < byteOffset + (length || 0)) {
    throw new RangeError('\'length\' is out of bounds')
  }

  if (byteOffset === undefined && length === undefined) {
    array = new Uint8Array(array)
  } else if (length === undefined) {
    array = new Uint8Array(array, byteOffset)
  } else {
    array = new Uint8Array(array, byteOffset, length)
  }

  if (Buffer.TYPED_ARRAY_SUPPORT) {
    // Return an augmented `Uint8Array` instance, for best performance
    that = array
    that.__proto__ = Buffer.prototype
  } else {
    // Fallback: Return an object instance of the Buffer class
    that = fromArrayLike(that, array)
  }
  return that
}

function fromObject (that, obj) {
  if (Buffer.isBuffer(obj)) {
    var len = checked(obj.length) | 0
    that = createBuffer(that, len)

    if (that.length === 0) {
      return that
    }

    obj.copy(that, 0, 0, len)
    return that
  }

  if (obj) {
    if ((typeof ArrayBuffer !== 'undefined' &&
        obj.buffer instanceof ArrayBuffer) || 'length' in obj) {
      if (typeof obj.length !== 'number' || isnan(obj.length)) {
        return createBuffer(that, 0)
      }
      return fromArrayLike(that, obj)
    }

    if (obj.type === 'Buffer' && isArray(obj.data)) {
      return fromArrayLike(that, obj.data)
    }
  }

  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
}

function checked (length) {
  // Note: cannot use `length < kMaxLength()` here because that fails when
  // length is NaN (which is otherwise coerced to zero.)
  if (length >= kMaxLength()) {
    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
                         'size: 0x' + kMaxLength().toString(16) + ' bytes')
  }
  return length | 0
}

function SlowBuffer (length) {
  if (+length != length) { // eslint-disable-line eqeqeq
    length = 0
  }
  return Buffer.alloc(+length)
}

Buffer.isBuffer = function isBuffer (b) {
  return !!(b != null && b._isBuffer)
}

Buffer.compare = function compare (a, b) {
  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
    throw new TypeError('Arguments must be Buffers')
  }

  if (a === b) return 0

  var x = a.length
  var y = b.length

  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
    if (a[i] !== b[i]) {
      x = a[i]
      y = b[i]
      break
    }
  }

  if (x < y) return -1
  if (y < x) return 1
  return 0
}

Buffer.isEncoding = function isEncoding (encoding) {
  switch (String(encoding).toLowerCase()) {
    case 'hex':
    case 'utf8':
    case 'utf-8':
    case 'ascii':
    case 'latin1':
    case 'binary':
    case 'base64':
    case 'ucs2':
    case 'ucs-2':
    case 'utf16le':
    case 'utf-16le':
      return true
    default:
      return false
  }
}

Buffer.concat = function concat (list, length) {
  if (!isArray(list)) {
    throw new TypeError('"list" argument must be an Array of Buffers')
  }

  if (list.length === 0) {
    return Buffer.alloc(0)
  }

  var i
  if (length === undefined) {
    length = 0
    for (i = 0; i < list.length; ++i) {
      length += list[i].length
    }
  }

  var buffer = Buffer.allocUnsafe(length)
  var pos = 0
  for (i = 0; i < list.length; ++i) {
    var buf = list[i]
    if (!Buffer.isBuffer(buf)) {
      throw new TypeError('"list" argument must be an Array of Buffers')
    }
    buf.copy(buffer, pos)
    pos += buf.length
  }
  return buffer
}

function byteLength (string, encoding) {
  if (Buffer.isBuffer(string)) {
    return string.length
  }
  if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&
      (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {
    return string.byteLength
  }
  if (typeof string !== 'string') {
    string = '' + string
  }

  var len = string.length
  if (len === 0) return 0

  // Use a for loop to avoid recursion
  var loweredCase = false
  for (;;) {
    switch (encoding) {
      case 'ascii':
      case 'latin1':
      case 'binary':
        return len
      case 'utf8':
      case 'utf-8':
      case undefined:
        return utf8ToBytes(string).length
      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return len * 2
      case 'hex':
        return len >>> 1
      case 'base64':
        return base64ToBytes(string).length
      default:
        if (loweredCase) return utf8ToBytes(string).length // assume utf8
        encoding = ('' + encoding).toLowerCase()
        loweredCase = true
    }
  }
}
Buffer.byteLength = byteLength

function slowToString (encoding, start, end) {
  var loweredCase = false

  // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
  // property of a typed array.

  // This behaves neither like String nor Uint8Array in that we set start/end
  // to their upper/lower bounds if the value passed is out of range.
  // undefined is handled specially as per ECMA-262 6th Edition,
  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
  if (start === undefined || start < 0) {
    start = 0
  }
  // Return early if start > this.length. Done here to prevent potential uint32
  // coercion fail below.
  if (start > this.length) {
    return ''
  }

  if (end === undefined || end > this.length) {
    end = this.length
  }

  if (end <= 0) {
    return ''
  }

  // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
  end >>>= 0
  start >>>= 0

  if (end <= start) {
    return ''
  }

  if (!encoding) encoding = 'utf8'

  while (true) {
    switch (encoding) {
      case 'hex':
        return hexSlice(this, start, end)

      case 'utf8':
      case 'utf-8':
        return utf8Slice(this, start, end)

      case 'ascii':
        return asciiSlice(this, start, end)

      case 'latin1':
      case 'binary':
        return latin1Slice(this, start, end)

      case 'base64':
        return base64Slice(this, start, end)

      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return utf16leSlice(this, start, end)

      default:
        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
        encoding = (encoding + '').toLowerCase()
        loweredCase = true
    }
  }
}

// The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect
// Buffer instances.
Buffer.prototype._isBuffer = true

function swap (b, n, m) {
  var i = b[n]
  b[n] = b[m]
  b[m] = i
}

Buffer.prototype.swap16 = function swap16 () {
  var len = this.length
  if (len % 2 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 16-bits')
  }
  for (var i = 0; i < len; i += 2) {
    swap(this, i, i + 1)
  }
  return this
}

Buffer.prototype.swap32 = function swap32 () {
  var len = this.length
  if (len % 4 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 32-bits')
  }
  for (var i = 0; i < len; i += 4) {
    swap(this, i, i + 3)
    swap(this, i + 1, i + 2)
  }
  return this
}

Buffer.prototype.swap64 = function swap64 () {
  var len = this.length
  if (len % 8 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 64-bits')
  }
  for (var i = 0; i < len; i += 8) {
    swap(this, i, i + 7)
    swap(this, i + 1, i + 6)
    swap(this, i + 2, i + 5)
    swap(this, i + 3, i + 4)
  }
  return this
}

Buffer.prototype.toString = function toString () {
  var length = this.length | 0
  if (length === 0) return ''
  if (arguments.length === 0) return utf8Slice(this, 0, length)
  return slowToString.apply(this, arguments)
}

Buffer.prototype.equals = function equals (b) {
  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
  if (this === b) return true
  return Buffer.compare(this, b) === 0
}

Buffer.prototype.inspect = function inspect () {
  var str = ''
  var max = exports.INSPECT_MAX_BYTES
  if (this.length > 0) {
    str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
    if (this.length > max) str += ' ... '
  }
  return '<Buffer ' + str + '>'
}

Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
  if (!Buffer.isBuffer(target)) {
    throw new TypeError('Argument must be a Buffer')
  }

  if (start === undefined) {
    start = 0
  }
  if (end === undefined) {
    end = target ? target.length : 0
  }
  if (thisStart === undefined) {
    thisStart = 0
  }
  if (thisEnd === undefined) {
    thisEnd = this.length
  }

  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
    throw new RangeError('out of range index')
  }

  if (thisStart >= thisEnd && start >= end) {
    return 0
  }
  if (thisStart >= thisEnd) {
    return -1
  }
  if (start >= end) {
    return 1
  }

  start >>>= 0
  end >>>= 0
  thisStart >>>= 0
  thisEnd >>>= 0

  if (this === target) return 0

  var x = thisEnd - thisStart
  var y = end - start
  var len = Math.min(x, y)

  var thisCopy = this.slice(thisStart, thisEnd)
  var targetCopy = target.slice(start, end)

  for (var i = 0; i < len; ++i) {
    if (thisCopy[i] !== targetCopy[i]) {
      x = thisCopy[i]
      y = targetCopy[i]
      break
    }
  }

  if (x < y) return -1
  if (y < x) return 1
  return 0
}

// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
//
// Arguments:
// - buffer - a Buffer to search
// - val - a string, Buffer, or number
// - byteOffset - an index into `buffer`; will be clamped to an int32
// - encoding - an optional encoding, relevant is val is a string
// - dir - true for indexOf, false for lastIndexOf
function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
  // Empty buffer means no match
  if (buffer.length === 0) return -1

  // Normalize byteOffset
  if (typeof byteOffset === 'string') {
    encoding = byteOffset
    byteOffset = 0
  } else if (byteOffset > 0x7fffffff) {
    byteOffset = 0x7fffffff
  } else if (byteOffset < -0x80000000) {
    byteOffset = -0x80000000
  }
  byteOffset = +byteOffset  // Coerce to Number.
  if (isNaN(byteOffset)) {
    // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
    byteOffset = dir ? 0 : (buffer.length - 1)
  }

  // Normalize byteOffset: negative offsets start from the end of the buffer
  if (byteOffset < 0) byteOffset = buffer.length + byteOffset
  if (byteOffset >= buffer.length) {
    if (dir) return -1
    else byteOffset = buffer.length - 1
  } else if (byteOffset < 0) {
    if (dir) byteOffset = 0
    else return -1
  }

  // Normalize val
  if (typeof val === 'string') {
    val = Buffer.from(val, encoding)
  }

  // Finally, search either indexOf (if dir is true) or lastIndexOf
  if (Buffer.isBuffer(val)) {
    // Special case: looking for empty string/buffer always fails
    if (val.length === 0) {
      return -1
    }
    return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
  } else if (typeof val === 'number') {
    val = val & 0xFF // Search for a byte value [0-255]
    if (Buffer.TYPED_ARRAY_SUPPORT &&
        typeof Uint8Array.prototype.indexOf === 'function') {
      if (dir) {
        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
      } else {
        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
      }
    }
    return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
  }

  throw new TypeError('val must be string, number or Buffer')
}

function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
  var indexSize = 1
  var arrLength = arr.length
  var valLength = val.length

  if (encoding !== undefined) {
    encoding = String(encoding).toLowerCase()
    if (encoding === 'ucs2' || encoding === 'ucs-2' ||
        encoding === 'utf16le' || encoding === 'utf-16le') {
      if (arr.length < 2 || val.length < 2) {
        return -1
      }
      indexSize = 2
      arrLength /= 2
      valLength /= 2
      byteOffset /= 2
    }
  }

  function read (buf, i) {
    if (indexSize === 1) {
      return buf[i]
    } else {
      return buf.readUInt16BE(i * indexSize)
    }
  }

  var i
  if (dir) {
    var foundIndex = -1
    for (i = byteOffset; i < arrLength; i++) {
      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
        if (foundIndex === -1) foundIndex = i
        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
      } else {
        if (foundIndex !== -1) i -= i - foundIndex
        foundIndex = -1
      }
    }
  } else {
    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
    for (i = byteOffset; i >= 0; i--) {
      var found = true
      for (var j = 0; j < valLength; j++) {
        if (read(arr, i + j) !== read(val, j)) {
          found = false
          break
        }
      }
      if (found) return i
    }
  }

  return -1
}

Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
  return this.indexOf(val, byteOffset, encoding) !== -1
}

Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
  return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
}

Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
  return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
}

function hexWrite (buf, string, offset, length) {
  offset = Number(offset) || 0
  var remaining = buf.length - offset
  if (!length) {
    length = remaining
  } else {
    length = Number(length)
    if (length > remaining) {
      length = remaining
    }
  }

  // must be an even number of digits
  var strLen = string.length
  if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')

  if (length > strLen / 2) {
    length = strLen / 2
  }
  for (var i = 0; i < length; ++i) {
    var parsed = parseInt(string.substr(i * 2, 2), 16)
    if (isNaN(parsed)) return i
    buf[offset + i] = parsed
  }
  return i
}

function utf8Write (buf, string, offset, length) {
  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
}

function asciiWrite (buf, string, offset, length) {
  return blitBuffer(asciiToBytes(string), buf, offset, length)
}

function latin1Write (buf, string, offset, length) {
  return asciiWrite(buf, string, offset, length)
}

function base64Write (buf, string, offset, length) {
  return blitBuffer(base64ToBytes(string), buf, offset, length)
}

function ucs2Write (buf, string, offset, length) {
  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
}

Buffer.prototype.write = function write (string, offset, length, encoding) {
  // Buffer#write(string)
  if (offset === undefined) {
    encoding = 'utf8'
    length = this.length
    offset = 0
  // Buffer#write(string, encoding)
  } else if (length === undefined && typeof offset === 'string') {
    encoding = offset
    length = this.length
    offset = 0
  // Buffer#write(string, offset[, length][, encoding])
  } else if (isFinite(offset)) {
    offset = offset | 0
    if (isFinite(length)) {
      length = length | 0
      if (encoding === undefined) encoding = 'utf8'
    } else {
      encoding = length
      length = undefined
    }
  // legacy write(string, encoding, offset, length) - remove in v0.13
  } else {
    throw new Error(
      'Buffer.write(string, encoding, offset[, length]) is no longer supported'
    )
  }

  var remaining = this.length - offset
  if (length === undefined || length > remaining) length = remaining

  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
    throw new RangeError('Attempt to write outside buffer bounds')
  }

  if (!encoding) encoding = 'utf8'

  var loweredCase = false
  for (;;) {
    switch (encoding) {
      case 'hex':
        return hexWrite(this, string, offset, length)

      case 'utf8':
      case 'utf-8':
        return utf8Write(this, string, offset, length)

      case 'ascii':
        return asciiWrite(this, string, offset, length)

      case 'latin1':
      case 'binary':
        return latin1Write(this, string, offset, length)

      case 'base64':
        // Warning: maxLength not taken into account in base64Write
        return base64Write(this, string, offset, length)

      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return ucs2Write(this, string, offset, length)

      default:
        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
        encoding = ('' + encoding).toLowerCase()
        loweredCase = true
    }
  }
}

Buffer.prototype.toJSON = function toJSON () {
  return {
    type: 'Buffer',
    data: Array.prototype.slice.call(this._arr || this, 0)
  }
}

function base64Slice (buf, start, end) {
  if (start === 0 && end === buf.length) {
    return base64.fromByteArray(buf)
  } else {
    return base64.fromByteArray(buf.slice(start, end))
  }
}

function utf8Slice (buf, start, end) {
  end = Math.min(buf.length, end)
  var res = []

  var i = start
  while (i < end) {
    var firstByte = buf[i]
    var codePoint = null
    var bytesPerSequence = (firstByte > 0xEF) ? 4
      : (firstByte > 0xDF) ? 3
      : (firstByte > 0xBF) ? 2
      : 1

    if (i + bytesPerSequence <= end) {
      var secondByte, thirdByte, fourthByte, tempCodePoint

      switch (bytesPerSequence) {
        case 1:
          if (firstByte < 0x80) {
            codePoint = firstByte
          }
          break
        case 2:
          secondByte = buf[i + 1]
          if ((secondByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
            if (tempCodePoint > 0x7F) {
              codePoint = tempCodePoint
            }
          }
          break
        case 3:
          secondByte = buf[i + 1]
          thirdByte = buf[i + 2]
          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
              codePoint = tempCodePoint
            }
          }
          break
        case 4:
          secondByte = buf[i + 1]
          thirdByte = buf[i + 2]
          fourthByte = buf[i + 3]
          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
              codePoint = tempCodePoint
            }
          }
      }
    }

    if (codePoint === null) {
      // we did not generate a valid codePoint so insert a
      // replacement char (U+FFFD) and advance only 1 byte
      codePoint = 0xFFFD
      bytesPerSequence = 1
    } else if (codePoint > 0xFFFF) {
      // encode to utf16 (surrogate pair dance)
      codePoint -= 0x10000
      res.push(codePoint >>> 10 & 0x3FF | 0xD800)
      codePoint = 0xDC00 | codePoint & 0x3FF
    }

    res.push(codePoint)
    i += bytesPerSequence
  }

  return decodeCodePointsArray(res)
}

// Based on http://stackoverflow.com/a/22747272/680742, the browser with
// the lowest limit is Chrome, with 0x10000 args.
// We go 1 magnitude less, for safety
var MAX_ARGUMENTS_LENGTH = 0x1000

function decodeCodePointsArray (codePoints) {
  var len = codePoints.length
  if (len <= MAX_ARGUMENTS_LENGTH) {
    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
  }

  // Decode in chunks to avoid "call stack size exceeded".
  var res = ''
  var i = 0
  while (i < len) {
    res += String.fromCharCode.apply(
      String,
      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
    )
  }
  return res
}

function asciiSlice (buf, start, end) {
  var ret = ''
  end = Math.min(buf.length, end)

  for (var i = start; i < end; ++i) {
    ret += String.fromCharCode(buf[i] & 0x7F)
  }
  return ret
}

function latin1Slice (buf, start, end) {
  var ret = ''
  end = Math.min(buf.length, end)

  for (var i = start; i < end; ++i) {
    ret += String.fromCharCode(buf[i])
  }
  return ret
}

function hexSlice (buf, start, end) {
  var len = buf.length

  if (!start || start < 0) start = 0
  if (!end || end < 0 || end > len) end = len

  var out = ''
  for (var i = start; i < end; ++i) {
    out += toHex(buf[i])
  }
  return out
}

function utf16leSlice (buf, start, end) {
  var bytes = buf.slice(start, end)
  var res = ''
  for (var i = 0; i < bytes.length; i += 2) {
    res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)
  }
  return res
}

Buffer.prototype.slice = function slice (start, end) {
  var len = this.length
  start = ~~start
  end = end === undefined ? len : ~~end

  if (start < 0) {
    start += len
    if (start < 0) start = 0
  } else if (start > len) {
    start = len
  }

  if (end < 0) {
    end += len
    if (end < 0) end = 0
  } else if (end > len) {
    end = len
  }

  if (end < start) end = start

  var newBuf
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    newBuf = this.subarray(start, end)
    newBuf.__proto__ = Buffer.prototype
  } else {
    var sliceLen = end - start
    newBuf = new Buffer(sliceLen, undefined)
    for (var i = 0; i < sliceLen; ++i) {
      newBuf[i] = this[i + start]
    }
  }

  return newBuf
}

/*
 * Need to make sure that buffer isn't trying to write out of bounds.
 */
function checkOffset (offset, ext, length) {
  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
}

Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var val = this[offset]
  var mul = 1
  var i = 0
  while (++i < byteLength && (mul *= 0x100)) {
    val += this[offset + i] * mul
  }

  return val
}

Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) {
    checkOffset(offset, byteLength, this.length)
  }

  var val = this[offset + --byteLength]
  var mul = 1
  while (byteLength > 0 && (mul *= 0x100)) {
    val += this[offset + --byteLength] * mul
  }

  return val
}

Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 1, this.length)
  return this[offset]
}

Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  return this[offset] | (this[offset + 1] << 8)
}

Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  return (this[offset] << 8) | this[offset + 1]
}

Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)

  return ((this[offset]) |
      (this[offset + 1] << 8) |
      (this[offset + 2] << 16)) +
      (this[offset + 3] * 0x1000000)
}

Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset] * 0x1000000) +
    ((this[offset + 1] << 16) |
    (this[offset + 2] << 8) |
    this[offset + 3])
}

Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var val = this[offset]
  var mul = 1
  var i = 0
  while (++i < byteLength && (mul *= 0x100)) {
    val += this[offset + i] * mul
  }
  mul *= 0x80

  if (val >= mul) val -= Math.pow(2, 8 * byteLength)

  return val
}

Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var i = byteLength
  var mul = 1
  var val = this[offset + --i]
  while (i > 0 && (mul *= 0x100)) {
    val += this[offset + --i] * mul
  }
  mul *= 0x80

  if (val >= mul) val -= Math.pow(2, 8 * byteLength)

  return val
}

Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 1, this.length)
  if (!(this[offset] & 0x80)) return (this[offset])
  return ((0xff - this[offset] + 1) * -1)
}

Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  var val = this[offset] | (this[offset + 1] << 8)
  return (val & 0x8000) ? val | 0xFFFF0000 : val
}

Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  var val = this[offset + 1] | (this[offset] << 8)
  return (val & 0x8000) ? val | 0xFFFF0000 : val
}

Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset]) |
    (this[offset + 1] << 8) |
    (this[offset + 2] << 16) |
    (this[offset + 3] << 24)
}

Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset] << 24) |
    (this[offset + 1] << 16) |
    (this[offset + 2] << 8) |
    (this[offset + 3])
}

Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, true, 23, 4)
}

Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, false, 23, 4)
}

Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, true, 52, 8)
}

Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, false, 52, 8)
}

function checkInt (buf, value, offset, ext, max, min) {
  if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
  if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
  if (offset + ext > buf.length) throw new RangeError('Index out of range')
}

Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) {
    var maxBytes = Math.pow(2, 8 * byteLength) - 1
    checkInt(this, value, offset, byteLength, maxBytes, 0)
  }

  var mul = 1
  var i = 0
  this[offset] = value & 0xFF
  while (++i < byteLength && (mul *= 0x100)) {
    this[offset + i] = (value / mul) & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) {
    var maxBytes = Math.pow(2, 8 * byteLength) - 1
    checkInt(this, value, offset, byteLength, maxBytes, 0)
  }

  var i = byteLength - 1
  var mul = 1
  this[offset + i] = value & 0xFF
  while (--i >= 0 && (mul *= 0x100)) {
    this[offset + i] = (value / mul) & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
  this[offset] = (value & 0xff)
  return offset + 1
}

function objectWriteUInt16 (buf, value, offset, littleEndian) {
  if (value < 0) value = 0xffff + value + 1
  for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; ++i) {
    buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
      (littleEndian ? i : 1 - i) * 8
  }
}

Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value & 0xff)
    this[offset + 1] = (value >>> 8)
  } else {
    objectWriteUInt16(this, value, offset, true)
  }
  return offset + 2
}

Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 8)
    this[offset + 1] = (value & 0xff)
  } else {
    objectWriteUInt16(this, value, offset, false)
  }
  return offset + 2
}

function objectWriteUInt32 (buf, value, offset, littleEndian) {
  if (value < 0) value = 0xffffffff + value + 1
  for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; ++i) {
    buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
  }
}

Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset + 3] = (value >>> 24)
    this[offset + 2] = (value >>> 16)
    this[offset + 1] = (value >>> 8)
    this[offset] = (value & 0xff)
  } else {
    objectWriteUInt32(this, value, offset, true)
  }
  return offset + 4
}

Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 24)
    this[offset + 1] = (value >>> 16)
    this[offset + 2] = (value >>> 8)
    this[offset + 3] = (value & 0xff)
  } else {
    objectWriteUInt32(this, value, offset, false)
  }
  return offset + 4
}

Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) {
    var limit = Math.pow(2, 8 * byteLength - 1)

    checkInt(this, value, offset, byteLength, limit - 1, -limit)
  }

  var i = 0
  var mul = 1
  var sub = 0
  this[offset] = value & 0xFF
  while (++i < byteLength && (mul *= 0x100)) {
    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
      sub = 1
    }
    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) {
    var limit = Math.pow(2, 8 * byteLength - 1)

    checkInt(this, value, offset, byteLength, limit - 1, -limit)
  }

  var i = byteLength - 1
  var mul = 1
  var sub = 0
  this[offset + i] = value & 0xFF
  while (--i >= 0 && (mul *= 0x100)) {
    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
      sub = 1
    }
    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
  if (value < 0) value = 0xff + value + 1
  this[offset] = (value & 0xff)
  return offset + 1
}

Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value & 0xff)
    this[offset + 1] = (value >>> 8)
  } else {
    objectWriteUInt16(this, value, offset, true)
  }
  return offset + 2
}

Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 8)
    this[offset + 1] = (value & 0xff)
  } else {
    objectWriteUInt16(this, value, offset, false)
  }
  return offset + 2
}

Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value & 0xff)
    this[offset + 1] = (value >>> 8)
    this[offset + 2] = (value >>> 16)
    this[offset + 3] = (value >>> 24)
  } else {
    objectWriteUInt32(this, value, offset, true)
  }
  return offset + 4
}

Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
  if (value < 0) value = 0xffffffff + value + 1
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 24)
    this[offset + 1] = (value >>> 16)
    this[offset + 2] = (value >>> 8)
    this[offset + 3] = (value & 0xff)
  } else {
    objectWriteUInt32(this, value, offset, false)
  }
  return offset + 4
}

function checkIEEE754 (buf, value, offset, ext, max, min) {
  if (offset + ext > buf.length) throw new RangeError('Index out of range')
  if (offset < 0) throw new RangeError('Index out of range')
}

function writeFloat (buf, value, offset, littleEndian, noAssert) {
  if (!noAssert) {
    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
  }
  ieee754.write(buf, value, offset, littleEndian, 23, 4)
  return offset + 4
}

Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
  return writeFloat(this, value, offset, true, noAssert)
}

Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
  return writeFloat(this, value, offset, false, noAssert)
}

function writeDouble (buf, value, offset, littleEndian, noAssert) {
  if (!noAssert) {
    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
  }
  ieee754.write(buf, value, offset, littleEndian, 52, 8)
  return offset + 8
}

Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
  return writeDouble(this, value, offset, true, noAssert)
}

Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
  return writeDouble(this, value, offset, false, noAssert)
}

// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
Buffer.prototype.copy = function copy (target, targetStart, start, end) {
  if (!start) start = 0
  if (!end && end !== 0) end = this.length
  if (targetStart >= target.length) targetStart = target.length
  if (!targetStart) targetStart = 0
  if (end > 0 && end < start) end = start

  // Copy 0 bytes; we're done
  if (end === start) return 0
  if (target.length === 0 || this.length === 0) return 0

  // Fatal error conditions
  if (targetStart < 0) {
    throw new RangeError('targetStart out of bounds')
  }
  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
  if (end < 0) throw new RangeError('sourceEnd out of bounds')

  // Are we oob?
  if (end > this.length) end = this.length
  if (target.length - targetStart < end - start) {
    end = target.length - targetStart + start
  }

  var len = end - start
  var i

  if (this === target && start < targetStart && targetStart < end) {
    // descending copy from end
    for (i = len - 1; i >= 0; --i) {
      target[i + targetStart] = this[i + start]
    }
  } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
    // ascending copy from start
    for (i = 0; i < len; ++i) {
      target[i + targetStart] = this[i + start]
    }
  } else {
    Uint8Array.prototype.set.call(
      target,
      this.subarray(start, start + len),
      targetStart
    )
  }

  return len
}

// Usage:
//    buffer.fill(number[, offset[, end]])
//    buffer.fill(buffer[, offset[, end]])
//    buffer.fill(string[, offset[, end]][, encoding])
Buffer.prototype.fill = function fill (val, start, end, encoding) {
  // Handle string cases:
  if (typeof val === 'string') {
    if (typeof start === 'string') {
      encoding = start
      start = 0
      end = this.length
    } else if (typeof end === 'string') {
      encoding = end
      end = this.length
    }
    if (val.length === 1) {
      var code = val.charCodeAt(0)
      if (code < 256) {
        val = code
      }
    }
    if (encoding !== undefined && typeof encoding !== 'string') {
      throw new TypeError('encoding must be a string')
    }
    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
      throw new TypeError('Unknown encoding: ' + encoding)
    }
  } else if (typeof val === 'number') {
    val = val & 255
  }

  // Invalid ranges are not set to a default, so can range check early.
  if (start < 0 || this.length < start || this.length < end) {
    throw new RangeError('Out of range index')
  }

  if (end <= start) {
    return this
  }

  start = start >>> 0
  end = end === undefined ? this.length : end >>> 0

  if (!val) val = 0

  var i
  if (typeof val === 'number') {
    for (i = start; i < end; ++i) {
      this[i] = val
    }
  } else {
    var bytes = Buffer.isBuffer(val)
      ? val
      : utf8ToBytes(new Buffer(val, encoding).toString())
    var len = bytes.length
    for (i = 0; i < end - start; ++i) {
      this[i + start] = bytes[i % len]
    }
  }

  return this
}

// HELPER FUNCTIONS
// ================

var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g

function base64clean (str) {
  // Node strips out invalid characters like \n and \t from the string, base64-js does not
  str = stringtrim(str).replace(INVALID_BASE64_RE, '')
  // Node converts strings with length < 2 to ''
  if (str.length < 2) return ''
  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
  while (str.length % 4 !== 0) {
    str = str + '='
  }
  return str
}

function stringtrim (str) {
  if (str.trim) return str.trim()
  return str.replace(/^\s+|\s+$/g, '')
}

function toHex (n) {
  if (n < 16) return '0' + n.toString(16)
  return n.toString(16)
}

function utf8ToBytes (string, units) {
  units = units || Infinity
  var codePoint
  var length = string.length
  var leadSurrogate = null
  var bytes = []

  for (var i = 0; i < length; ++i) {
    codePoint = string.charCodeAt(i)

    // is surrogate component
    if (codePoint > 0xD7FF && codePoint < 0xE000) {
      // last char was a lead
      if (!leadSurrogate) {
        // no lead yet
        if (codePoint > 0xDBFF) {
          // unexpected trail
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
          continue
        } else if (i + 1 === length) {
          // unpaired lead
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
          continue
        }

        // valid lead
        leadSurrogate = codePoint

        continue
      }

      // 2 leads in a row
      if (codePoint < 0xDC00) {
        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
        leadSurrogate = codePoint
        continue
      }

      // valid surrogate pair
      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
    } else if (leadSurrogate) {
      // valid bmp char, but last char was a lead
      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
    }

    leadSurrogate = null

    // encode utf8
    if (codePoint < 0x80) {
      if ((units -= 1) < 0) break
      bytes.push(codePoint)
    } else if (codePoint < 0x800) {
      if ((units -= 2) < 0) break
      bytes.push(
        codePoint >> 0x6 | 0xC0,
        codePoint & 0x3F | 0x80
      )
    } else if (codePoint < 0x10000) {
      if ((units -= 3) < 0) break
      bytes.push(
        codePoint >> 0xC | 0xE0,
        codePoint >> 0x6 & 0x3F | 0x80,
        codePoint & 0x3F | 0x80
      )
    } else if (codePoint < 0x110000) {
      if ((units -= 4) < 0) break
      bytes.push(
        codePoint >> 0x12 | 0xF0,
        codePoint >> 0xC & 0x3F | 0x80,
        codePoint >> 0x6 & 0x3F | 0x80,
        codePoint & 0x3F | 0x80
      )
    } else {
      throw new Error('Invalid code point')
    }
  }

  return bytes
}

function asciiToBytes (str) {
  var byteArray = []
  for (var i = 0; i < str.length; ++i) {
    // Node's code seems to be doing this and not & 0x7F..
    byteArray.push(str.charCodeAt(i) & 0xFF)
  }
  return byteArray
}

function utf16leToBytes (str, units) {
  var c, hi, lo
  var byteArray = []
  for (var i = 0; i < str.length; ++i) {
    if ((units -= 2) < 0) break

    c = str.charCodeAt(i)
    hi = c >> 8
    lo = c % 256
    byteArray.push(lo)
    byteArray.push(hi)
  }

  return byteArray
}

function base64ToBytes (str) {
  return base64.toByteArray(base64clean(str))
}

function blitBuffer (src, dst, offset, length) {
  for (var i = 0; i < length; ++i) {
    if ((i + offset >= dst.length) || (i >= src.length)) break
    dst[i + offset] = src[i]
  }
  return i
}

function isnan (val) {
  return val !== val // eslint-disable-line no-self-compare
}

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"base64-js":62,"ieee754":124,"isarray":125}],66:[function(require,module,exports){
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      "11":"y"
    },
    "and_uc":{
      "11":"y"
    },
    "samsung":{
      "4":"y"
    }
  },
  "notes":"Safari also supports the unofficial `-webkit-background-clip: text` (only with prefix)",
  "notes_by_num":{
    "1":"Partial support in Opera Mini refers to not supporting background sizing or background attachments. However Opera Mini 7.5 supports background sizing (including cover and contain values).",
    "2":"Partial support in Safari 6 refers to not supporting background sizing offset from edges syntax.",
    "3":"Does not support `background-size` values in the `background` shorthand"
  },
  "usage_perc_y":92.18,
  "usage_perc_a":5.26,
  "ucprefix":false,
  "parent":"",
  "keywords":"",
  "ie_id":"",
  "chrome_id":"",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}

},{}],68:[function(require,module,exports){
module.exports={
  "title":"CSS3 Border images",
  "description":"Method of using images for borders",
  "spec":"http://www.w3.org/TR/css3-background/#the-border-image",
  "status":"cr",
  "links":[
    {
      "url":"http://www.css3files.com/border/",
      "title":"Information page"
    },
    {
      "url":"http://docs.webplatform.org/wiki/css/properties/border-image",
      "title":"WebPlatform Docs"
    }
  ],
  "bugs":[
    {
      "description":"Firefox is not able to stretch svg images across an element - [bug report](https://bugzilla.mozilla.org/show_bug.cgi?id=619500)."
    },
    {
      "description":"WebKit browsers have a different rendering with the `round` value from other browsers, stretching the border rather than repeating it in certain cases [see bug](https://bugs.webkit.org/show_bug.cgi?id=155955)."
    }
  ],
  "categories":[
    "CSS3"
  ],
  "stats":{
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      "5.5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
      "10":"n",
      "11":"y"
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    "edge":{
      "12":"y #1",
      "13":"y #1",
      "14":"y"
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    "firefox":{
      "2":"n",
      "3":"n",
      "3.5":"a x #2 #3",
      "3.6":"a x #2 #3",
      "4":"a x #2 #3",
      "5":"a x #2 #3",
      "6":"a x #2 #3",
      "7":"a x #2 #3",
      "8":"a x #2 #3",
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      "5":"a x #1 #2 #3 #4",
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      "4.0-4.1":"a x #1 #2 #3 #4",
      "4.2-4.3":"a x #1 #2 #3 #4",
      "5.0-5.1":"a x #1 #2 #3 #4",
      "6.0-6.1":"a #1 #2 #4",
      "7.0-7.1":"a #1 #2 #4",
      "8":"a #1 #2 #4",
      "8.1-8.4":"a #1 #2 #4",
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      "9.3":"y #1",
      "10":"y #1"
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    "op_mini":{
      "all":"a x #2 #3 #4"
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      "3":"a #1 #2 #3 #4",
      "4":"a #1 #2 #3 #4",
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      "4.2-4.3":"a #1 #2 #3 #4",
      "4.4":"a #1 #2",
      "4.4.3-4.4.4":"a #1 #2",
      "53":"a #1 #2"
    },
    "bb":{
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      "10":"a #1 #2 #4"
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      "10":"n",
      "11":"a x #2 #3 #4",
      "11.1":"a x #2 #3 #4",
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      "11":"a #1 #2"
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    "samsung":{
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  },
  "notes":"Note that both the `border-style` and `border-width` must be specified (not set to `none` or 0) for border-images to work.",
  "notes_by_num":{
    "1":"Has a bug where `border-image` incorrectly overrides `border-style`. See [test case](http://codepen.io/Savago/pen/yYrgyK), [WebKit bug](https://bugs.webkit.org/show_bug.cgi?id=99922), [discussion](https://github.com/whatwg/compat/issues/17)",
    "2":"Partial support refers to not supporting `border-image-repeat: space`",
    "3":"Partial support refers to supporting the shorthand syntax, but not the individual properties (`border-image-source`, `border-image-slice`, etc). ",
    "4":"Partial support refers to not supporting `border-image-repeat: round`"
  },
  "usage_perc_y":16.25,
  "usage_perc_a":80.52,
  "ucprefix":false,
  "parent":"",
  "keywords":"border-image-source,border-image-slice,border-image-repeat,border-image-width,,border-image-outset",
  "ie_id":"",
  "chrome_id":"",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}

},{}],69:[function(require,module,exports){
module.exports={
  "title":"CSS3 Border-radius (rounded corners)",
  "description":"Method of making the border corners round. Covers support for the shorthand `border-radius` as well as the long-hand properties (e.g. `border-top-left-radius`)",
  "spec":"http://www.w3.org/TR/css3-background/#the-border-radius",
  "status":"cr",
  "links":[
    {
      "url":"http://border-radius.com",
      "title":"Border-radius CSS Generator"
    },
    {
      "url":"http://muddledramblings.com/table-of-css3-border-radius-compliance",
      "title":"Detailed compliance table"
    },
    {
      "url":"http://www.css3files.com/border/#borderradius",
      "title":"Information page"
    },
    {
      "url":"http://css3pie.com/",
      "title":"Polyfill which includes border-radius"
    },
    {
      "url":"http://docs.webplatform.org/wiki/css/properties/border-radius",
      "title":"WebPlatform Docs"
    }
  ],
  "bugs":[
    {
      "description":"Safari does not apply `border-radius` correctly to image borders: http://stackoverflow.com/q/17202128"
    },
    {
      "description":"Android Browser 2.3 does not support % value for `border-radius`."
    },
    {
      "description":"Border-radius does not work on fieldset elements in IE9."
    },
    {
      "description":"The stock browser on the Samsung Galaxy S4 with Android 4.2 does not support the `border-radius` shorthand property but does support the long-hand properties for each corner like `border-top-left-radius`."
    },
    {
      "description":"Older versions of Safari [had a bug](https://bugs.webkit.org/show_bug.cgi?id=50072) where background images would bleed out of the border-radius."
    },
    {
      "description":"Dotted and dashed rounded border corners are rendered as solid in Firefox. Fixed since Firefox 50. [see bug](https://bugzilla.mozilla.org/show_bug.cgi?id=382721)"
    }
  ],
  "categories":[
    "CSS3"
  ],
  "stats":{
    "ie":{
      "5.5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"y",
      "10":"y",
      "11":"y"
    },
    "edge":{
      "12":"y",
      "13":"y",
      "14":"y"
    },
    "firefox":{
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      "9":"y",
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      "53":"y"
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  "notes":"",
  "notes_by_num":{
    "1":"Safari 6.1 and earlier did not apply `border-radius` correctly to image borders: http://stackoverflow.com/q/17202128",
    "2":"Dotted and dashed rounded border corners are rendered as solid in Firefox. [see bug](https://bugzilla.mozilla.org/show_bug.cgi?id=382721)"
  },
  "usage_perc_y":93.39,
  "usage_perc_a":0.01,
  "ucprefix":false,
  "parent":"",
  "keywords":"roundedcorners, border radius,-moz-border-radius",
  "ie_id":"",
  "chrome_id":"",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}

},{}],70:[function(require,module,exports){
module.exports={
  "title":"calc() as CSS unit value",
  "description":"Method of allowing calculated values for length units, i.e. `width: calc(100% - 3em)`",
  "spec":"http://www.w3.org/TR/css3-values/#calc",
  "status":"cr",
  "links":[
    {
      "url":"http://hacks.mozilla.org/2010/06/css3-calc/",
      "title":"Mozilla Hacks article"
    },
    {
      "url":"https://developer.mozilla.org/en/docs/Web/CSS/calc",
      "title":"MDN article"
    },
    {
      "url":"http://docs.webplatform.org/wiki/css/functions/calc",
      "title":"WebPlatform Docs"
    }
  ],
  "bugs":[
    {
      "description":"IE10 crashes when a div with a property using `calc()` has a child with [same property with inherit](http://stackoverflow.com/questions/19423384/css-less-calc-method-is-crashing-my-ie10)."
    },
    {
      "description":"IE 9 - 11 don't render `box-shadow` when `calc()` is used for any of the values"
    },
    {
      "description":"IE10, IE11, and Edge < 14 don't support using `calc()` inside a `transform`. [Bug report](https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/104773/)"
    },
    {
      "description":"Safari & iOS Safari (both 6 and 7) does not support viewport units (`vw`, `vh`, etc) in `calc()`."
    },
    {
      "description":"IE & Edge are reported to not support calc inside a 'flex'. (Not tested on older versions)\r\nThis example does not work: `flex: 1 1 calc(50% - 20px);`"
    },
    {
      "description":"Firefox does not support `calc()` inside the `line-height`, `stroke-width`, `stroke-dashoffset`, and `stroke-dasharray` properties. [Bug report](https://bugzilla.mozilla.org/show_bug.cgi?id=594933)"
    },
    {
      "description":"IE11 is reported to have trouble with `calc()` with nested expressions, e.g. `width: calc((100% - 10px) / 3);` (i.e. it rounds differently)"
    },
    {
      "description":"IE11 is reported to not support `calc()` correctly in [generated content](http://stackoverflow.com/questions/31323915/internet-explorer-incorrectly-calculates-percentage-height-for-generated-content)"
    },
    {
      "description":"IE11 does not support transitioning values set with `calc()`"
    }
  ],
  "categories":[
    "CSS3"
  ],
  "stats":{
    "ie":{
      "5.5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"a #2",
      "10":"y",
      "11":"y"
    },
    "edge":{
      "12":"y",
      "13":"y",
      "14":"y"
    },
    "firefox":{
      "2":"n",
      "3":"n",
      "3.5":"n",
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      "4":"y x",
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    },
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      "4":"n",
      "5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
      "10":"n",
      "11":"n",
      "12":"n",
      "13":"n",
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  "notes":"Support can be somewhat emulated in older versions of IE using the non-standard `expression()` syntax.\r\n\r\nDue to the way browsers handle [sub-pixel rounding](http://ejohn.org/blog/sub-pixel-problems-in-css/) differently, layouts using `calc()` expressions may have unexpected results.",
  "notes_by_num":{
    "1":"Partial support in Android Browser 4.4 refers to the browser lacking the ability to multiply and divide values.",
    "2":"Partial support in IE9 refers to the browser crashing when used as a `background-position` value."
  },
  "usage_perc_y":80.2,
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  "ucprefix":false,
  "parent":"",
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  "webkit_id":"",
  "shown":true
}

},{}],71:[function(require,module,exports){
module.exports={
  "title":"CSS Animation",
  "description":"Complex method of animating certain properties of an element",
  "spec":"http://www.w3.org/TR/css3-animations/",
  "status":"wd",
  "links":[
    {
      "url":"http://robertnyman.com/2010/05/06/css3-animations/",
      "title":"Blog post on usage"
    },
    {
      "url":"http://www.css3files.com/animation/",
      "title":"Information page"
    },
    {
      "url":"http://docs.webplatform.org/wiki/css/properties/animations",
      "title":"WebPlatform Docs"
    }
  ],
  "bugs":[
    {
      "description":"'animation-fill-mode' property is not supported in Android browser below 2.3."
    },
    {
      "description":"iOS 6.1 and below do not support animation on pseudo-elements. iOS 7 and higher are reported to have buggy behavior with animating pseudo-elements."
    },
    {
      "description":"@keyframes not supported in an inline or scoped stylesheet in Firefox (bug 830056)"
    },
    {
      "description":"In Chrome `animation-fill-mode backwards` is wrong if `steps(x, start)` is used [see example](http://codepen.io/Fyrd/pen/jPPKpX)."
    },
    {
      "description":"IE10 and IE11 do not support CSS keyframe blocks inside media queries. Must be defined outside of media query definitions. [example](http://codepen.io/anon/pen/ZOodVd)"
    },
    {
      "description":"IE10 and IE11 on Windows 7 have a bug where translate transform values are always interpreted as pixels when used in animations [test case](http://codepen.io/flxsource/pen/jPYWoE)"
    },
    {
      "description":"IE10 and IE11 will not fire Animation events for pseudo element animations. See [example here](http://codepen.io/dogoku/pen/JRwbmL)"
    }
  ],
  "categories":[
    "CSS3"
  ],
  "stats":{
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      "8":"n",
      "9":"n",
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    "edge":{
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  },
  "notes":"",
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  "usage_perc_y":92.85,
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}

},{}],72:[function(require,module,exports){
module.exports={
  "title":"CSS :any-link selector",
  "description":"The :any-link CSS pseudo-class matches all elements that match :link or :visited",
  "spec":"https://drafts.csswg.org/selectors-4/#the-any-link-pseudo",
  "status":"wd",
  "links":[
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/:any-link",
      "title":"MDN page"
    }
  ],
  "bugs":[
    
  ],
  "categories":[
    "CSS"
  ],
  "stats":{
    "ie":{
      "5.5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
      "10":"n",
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    },
    "edge":{
      "12":"n",
      "13":"n",
      "14":"n"
    },
    "firefox":{
      "2":"u",
      "3":"u",
      "3.5":"u",
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      "4":"u",
      "5":"u",
      "6":"u",
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  "notes":"",
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}

},{}],73:[function(require,module,exports){
module.exports={
  "title":"CSS Appearance",
  "description":"The `appearance` property defines how elements (particularly form controls) appear by default. By setting the value to `none` the default appearance can be entirely redefined using other CSS properties.",
  "spec":"https://drafts.csswg.org/css-ui-4/#appearance-switching",
  "status":"wd",
  "links":[
    {
      "url":"http://css-tricks.com/almanac/properties/a/appearance/",
      "title":"CSS Tricks article"
    }
  ],
  "bugs":[
    
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  "categories":[
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  "stats":{
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    "edge":{
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},{}],74:[function(require,module,exports){
module.exports={
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    {
      "url":"https://wpdev.uservoice.com/forums/257854-microsoft-edge-developer/suggestions/9160189-backdrop-filters",
      "title":"Edge feature request"
    }
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  "bugs":[
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      "description":"Chrome feature request: [Chromium issue #497522](https://code.google.com/p/chromium/issues/detail?id=497522)"
    },
    {
      "description":"Firefox feature request: [Mozilla bug #1178765](https://bugzilla.mozilla.org/show_bug.cgi?id=1178765)"
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},{}],75:[function(require,module,exports){
module.exports={
  "title":"CSS box-decoration-break",
  "description":"Controls whether the box's margins, borders, padding, and other decorations wrap the broken edges of the box fragments (when the box is split by a break (page/column/region/line).",
  "spec":"http://www.w3.org/TR/css3-break/#break-decoration",
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      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/box-decoration-break",
      "title":"MDN article"
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      "url":"http://jsbin.com/xojoro/edit?css,output",
      "title":"Demo of effect on box border"
    },
    {
      "url":"https://wpdev.uservoice.com/forums/257854-microsoft-edge-developer/suggestions/6514472-box-decoration-break",
      "title":"Microsoft Edge feature request on UserVoice"
    }
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},{}],76:[function(require,module,exports){
module.exports={
  "title":"CSS3 Box-shadow",
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  "status":"cr",
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    },
    {
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  "shown":true
}

},{}],77:[function(require,module,exports){
module.exports={
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  "description":"Scales images with an algorithm that preserves edges and contrast, without smoothing colors or introducing blur. This is intended for images such as pixel art. Official values that accomplish this for the `image-rendering` property are `crisp-edges` and `pixelated`.",
  "spec":"http://dev.w3.org/csswg/css-images-3/#valdef-image-rendering-crisp-edges",
  "status":"unoff",
  "links":[
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/image-rendering",
      "title":"MDN article"
    },
    {
      "url":"http://updates.html5rocks.com/2015/01/pixelated",
      "title":"HTML5Rocks article"
    }
  ],
  "bugs":[
    {
      "description":"`image-rendering:-webkit-optimize-contrast;` and `-ms-interpolation-mode:nearest-neighbor` do not affect CSS images."
    }
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  "categories":[
    "CSS",
    "CSS3"
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  "notes":"Note that prefixes apply to the value (e.g. `-moz-crisp-edges`), not the `image-rendering` property.",
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}

},{}],78:[function(require,module,exports){
module.exports={
  "title":"CSS Cross-Fade Function",
  "description":"Image function to create a \"crossfade\" between images. This allows one image to transition (fade) into another based on a percentage value.",
  "spec":"https://drafts.csswg.org/css-images-3/#cross-fade-function",
  "status":"unoff",
  "links":[
    {
      "url":"http://peter.sh/files/examples/cross-fading.html",
      "title":"Simple demo"
    }
  ],
  "bugs":[
    
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  "categories":[
    "CSS"
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},{}],79:[function(require,module,exports){
module.exports={
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      "url":"https://bugzilla.mozilla.org/show_bug.cgi?id=747754",
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},{}],80:[function(require,module,exports){
module.exports={
  "title":"CSS element() function",
  "description":"This function renders a live image generated from an arbitrary HTML element",
  "spec":"http://www.w3.org/TR/css4-images/#element-notation",
  "status":"wd",
  "links":[
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/element",
      "title":"MDN page"
    }
  ],
  "bugs":[
    {
      "description":"Chromium [bug #108972](https://code.google.com/p/chromium/issues/detail?id=108972)"
    },
    {
      "description":"WebKit [bug #44650](https://bugs.webkit.org/show_bug.cgi?id=44650)"
    }
  ],
  "categories":[
    "CSS3"
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  "notes":"",
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},{}],81:[function(require,module,exports){
module.exports={
  "title":"CSS Feature Queries",
  "description":"CSS Feature Queries allow authors to condition rules based on whether particular property declarations are supported in CSS using the @supports at rule.",
  "spec":"http://www.w3.org/TR/css3-conditional/#at-supports",
  "status":"cr",
  "links":[
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/@supports",
      "title":"MDN Article"
    },
    {
      "url":"http://mcc.id.au/blog/2012/08/supports",
      "title":"@supports in Firefox"
    },
    {
      "url":"http://dabblet.com/gist/3895764",
      "title":"Test case"
    },
    {
      "url":"http://docs.webplatform.org/wiki/css/atrules/@supports",
      "title":"WebPlatform Docs"
    }
  ],
  "bugs":[
    {
      "description":"Using @supports on Chrome 28-29 and Opera 15-16 breaks following :not selectors. [crbug.com/257695](http://crbug.com/257695)"
    },
    {
      "description":"Safari claims to support certain font-feature-settings it actually does not. [This JS module](https://github.com/kennethormandy/font-feature-fibbing) helps to provide accurate support for this."
    }
  ],
  "categories":[
    "CSS3"
  ],
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},{}],82:[function(require,module,exports){
module.exports={
  "title":"CSS filter() function",
  "description":"This function filters a CSS input image with a set of filter functions (like blur, grayscale or hue)",
  "spec":"http://www.w3.org/TR/filter-effects/#FilterCSSImageValue",
  "status":"wd",
  "links":[
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      "url":"http://iamvdo.me/en/blog/advanced-css-filters#filter",
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  "bugs":[
    {
      "description":"Firefox feature request: [Mozilla bug #1191043](https://bugzilla.mozilla.org/show_bug.cgi?id=1191043)"
    }
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  "notes":"",
  "notes_by_num":{
    
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  "usage_perc_a":0,
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  "webkit_id":"",
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}

},{}],83:[function(require,module,exports){
module.exports={
  "title":"CSS Filter Effects",
  "description":"Method of applying filter effects (like blur, grayscale, brightness, contrast and hue) to elements, previously only possible by using SVG.",
  "spec":"http://www.w3.org/TR/filter-effects-1/",
  "status":"wd",
  "links":[
    {
      "url":"http://html5-demos.appspot.com/static/css/filters/index.html",
      "title":"Demo file for WebKit browsers"
    },
    {
      "url":"http://www.html5rocks.com/en/tutorials/filters/understanding-css/",
      "title":"HTML5Rocks article"
    },
    {
      "url":"http://dl.dropbox.com/u/3260327/angular/CSS3ImageManipulation.html",
      "title":"Filter editor"
    },
    {
      "url":"http://bennettfeely.com/filters/",
      "title":"Filter Playground"
    }
  ],
  "bugs":[
    
  ],
  "categories":[
    "CSS",
    "CSS3"
  ],
  "stats":{
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      "8":"n",
      "9":"n",
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      "4":"n",
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      "4.2-4.3":"n",
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  },
  "notes":"Note that this property is significantly different from and incompatible with Microsoft's [older \"filter\" property](http://msdn.microsoft.com/en-us/library/ie/ms530752%28v=vs.85%29.aspx).",
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    "1":"Supported in Firefox under the `layout.css.filters.enabled` flag.",
    "2":"Supported in MS Edge under the \"Enable CSS filter property\" flag.",
    "3":"Partial support in Firefox before version 34 [only implemented the url() function of the filter property](https://developer.mozilla.org/en-US/docs/Web/CSS/filter#Browser_compatibility)",
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  },
  "usage_perc_y":85.03,
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  "ucprefix":false,
  "parent":"",
  "keywords":"sepia,hue-rotate,invert,saturate,filter:blur",
  "ie_id":"filters",
  "chrome_id":"5822463824887808",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}

},{}],84:[function(require,module,exports){
module.exports={
  "title":"CSS Gradients",
  "description":"Method of defining a linear or radial color gradient as a CSS image.",
  "spec":"http://www.w3.org/TR/css3-images/",
  "status":"cr",
  "links":[
    {
      "url":"http://www.colorzilla.com/gradient-editor/",
      "title":"Cross-browser editor"
    },
    {
      "url":"http://www.css3files.com/gradient/",
      "title":"Information page"
    },
    {
      "url":"http://css3pie.com/",
      "title":"Tool to emulate support in IE"
    },
    {
      "url":"http://docs.webplatform.org/wiki/css/functions/linear-gradient",
      "title":"WebPlatform Docs"
    }
  ],
  "bugs":[
    
  ],
  "categories":[
    "CSS3"
  ],
  "stats":{
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      "5.5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
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    "edge":{
      "12":"y",
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  "webkit_id":"",
  "shown":true
}

},{}],85:[function(require,module,exports){
module.exports={
  "title":"CSS Grid Layout",
  "description":"Method of using a grid concept to lay out content, providing a mechanism for authors to divide available space for lay out into columns and rows using a set of predictable sizing behaviors",
  "spec":"http://www.w3.org/TR/css3-grid-layout/",
  "status":"cr",
  "links":[
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      "url":"http://blogs.msdn.com/b/ie/archive/2011/04/14/ie10-platform-preview-and-css-features-for-adaptive-layouts.aspx",
      "title":"IE Blog post"
    },
    {
      "url":"https://bugs.webkit.org/show_bug.cgi?id=60731",
      "title":"Webkit (Chrome, Safari, etc.) feature request"
    },
    {
      "url":"https://bugzilla.mozilla.org/show_bug.cgi?id=616605",
      "title":"Mozilla (Firefox) feature request"
    },
    {
      "url":"https://github.com/codler/Grid-Layout-Polyfill",
      "title":"Polyfill based on old spec"
    },
    {
      "url":"https://github.com/FremyCompany/css-grid-polyfill/",
      "title":"Polyfill based on new spec"
    }
  ],
  "bugs":[
    
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  "categories":[
    "CSS"
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},{}],86:[function(require,module,exports){
module.exports={
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      "title":"Blog post"
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    {
      "url":"http://docs.webplatform.org/wiki/css/properties/hyphens",
      "title":"WebPlatform Docs"
    },
    {
      "url":"https://crbug.com/605840",
      "title":"Chrome bug for implementing hyphenation"
    }
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},{}],87:[function(require,module,exports){
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},{}],88:[function(require,module,exports){
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      "url":"http://docs.webplatform.org/wiki/css/properties/mask",
      "title":"WebPlatform Docs"
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      "url":"http://www.html5rocks.com/en/tutorials/masking/adobe/",
      "title":"HTML5 Rocks article"
    },
    {
      "url":"http://thenittygritty.co/css-masking",
      "title":"Detailed blog post"
    },
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      "url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1224422",
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},{}],90:[function(require,module,exports){
module.exports={
  "title":"Media Queries: resolution feature",
  "description":"Allows a media query to be set based on the device pixels used per CSS unit. While the standard uses `min`/`max-resolution` for this, some browsers support the older non-standard `device-pixel-ratio` media query.",
  "spec":"http://www.w3.org/TR/css3-mediaqueries/#resolution",
  "status":"rec",
  "links":[
    {
      "url":"http://www.w3.org/blog/CSS/2012/06/14/unprefix-webkit-device-pixel-ratio/",
      "title":"How to unprefix -webkit-device-pixel-ratio"
    },
    {
      "url":"https://bugs.webkit.org/show_bug.cgi?id=78087",
      "title":"WebKit Bug 78087: Implement the 'resolution' media query"
    },
    {
      "url":"https://compat.spec.whatwg.org/#css-media-queries-webkit-device-pixel-ratio",
      "title":"WHATWG Compatibility Standard: -webkit-device-pixel-ratio"
    }
  ],
  "bugs":[
    {
      "description":"Microsoft Edge has a bug where `min-resolution` less than `1dpcm` [is ignored](http://jsfiddle.net/behmjd5t/)."
    }
  ],
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},{}],91:[function(require,module,exports){
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  "description":"The ::placeholder pseudo-element represents placeholder text in an input field: text that represents the input and provides a hint to the user on how to fill out the form. For example, a date-input field might have the placeholder text `YYYY/MM/DD` to clarify that numeric dates are to be entered in year-month-day order.",
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      "url":"http://msdn.microsoft.com/en-us/library/ie/hh772745(v=vs.85).aspx",
      "title":"MSDN article"
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      "url":"http://css-tricks.com/snippets/css/style-placeholder-text/",
      "title":"CSS-Tricks article with all prefixes"
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    {
      "url":"http://wiki.csswg.org/ideas/placeholder-styling",
      "title":"CSSWG discussion"
    },
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/::-moz-placeholder",
      "title":"MDN article"
    },
    {
      "url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1069012",
      "title":"Mozilla Bug 1069012 - unprefix :placeholder-shown pseudo-class and ::placeholder pseudo-element"
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  "notes":"Partial support refers to using alternate names:\r\n`::-webkit-input-placeholder` for Chrome/Safari/Opera ([Chrome issue #623345](https://bugs.chromium.org/p/chromium/issues/detail?id=623345))\r\n`:-ms-input-placeholder` for IE. \r\n`::-ms-input-placeholder` for Edge (also supports webkit prefix)",
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  "chrome_id":"",
  "firefox_id":"",
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  "shown":true
}

},{}],92:[function(require,module,exports){
module.exports={
  "title":"CSS :read-only and :read-write selectors",
  "description":":read-only and :read-write pseudo-classes to match elements which are considered user-alterable",
  "spec":"https://html.spec.whatwg.org/multipage/scripting.html#selector-read-only",
  "status":"ls",
  "links":[
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      "url":"https://css-tricks.com/almanac/selectors/r/read-write-read/",
      "title":"CSS Tricks article"
    },
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/%3Aread-only",
      "title":"MDN :read-only"
    },
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/:read-write",
      "title":"MDN :read-write"
    },
    {
      "url":"https://drafts.csswg.org/selectors-4/#rw-pseudos",
      "title":"Selectors Level 4 \u00a7 The Mutability Pseudo-classes: :read-only and :read-write"
    },
    {
      "url":"https://bugzilla.mozilla.org/show_bug.cgi?id=312971",
      "title":"Firefox feature request bug"
    }
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  "notes":"",
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    "1":"Supports selector only for input and textarea fields, but not for contenteditable"
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}

},{}],93:[function(require,module,exports){
module.exports={
  "title":"CSS Regions",
  "description":"Method of flowing content into multiple elements.",
  "spec":"http://www.w3.org/TR/css3-regions/",
  "status":"wd",
  "links":[
    {
      "url":"http://html.adobe.com/webstandards/cssregions/",
      "title":"Adobe demos and samples"
    },
    {
      "url":"http://msdn.microsoft.com/en-us/ie/hh272902#_CSSConnected",
      "title":"IE10 developer guide info"
    },
    {
      "url":"http://docs.webplatform.org/wiki/css/atrules/@region",
      "title":"WebPlatform Docs"
    },
    {
      "url":"https://bugzilla.mozilla.org/show_bug.cgi?id=674802",
      "title":"Firefox feature request bug"
    }
  ],
  "bugs":[
    
  ],
  "categories":[
    "CSS3"
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  "stats":{
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},{}],94:[function(require,module,exports){
module.exports={
  "title":"::selection CSS pseudo-element",
  "description":"The ::selection CSS pseudo-element applies rules to the portion of a document that has been highlighted (e.g., selected with the mouse or another pointing device) by the user.",
  "spec":"http://www.w3.org/TR/css-pseudo-4/#selectordef-selection",
  "status":"wd",
  "links":[
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      "url":"http://quirksmode.org/css/selectors/selection.html",
      "title":"::selection test"
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    {
      "url":"http://docs.webplatform.org/wiki/css/selectors/pseudo-elements/::selection",
      "title":"WebPlatform Docs"
    }
  ],
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      "description":"In Safari `::selection` styles do not work in combination with CSS multi-column."
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},{}],95:[function(require,module,exports){
module.exports={
  "title":"CSS Shapes Level 1",
  "description":"Allows geometric shapes to be set in CSS to define an area for text to flow around.",
  "spec":"http://www.w3.org/TR/css-shapes/",
  "status":"cr",
  "links":[
    {
      "url":"http://html.adobe.com/webplatform/layout/shapes/",
      "title":"Adobe demos and samples"
    },
    {
      "url":"http://html.adobe.com/webplatform/layout/shapes/browser-support/",
      "title":"CSS shapes support test by Adobe"
    },
    {
      "url":"http://alistapart.com/article/css-shapes-101",
      "title":"A List Apart article"
    },
    {
      "url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1040714",
      "title":"Firefox tracking bug"
    }
  ],
  "bugs":[
    
  ],
  "categories":[
    "CSS3"
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  "stats":{
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  "notes":"",
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},{}],96:[function(require,module,exports){
module.exports={
  "title":"CSS Scroll snap points",
  "description":"CSS technique that allows customizable scrolling experiences like pagination of carousels by setting defined snap points.",
  "spec":"http://www.w3.org/TR/css-snappoints-1/",
  "status":"wd",
  "links":[
    {
      "url":"http://generatedcontent.org/post/66817675443/setting-native-like-scrolling-offsets-in-css-with",
      "title":"Blog post"
    },
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Scroll_Snap_Points",
      "title":"MDN Documentation for CSS Scroll snap points"
    },
    {
      "url":"https://github.com/ckrack/scrollsnap-polyfill",
      "title":"Polyfill"
    }
  ],
  "bugs":[
    
  ],
  "categories":[
    "CSS"
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    "2":"Partial support in IE11 [documented here](https://dl.dropboxusercontent.com/u/444684/openwebref/CSS/scroll-snap-points/support.html)",
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},{}],97:[function(require,module,exports){
module.exports={
  "title":"CSS position:sticky",
  "description":"Keeps elements positioned as \"fixed\" or \"relative\" depending on how it appears in the viewport. As a result the element is \"stuck\" when necessary while scrolling.",
  "spec":"https://drafts.csswg.org/css-position/#sticky-pos",
  "status":"unoff",
  "links":[
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      "url":"http://updates.html5rocks.com/2012/08/Stick-your-landings-position-sticky-lands-in-WebKit",
      "title":"HTML5Rocks"
    },
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/position",
      "title":"MDN article"
    },
    {
      "url":"http://docs.webplatform.org/wiki/css/properties/position",
      "title":"WebPlatform Docs"
    },
    {
      "url":"https://github.com/filamentgroup/fixed-sticky",
      "title":"Polyfill"
    },
    {
      "url":"https://github.com/wilddeer/stickyfill",
      "title":"Another polyfill"
    }
  ],
  "bugs":[
    {
      "description":"Firefox and Safari 7 & below do not appear to support [sticky table headers](http://jsfiddle.net/Mf4YT/2/). (see also [Firefox bug](https://bugzilla.mozilla.org/show_bug.cgi?id=975644))"
    },
    {
      "description":"A parent with overflow set to `auto` will prevent `position: sticky` from working in Safari"
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  "notes":"",
  "notes_by_num":{
    "1":"Can be enabled in Firefox by setting the about:config preference layout.css.sticky.enabled to true",
    "2":"Enabled through the \"experimental Web Platform features\" flag"
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  "usage_perc_y":18.01,
  "usage_perc_a":0,
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  "parent":"",
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  "shown":true
}

},{}],98:[function(require,module,exports){
module.exports={
  "title":"CSS3 text-align-last",
  "description":"CSS property to describe how the last line of a block or a line right before a forced line break when `text-align` is `justify`.",
  "spec":"http://www.w3.org/TR/css3-text/#text-align-last-property",
  "status":"wd",
  "links":[
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/text-align-last",
      "title":"MDN text-align-last"
    },
    {
      "url":"http://blogs.adobe.com/webplatform/2014/02/25/improving-your-sites-visual-details-css3-text-align-last/",
      "title":"Adobe Web Platform Article"
    }
  ],
  "bugs":[
    
  ],
  "categories":[
    "CSS3"
  ],
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      "31":"n d #3",
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      "33":"n d #3",
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  },
  "notes":"",
  "notes_by_num":{
    "1":"In Internet Explorer, the start and end values are not supported.",
    "2":"Enabled through the \"Enable Experimental Web Platform Features\" flag in chrome://flags",
    "3":"Enabled through the \"Enable Experimental Web Platform Features\" flag in opera://flags"
  },
  "usage_perc_y":57.13,
  "usage_perc_a":6.96,
  "ucprefix":false,
  "parent":"",
  "keywords":"text align last",
  "ie_id":"",
  "chrome_id":"",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}

},{}],99:[function(require,module,exports){
module.exports={
  "title":"CSS Text 4 text-spacing",
  "description":"This property controls spacing between adjacent characters on the same line within the same inline formatting context using a set of character-class-based rules.",
  "spec":"https://drafts.csswg.org/css-text-4/#text-spacing-property",
  "status":"wd",
  "links":[
    {
      "url":"https://msdn.microsoft.com/library/ms531164(v=vs.85).aspx",
      "title":"MSDN page"
    }
  ],
  "bugs":[
    
  ],
  "categories":[
    "CSS"
  ],
  "stats":{
    "ie":{
      "5.5":"n",
      "6":"n",
      "7":"n",
      "8":"y x #1",
      "9":"y x #1",
      "10":"y x #1",
      "11":"y x #1"
    },
    "edge":{
      "12":"y x #1",
      "13":"y x #1",
      "14":"y x #1"
    },
    "firefox":{
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  "notes":"",
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    "1":"IE accepts -ms-text-autospace property"
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}

},{}],100:[function(require,module,exports){
module.exports={
  "title":"CSS3 Transitions",
  "description":"Simple method of animating certain properties of an element, with ability to define property, duration, delay and timing function. ",
  "spec":"http://www.w3.org/TR/css3-transitions/",
  "status":"wd",
  "links":[
    {
      "url":"http://www.webdesignerdepot.com/2010/01/css-transitions-101/",
      "title":"Article on usage"
    },
    {
      "url":"http://www.css3files.com/transition/",
      "title":"Information page"
    },
    {
      "url":"http://www.the-art-of-web.com/css/timing-function/",
      "title":"Examples on timing functions"
    },
    {
      "url":"http://www.opera.com/docs/specs/presto2.12/css/transitions/",
      "title":"Animation of property types support in Opera"
    },
    {
      "url":"http://docs.webplatform.org/wiki/css/properties/transition",
      "title":"WebPlatform Docs"
    }
  ],
  "bugs":[
    {
      "description":"Not supported on any pseudo-elements besides ::before and ::after for Firefox, Chrome 26+, Opera 16+ and IE10+."
    },
    {
      "description":"Transitionable properties with calc() derived values are not supported below and including IE11 (http://connect.microsoft.com/IE/feedback/details/762719/css3-calc-bug-inside-transition-or-transform)"
    },
    {
      "description":"'background-size' is not supported below and including IE10"
    },
    {
      "description":"IE11 [does not support](https://connect.microsoft.com/IE/feedbackdetail/view/920928/ie-11-css-transition-property-not-working-for-svg-elements) CSS transitions on the SVG `fill` property."
    },
    {
      "description":"In Chrome (up to 43.0), for transition-delay property, either explicitly specified or written within transition property, the unit cannot be ommitted even if the value is 0."
    },
    {
      "description":"IE10 & IE11 are reported to not support transitioning the `column-count` property."
    }
  ],
  "categories":[
    "CSS3"
  ],
  "stats":{
    "ie":{
      "5.5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
      "10":"y",
      "11":"y"
    },
    "edge":{
      "12":"y",
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    },
    "firefox":{
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      "4":"y x",
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    "chrome":{
      "4":"y x",
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      "7":"y",
      "7.1":"y",
      "8":"y",
      "9":"y",
      "9.1":"y",
      "10":"y",
      "TP":"y"
    },
    "opera":{
      "9":"n",
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      "10.0-10.1":"n",
      "10.5":"y x",
      "10.6":"y x",
      "11":"y x",
      "11.1":"y x",
      "11.5":"y x",
      "11.6":"y x",
      "12":"y x",
      "12.1":"y",
      "15":"y",
      "16":"y",
      "17":"y",
      "18":"y",
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    },
    "ios_saf":{
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      "4.2-4.3":"y x",
      "5.0-5.1":"y x",
      "6.0-6.1":"y x",
      "7.0-7.1":"y",
      "8":"y",
      "8.1-8.4":"y",
      "9.0-9.2":"y",
      "9.3":"y",
      "10":"y"
    },
    "op_mini":{
      "all":"n"
    },
    "android":{
      "2.1":"y x",
      "2.2":"y x",
      "2.3":"y x",
      "3":"y x",
      "4":"y x",
      "4.1":"y x",
      "4.2-4.3":"y x",
      "4.4":"y",
      "4.4.3-4.4.4":"y",
      "53":"y"
    },
    "bb":{
      "7":"y x",
      "10":"y"
    },
    "op_mob":{
      "10":"y x",
      "11":"y x",
      "11.1":"y x",
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      "12":"y x",
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    },
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    },
    "and_uc":{
      "11":"y x"
    },
    "samsung":{
      "4":"y"
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  },
  "notes":"Support listed is for `transition` properties as well as the `transitionend` event. The prefixed name in WebKit browsers is `webkitTransitionEnd`",
  "notes_by_num":{
    
  },
  "usage_perc_y":92.95,
  "usage_perc_a":0,
  "ucprefix":false,
  "parent":"",
  "keywords":"css transition,transitionend,transition-property,transition-duration,transition-timing-function,transition-delay",
  "ie_id":"",
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  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}

},{}],101:[function(require,module,exports){
module.exports={
  "title":"CSS writing-mode property",
  "description":"Property to define whether lines of text are laid out horizontally or vertically and the direction in which blocks progress.",
  "spec":"https://drafts.csswg.org/css-writing-modes-3/#block-flow",
  "status":"cr",
  "links":[
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/writing-mode",
      "title":"MDN article"
    }
  ],
  "bugs":[
    
  ],
  "categories":[
    "CSS"
  ],
  "stats":{
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      "6":"a #1",
      "7":"a #1",
      "8":"a #1",
      "9":"a #1",
      "10":"a #1",
      "11":"a #1"
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    "edge":{
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      "29":"n",
      "30":"n",
      "31":"n",
      "32":"n",
      "33":"n",
      "34":"n",
      "35":"n",
      "36":"n d #2",
      "37":"n d #2",
      "38":"n d #2",
      "39":"n d #2",
      "40":"n d #2",
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      "50":"y",
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      "4":"n",
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      "6":"n",
      "7":"u",
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      "9":"y x",
      "10":"y x",
      "11":"y x",
      "12":"y x",
      "13":"y x",
      "14":"y x",
      "15":"y x",
      "16":"y x",
      "17":"y x",
      "18":"y x",
      "19":"y x",
      "20":"y x",
      "21":"y x",
      "22":"y x",
      "23":"y x",
      "24":"y x",
      "25":"y x",
      "26":"y x",
      "27":"y x",
      "28":"y x",
      "29":"y x",
      "30":"y x",
      "31":"y x",
      "32":"y x",
      "33":"y x",
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      "45":"y x",
      "46":"y x",
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      "48":"y x",
      "49":"y x",
      "50":"y x",
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      "54":"y x",
      "55":"y x",
      "56":"y x",
      "57":"y x"
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      "7":"y x",
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  "notes":"",
  "notes_by_num":{
    "1":"Internet Explorer supports different values from an [earlier version of the spec](http://www.w3.org/TR/2003/CR-css3-text-20030514/#Progression), which originated from SVG.",
    "2":"Supported in Firefox under the `layout.css.vertical-text.enabled` flag"
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  "chrome_id":"",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}

},{}],102:[function(require,module,exports){
module.exports={
  "title":"CSS3 Box-sizing",
  "description":"Method of specifying whether or not an element's borders and padding should be included in size units",
  "spec":"http://www.w3.org/TR/css3-ui/#box-sizing",
  "status":"cr",
  "links":[
    {
      "url":"https://developer.mozilla.org/En/CSS/Box-sizing",
      "title":"MDN article"
    },
    {
      "url":"http://www.456bereastreet.com/archive/201104/controlling_width_with_css3_box-sizing/",
      "title":"Blog post"
    },
    {
      "url":"https://github.com/Schepp/box-sizing-polyfill",
      "title":"Polyfill for IE"
    },
    {
      "url":"http://css-tricks.com/box-sizing/",
      "title":"CSS Tricks"
    },
    {
      "url":"http://docs.webplatform.org/wiki/css/properties/box-sizing",
      "title":"WebPlatform Docs"
    }
  ],
  "bugs":[
    {
      "description":"Android browsers do not calculate correctly the dimensions (width and height) of the HTML select element."
    },
    {
      "description":"Safari 6.0.x does not use box-sizing on elements with display: table;"
    },
    {
      "description":"IE9 will subtract the width of the scrollbar to the width of the element when set to position: absolute / fixed , overflow: auto / overflow-y: scroll"
    },
    {
      "description":"IE 8 ignores `box-sizing: border-box` if min/max-width/height is used."
    },
    {
      "description":"Chrome has problems selecting options from the `select` element when using `box-sizing: border-box` and browser zoom level is less than 100%."
    },
    {
      "description":"In IE8, the min-width property applies to `content-box` even if `box-sizing` is set to `border-box`."
    }
  ],
  "categories":[
    "CSS3"
  ],
  "stats":{
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      "6":"p",
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      "8":"y",
      "9":"y",
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    "edge":{
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      "7.0-7.1":"y",
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    "android":{
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      "4.4":"y",
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  "notes":"Firefox currently also supports the `padding-box` in addition to `content-box` and `border-box`, though this value has been removed from the specification.",
  "notes_by_num":{
    
  },
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  "shown":true
}

},{}],103:[function(require,module,exports){
module.exports={
  "title":"CSS3 Cursors: grab & grabbing",
  "description":"Support for `grab`, `grabbing` values for the CSS3 `cursor` property.",
  "spec":"http://www.w3.org/TR/css3-ui/#cursor",
  "status":"cr",
  "links":[
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/cursor",
      "title":"MDN Documentation"
    }
  ],
  "bugs":[
    
  ],
  "categories":[
    "CSS3"
  ],
  "stats":{
    "ie":{
      "5.5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
      "10":"n",
      "11":"n"
    },
    "edge":{
      "12":"n",
      "13":"n",
      "14":"n"
    },
    "firefox":{
      "2":"y x",
      "3":"y x",
      "3.5":"y x",
      "3.6":"y x",
      "4":"y x",
      "5":"y x",
      "6":"y x",
      "7":"y x",
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    "chrome":{
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  "notes":"",
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  },
  "usage_perc_y":38.8,
  "usage_perc_a":0,
  "ucprefix":false,
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  "keywords":"cursors, pointers, grab, grabbing",
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  "webkit_id":"",
  "shown":false
}

},{}],104:[function(require,module,exports){
module.exports={
  "title":"CSS3 Cursors: zoom-in & zoom-out",
  "description":"Support for `zoom-in`, `zoom-out` values for the CSS3 `cursor` property.",
  "spec":"http://www.w3.org/TR/css3-ui/#cursor",
  "status":"cr",
  "links":[
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/cursor",
      "title":"MDN Documentation"
    }
  ],
  "bugs":[
    
  ],
  "categories":[
    "CSS3"
  ],
  "stats":{
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    "edge":{
      "12":"y",
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    "firefox":{
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  "keywords":"cursors, pointers",
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  "shown":true
}

},{}],105:[function(require,module,exports){
module.exports={
  "title":"CSS3 tab-size",
  "description":"Method of customizing the width of the tab character. Only effective using 'white-space: pre' or 'white-space: pre-wrap'.",
  "spec":"http://www.w3.org/TR/css3-text/#tab-size",
  "status":"wd",
  "links":[
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/tab-size",
      "title":"MDN article"
    },
    {
      "url":"https://wpdev.uservoice.com/forums/257854-microsoft-edge-developer/suggestions/6524689-tab-size-property",
      "title":"Microsoft Edge feature request on UserVoice"
    }
  ],
  "bugs":[
    {
      "description":"Firefox [does not yet](https://bugzilla.mozilla.org/show_bug.cgi?id=943918) support `<length>` values"
    }
  ],
  "categories":[
    "CSS3"
  ],
  "stats":{
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      "7":"n",
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      "9":"n",
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    "edge":{
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  },
  "notes":"",
  "notes_by_num":{
    "1":"Partial refers to supporting `<integer>` but not `<length>` values."
  },
  "usage_perc_y":54.75,
  "usage_perc_a":25.9,
  "ucprefix":false,
  "parent":"",
  "keywords":"tab-size,tab-width",
  "ie_id":"csstabsizeproperty",
  "chrome_id":"",
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  "shown":true
}

},{}],106:[function(require,module,exports){
module.exports={
  "title":"Flexible Box Layout Module",
  "description":"Method of positioning elements in horizontal or vertical stacks. Support includes the support for the all properties prefixed with `flex` as well as `display: flex`, `display: inline-flex`, `align-content`, `align-items`, `align-self`, `justify-content` and `order`.",
  "spec":"http://www.w3.org/TR/css3-flexbox/",
  "status":"cr",
  "links":[
    {
      "url":"http://bennettfeely.com/flexplorer/",
      "title":"Flexbox CSS generator"
    },
    {
      "url":"http://www.adobe.com/devnet/html5/articles/working-with-flexbox-the-new-spec.html",
      "title":"Article on using the latest spec"
    },
    {
      "url":"https://dev.opera.com/articles/view/advanced-cross-browser-flexbox/",
      "title":"Tutorial on cross-browser support"
    },
    {
      "url":"http://philipwalton.github.io/solved-by-flexbox/",
      "title":"Examples on how to solve common layout problems with flexbox"
    },
    {
      "url":"http://css-tricks.com/snippets/css/a-guide-to-flexbox/",
      "title":"A Complete Guide to Flexbox"
    },
    {
      "url":"http://the-echoplex.net/flexyboxes/",
      "title":"Flexbox playground and code generator"
    },
    {
      "url":"https://github.com/philipwalton/flexbugs",
      "title":"Flexbugs: Repo for flexbox bugs"
    },
    {
      "url":"https://github.com/10up/flexibility/",
      "title":"10up Open Sources IE 8 and 9 Support for Flexbox"
    },
    {
      "url":"https://github.com/vadimyer/ecligrid",
      "title":"Ecligrid - Mobile first flexbox grid system"
    }
  ],
  "bugs":[
    {
      "description":"In IE10 the default value for `flex` is `0 0 auto` rather than `0 1 auto` as defined in the latest spec."
    },
    {
      "description":"In Safari, the height of (non flex) children are not recognized in percentages. However other browsers recognize and scale the children based on percentage heights. ([See bug](https://bugs.webkit.org/show_bug.cgi?id=137730)) The bug also appeared in Chrome but was fixed in [Chrome 51](http://crbug.com/341310)"
    },
    {
      "description":"Firefox does not support [Flexbox in button elements](https://bugzilla.mozilla.org/show_bug.cgi?id=984869#c2)"
    },
    {
      "description":"[Flexbugs](https://github.com/philipwalton/flexbugs): community-curated list of flexbox issues and cross-browser workarounds for them"
    },
    {
      "description":"In IE 10, setting `-ms-flex-flow: row wrap` will not wrap unless `display: inline-block` is set on child elements."
    },
    {
      "description":"IE 11 does not vertically align items correctly when `min-height` is used [see bug](https://connect.microsoft.com/IE/feedback/details/816293/ie11-flexbox-with-min-height-not-vertically-aligning-with-align-items-center)"
    },
    {
      "description":"In IE10 and IE11, containers with `display: flex` and `flex-direction: column` will not properly calculate their flexed childrens' sizes if the container has `min-height` but no explicit `height` property. [See bug](https://connect.microsoft.com/IE/feedback/details/802625/min-height-and-flexbox-flex-direction-column-dont-work-together-in-ie-10-11-preview)."
    },
    {
      "description":"IE 11 requires a unit to be added to the third argument, the flex-basis property [see MSFT documentation](https://msdn.microsoft.com/en-us/library/dn254946%28v=vs.85%29.aspx)"
    },
    {
      "description":"Safari uses min/max width/height declarations for actually rendering the size of flex items, but it ignores those values when calculating how many items should be on a single line of a multi-line flex container. Instead, it simply uses the item's flex-basis value, or its width if the flex basis is set to auto. [see bug](https://bugs.webkit.org/show_bug.cgi?id=136041)"
    }
  ],
  "categories":[
    "CSS3"
  ],
  "stats":{
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      "8":"n",
      "9":"n",
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      "8":"y x",
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      "12":"n",
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    },
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    },
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  },
  "notes":"Most partial support refers to supporting an [older version](http://www.w3.org/TR/2009/WD-css3-flexbox-20090723/) of the specification or an [older syntax](http://www.w3.org/TR/2012/WD-css3-flexbox-20120322/).",
  "notes_by_num":{
    "1":"Only supports the [old flexbox](http://www.w3.org/TR/2009/WD-css3-flexbox-20090723) specification and does not support wrapping.",
    "2":"Only supports the [2012 syntax](http://www.w3.org/TR/2012/WD-css3-flexbox-20120322/)",
    "3":"Does not support flex-wrap or flex-flow properties",
    "4":"Partial support is due to large amount of bugs present (see known issues)"
  },
  "usage_perc_y":82.18,
  "usage_perc_a":14.94,
  "ucprefix":false,
  "parent":"",
  "keywords":"flex-box,flex-direction,flex-wrap,flex-flow,flex-grow,flex-basis,display:flex,flex box",
  "ie_id":"flexbox",
  "chrome_id":"4837301406400512",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}

},{}],107:[function(require,module,exports){
module.exports={
  "title":"CSS font-feature-settings",
  "description":"Method of applying advanced typographic and language-specific font features to supported OpenType fonts.",
  "spec":"http://w3.org/TR/css3-fonts/#font-rend-props",
  "status":"cr",
  "links":[
    {
      "url":"http://ie.microsoft.com/testdrive/Graphics/opentype/",
      "title":"Demo pages (IE/Firefox only)"
    },
    {
      "url":"http://hacks.mozilla.org/2010/11/firefox-4-font-feature-support/",
      "title":"Mozilla hacks article"
    },
    {
      "url":"http://html5accessibility.com/",
      "title":"Detailed tables on accessability support"
    },
    {
      "url":"http://docs.webplatform.org/wiki/css/properties/font-feature-settings",
      "title":"WebPlatform Docs"
    },
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/font-feature-settings",
      "title":"Mozilla Developer Network"
    },
    {
      "url":"https://www.microsoft.com/typography/otspec/featuretags.htm",
      "title":"OpenType layout feature tag registry"
    },
    {
      "url":"http://help.typekit.com/customer/portal/articles/1789736-syntax-for-opentype-features-in-css#salt",
      "title":"Syntax for OpenType features in CSS (Adobe Typekit Help)"
    }
  ],
  "bugs":[
    {
      "description":"IE10 and 11 do not always appear to support the `ss01` value correctly."
    },
    {
      "description":"IE10 and 11 on Windows 7 [can hide the text](http://stackoverflow.com/questions/22151835/msie-10-web-font-and-font-feature-settings-causes-invisible-text) under certain circumstances."
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  "notes":"Whenever possible, font-variant shorthand property or an associated longhand property, font-variant-ligatures, font-variant-caps, font-variant-east-asian, font-variant-alternates, font-variant-numeric or font-variant-position should be used. This property is a low-level feature designed to handle special cases where no other way to enable or access an OpenType font feature exists. In particular, this CSS property shouldn't be used to enable small caps.",
  "notes_by_num":{
    "1":"From Gecko 2.0 (Firefox 4.0) to Gecko 14.0 (Firefox 14.0) included, Gecko supported an older syntax, slightly different from the modern one: http://hacks.mozilla.org/2010/11/firefox-4-font-feature-support/",
    "2":"Partial support in older Chrome versions refers to lacking support in Mac OS X."
  },
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  "ucprefix":false,
  "parent":"",
  "keywords":"font-feature,font-feature-settings,kern,kerning,font-variant-alternates,ligatures,font-variant-ligatures",
  "ie_id":"",
  "chrome_id":"",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}

},{}],108:[function(require,module,exports){
module.exports={
  "title":"Full Screen API",
  "description":"API for allowing content (like a video or canvas element) to take up the entire screen.",
  "spec":"https://fullscreen.spec.whatwg.org/",
  "status":"ls",
  "links":[
    {
      "url":"https://developer.mozilla.org/en/DOM/Using_full-screen_mode",
      "title":"MDN article"
    },
    {
      "url":"http://jlongster.com/2011/11/21/canvas.html",
      "title":"Blog post"
    },
    {
      "url":"http://hacks.mozilla.org/2012/01/using-the-fullscreen-api-in-web-browsers/",
      "title":"Mozilla hacks article"
    },
    {
      "url":"http://docs.webplatform.org/wiki/dom/Element/requestFullscreen",
      "title":"WebPlatform Docs"
    }
  ],
  "bugs":[
    {
      "description":"IE 11 doesn't allow going to fullscreen mode when the event that triggers `msRequestFullscreen()` is a `keydown` or `pointerdown` event (`keypress` and `click` do work)"
    },
    {
      "description":"Safari blocks access to keyboard events in fullscreen mode (as a security measure)."
    },
    {
      "description":"Safari doesn't support stacking, meaning only one element can be set to full screen. `webkitRequestFullScreen()` is ignored for other elements and no error event is dispatched."
    },
    {
      "description":"IE 11 does not allow scrolling when document.documentElement is set to full screen."
    },
    {
      "description":"IE 11 does not properly support fullscreen when opening from an iframe."
    },
    {
      "description":"Opera 12.1 uses the older specificaton's `:fullscreen-ancestor` pseudo-class instead of the  the `::backdrop` pseudo-element."
    }
  ],
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    "1":"Partial support refers to supporting an earlier draft of the spec.",
    "2":"Partial support refers to not supporting `::backdrop`, and supporting the old `:full-screen` syntax rather than the standard `:fullscreen`.",
    "3":"Partial support refers to not returning a Promise, as specified in the latest version of the spec.",
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  "shown":true
}

},{}],109:[function(require,module,exports){
module.exports={
  "title":"Intrinsic & Extrinsic Sizing",
  "description":"Allows for the heights and widths to be specified in intrinsic values using the `fill`, `max-content`, `min-content`, and `fit-content` properties.",
  "spec":"http://www.w3.org/TR/css3-sizing/",
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    {
      "url":"http://demosthenes.info/blog/662/Design-From-the-Inside-Out-With-CSS-MinContent",
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    }
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      "6.1":"a x #1 #3",
      "7":"a x #1 #3",
      "7.1":"a x #1 #3",
      "8":"a x #1 #3",
      "9":"a x #3",
      "9.1":"a x #3",
      "10":"a x #3",
      "TP":"a x #3"
    },
    "opera":{
      "9":"n",
      "9.5-9.6":"n",
      "10.0-10.1":"n",
      "10.5":"n",
      "10.6":"n",
      "11":"n",
      "11.1":"n",
      "11.5":"n",
      "11.6":"n",
      "12":"n",
      "12.1":"n",
      "15":"y x #3",
      "16":"y x #3",
      "17":"y x #3",
      "18":"y x #3",
      "19":"y x #3",
      "20":"y x #3",
      "21":"y x #3",
      "22":"y x #3",
      "23":"y x #3",
      "24":"y x #3",
      "25":"y x #3",
      "26":"y x #3",
      "27":"y x #3",
      "28":"y x #3",
      "29":"y x #3",
      "30":"y x #3",
      "31":"y x #3",
      "32":"y x #3",
      "33":"y #3 #4",
      "34":"y #3",
      "35":"y #3 #4",
      "36":"y #3 #4",
      "37":"y #3 #4",
      "38":"y #3 #4",
      "39":"y #3 #4",
      "40":"y #3 #4",
      "41":"y #3 #4",
      "42":"y #3 #4",
      "43":"y #3 #4"
    },
    "ios_saf":{
      "3.2":"n",
      "4.0-4.1":"n",
      "4.2-4.3":"n",
      "5.0-5.1":"n",
      "6.0-6.1":"n",
      "7.0-7.1":"a x #1 #3",
      "8":"a x #1 #3",
      "8.1-8.4":"a x #1 #3",
      "9.0-9.2":"a x #3",
      "9.3":"a x #3",
      "10":"a x #3"
    },
    "op_mini":{
      "all":"n"
    },
    "android":{
      "2.1":"n",
      "2.2":"n",
      "2.3":"n",
      "3":"n",
      "4":"n",
      "4.1":"n",
      "4.2-4.3":"n",
      "4.4":"y x #3",
      "4.4.3-4.4.4":"y x #3",
      "53":"y #3 #4"
    },
    "bb":{
      "7":"n",
      "10":"y x #3"
    },
    "op_mob":{
      "10":"n",
      "11":"n",
      "11.1":"n",
      "11.5":"n",
      "12":"n",
      "12.1":"n",
      "37":"y #3 #4"
    },
    "and_chr":{
      "53":"y #3 #4"
    },
    "and_ff":{
      "49":"a x #1 #2 #3"
    },
    "ie_mob":{
      "10":"n",
      "11":"n"
    },
    "and_uc":{
      "11":"n"
    },
    "samsung":{
      "4":"y x #3"
    }
  },
  "notes":"Prefixes are on the values, not the property names (e.g. -webkit-min-content)\r\n\r\nOlder webkit browsers also support the unofficial `intrinsic` value which acts the same as `max-content`.",
  "notes_by_num":{
    "1":"Does not support for height/min-height/max-height property, only width. [see test case](http://codepen.io/shshaw/pen/Kiwaz) [Firefox bug](https://bugzilla.mozilla.org/show_bug.cgi?id=567039)",
    "2":"Firefox currently supports the \"-moz-available\" property rather than \"-moz-fill\".",
    "3":"Does not support for \"flex-basis\" property. [see specs](http://www.w3.org/TR/2015/WD-css-flexbox-1-20150514/#flex-basis-property).\r\n[Blink bug](https://codereview.chromium.org/1304853002/),[Firefox bug](https://bugzilla.mozilla.org/show_bug.cgi?id=1055887)",
    "4":"This does not yet unprefix fill-available (aka fill)[See bug](https://chromium.googlesource.com/chromium/blink.git/+/bf119cdfece210e69c9a99af06f1b9981e2a1bc2), because the [CSSWG](https://lists.w3.org/Archives/Public/www-style/2015Aug/0127.html) is not ready for that yet."
  },
  "usage_perc_y":57.85,
  "usage_perc_a":18.5,
  "ucprefix":false,
  "parent":"",
  "keywords":"fill,fill-available,max-content,min-content,fit-content,contain-floats,intrinsic,extrinsic,sizing",
  "ie_id":"cssintrinsicsizing",
  "chrome_id":"5901353784180736",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}

},{}],110:[function(require,module,exports){
module.exports={
  "title":"CSS3 Multiple column layout",
  "description":"Method of flowing information in multiple columns",
  "spec":"http://www.w3.org/TR/css3-multicol/",
  "status":"cr",
  "links":[
    {
      "url":"https://dev.opera.com/articles/view/css3-multi-column-layout/",
      "title":"Dev.Opera article"
    },
    {
      "url":"http://webdesign.tutsplus.com/tutorials/htmlcss-tutorials/an-introduction-to-the-css3-multiple-column-layout-module/",
      "title":"Introduction page"
    },
    {
      "url":"http://docs.webplatform.org/wiki/css/properties/column-width",
      "title":"WebPlatform Docs"
    },
    {
      "url":"https://github.com/hamsterbacke23/multicolumn-polyfill",
      "title":"Polyfill"
    }
  ],
  "bugs":[
    {
      "description":"In Firefox, the property `column-span` (or `-moz-column-span`) does not yet work. See [the bug](https://bugzilla.mozilla.org/show_bug.cgi?id=616436)."
    },
    {
      "description":"Chrome is reported to incorrectly calculate the container height, and often breaks on margins, padding, and can display 1px of the next column at the bottom of the previous column. Part of these issues can be solved by adding `-webkit-perspective:1;` to the column container. This creates a new stacking context for the container, and apparently causes chrome to (re)calculate column layout.\r\n"
    },
    {
      "description":"Browsers behave differently when flowing `ol` list numbers in columns: IE and Safari only show numbers for the first column. Chrome does not show any numbers. Only Firefox behaves as expected with numbers showing for all items."
    },
    {
      "description":"IE has been reported to incorrectly break on elements across columns when having more than 3 columns.\r\n"
    },
    {
      "description":"IE 10 has a bug where text-shadow doesn't work when used inside columns [see testcase](https://jsfiddle.net/0bwwrtda/)\r\n"
    },
    {
      "description":"Firefox does not split tables into columns"
    },
    {
      "description":"Firefox and Chrome do not support columns on the <fieldset> element [see bug](https://bugzilla.mozilla.org/show_bug.cgi?id=727164)"
    },
    {
      "description":"Safari 5-8 is known to render columns [less evenly](http://stackoverflow.com/questions/14148078/safari-column-count-differs-from-firefox-and-chrome) than other browsers"
    }
  ],
  "categories":[
    "CSS3"
  ],
  "stats":{
    "ie":{
      "5.5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
      "10":"y",
      "11":"y"
    },
    "edge":{
      "12":"y",
      "13":"y",
      "14":"y"
    },
    "firefox":{
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      "3":"a x",
      "3.5":"a x",
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      "5":"a x",
      "6":"a x",
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    },
    "chrome":{
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      "6":"a x",
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      "7":"a x",
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      "8":"a x",
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      "10":"a",
      "TP":"a"
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    "opera":{
      "9":"n",
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      "10.5":"n",
      "10.6":"n",
      "11":"n",
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    "ios_saf":{
      "3.2":"a x",
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      "5.0-5.1":"a x",
      "6.0-6.1":"a x",
      "7.0-7.1":"a x",
      "8":"a x",
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      "9.0-9.2":"a",
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      "10":"a"
    },
    "op_mini":{
      "all":"y"
    },
    "android":{
      "2.1":"a x",
      "2.2":"a x",
      "2.3":"a x",
      "3":"a x",
      "4":"a x",
      "4.1":"a x",
      "4.2-4.3":"a x",
      "4.4":"a x",
      "4.4.3-4.4.4":"a x",
      "53":"a x"
    },
    "bb":{
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      "10":"a x"
    },
    "op_mob":{
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    "and_chr":{
      "53":"a"
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    "and_ff":{
      "49":"a x"
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    "ie_mob":{
      "10":"y",
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    "and_uc":{
      "11":"a x"
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    "samsung":{
      "4":"a x"
    }
  },
  "notes":"Partial support refers to not supporting the `break-before`, `break-after`, `break-inside` properties. WebKit- and Blink-based browsers do have equivalent support for the non-standard `-webkit-column-break-*` properties to accomplish the same result (but only the `auto` and `always` values). Firefox does not support `break-*`.",
  "notes_by_num":{
    
  },
  "usage_perc_y":10.49,
  "usage_perc_a":86.69,
  "ucprefix":false,
  "parent":"",
  "keywords":"column-count,column-width,column-gap,column-rule,column-span,column-fill",
  "ie_id":"multicolumnfullsupport",
  "chrome_id":"6526151266664448,5630943616303104",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}

},{}],111:[function(require,module,exports){
module.exports={
  "title":"CSS3 object-fit/object-position",
  "description":"Method of specifying how an object (image or video) should fit inside its box. object-fit options include \"contain\" (fit according to aspect ratio), \"fill\" (stretches object to fill) and \"cover\" (overflows box but maintains ratio), where object-position allows the object to be repositioned like background-image does.",
  "spec":"http://www.w3.org/TR/css3-images/",
  "status":"cr",
  "links":[
    {
      "url":"https://dev.opera.com/articles/view/css3-object-fit-object-position/",
      "title":"Dev.Opera article"
    },
    {
      "url":"http://docs.webplatform.org/wiki/css/properties/object-fit",
      "title":"WebPlatform Docs"
    },
    {
      "url":"https://github.com/bfred-it/object-fit-images/",
      "title":"object-fit-images Polyfill for IE & Edge"
    }
  ],
  "bugs":[
    
  ],
  "categories":[
    "CSS3"
  ],
  "stats":{
    "ie":{
      "5.5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
      "10":"n",
      "11":"n"
    },
    "edge":{
      "12":"n",
      "13":"n",
      "14":"n"
    },
    "firefox":{
      "2":"n",
      "3":"n",
      "3.5":"n",
      "3.6":"n",
      "4":"n",
      "5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
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      "36":"y",
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      "50":"y",
      "51":"y",
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    },
    "chrome":{
      "4":"n",
      "5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
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      "31":"y",
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    },
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      "3.2":"n",
      "4":"n",
      "5":"n",
      "5.1":"n",
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      "7":"n",
      "7.1":"a #1",
      "8":"a #1",
      "9":"a #1",
      "9.1":"a #1",
      "10":"y",
      "TP":"y"
    },
    "opera":{
      "9":"n",
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      "10.6":"y x",
      "11":"y x",
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    },
    "ios_saf":{
      "3.2":"n",
      "4.0-4.1":"n",
      "4.2-4.3":"n",
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      "6.0-6.1":"n",
      "7.0-7.1":"n",
      "8":"a #1",
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      "9.0-9.2":"a #1",
      "9.3":"a #1",
      "10":"y"
    },
    "op_mini":{
      "all":"y x"
    },
    "android":{
      "2.1":"n",
      "2.2":"n",
      "2.3":"n",
      "3":"n",
      "4":"n",
      "4.1":"n",
      "4.2-4.3":"n",
      "4.4":"n",
      "4.4.3-4.4.4":"y",
      "53":"y"
    },
    "bb":{
      "7":"n",
      "10":"n"
    },
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      "11":"y x",
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    },
    "and_chr":{
      "53":"y"
    },
    "and_ff":{
      "49":"y"
    },
    "ie_mob":{
      "10":"n",
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    },
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      "11":"n"
    },
    "samsung":{
      "4":"y"
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  },
  "notes":"",
  "notes_by_num":{
    "1":"Partial support in Safari refers to support for `object-fit` but not `object-position`."
  },
  "usage_perc_y":74.55,
  "usage_perc_a":3.89,
  "ucprefix":false,
  "parent":"",
  "keywords":"objectfit,objectposition",
  "ie_id":"objectfitandobjectposition",
  "chrome_id":"5302669702856704",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}

},{}],112:[function(require,module,exports){
module.exports={
  "title":"Pointer events",
  "description":"This specification integrates various inputs from mice, touchscreens, and pens, making separate implementations no longer necessary and authoring for cross-device pointers easier. Not to be mistaken with the unrelated \"pointer-events\" CSS property.",
  "spec":"http://www.w3.org/TR/pointerevents/",
  "status":"rec",
  "links":[
    {
      "url":"http://blogs.msdn.com/b/ie/archive/2011/09/20/touch-input-for-ie10-and-metro-style-apps.aspx",
      "title":"Implementation of Pointer Events in IE10"
    },
    {
      "url":"http://blogs.msdn.com/b/eternalcoding/archive/2013/01/16/hand-js-a-polyfill-for-supporting-pointer-events-on-every-browser.aspx",
      "title":"Hand.js, the polyfill for browsers only supporting Touch Events"
    },
    {
      "url":"http://blogs.msdn.com/b/davrous/archive/2013/02/20/handling-touch-in-your-html5-apps-thanks-to-the-pointer-events-of-ie10-and-windows-8.aspx",
      "title":"Article & tutorial"
    },
    {
      "url":"http://deeptissuejs.com",
      "title":"Abstraction library for pointer events"
    },
    {
      "url":"https://github.com/jquery/PEP",
      "title":"PEP: Pointer Events Polyfill"
    }
  ],
  "bugs":[
    
  ],
  "categories":[
    "DOM",
    "JS API"
  ],
  "stats":{
    "ie":{
      "5.5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
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    },
    "edge":{
      "12":"y",
      "13":"y",
      "14":"y"
    },
    "firefox":{
      "2":"n",
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      "6":"p",
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  "notes_by_num":{
    "1":"Partial support in IE10 refers the lack of pointerenter and pointerleave events.",
    "2":"Firefox support is disabled by default and [only supports mouse input](https://hacks.mozilla.org/2015/08/pointer-events-now-in-firefox-nightly/). On Windows only, touch can be enabled with the `layers.async-pan-zoom.enabled` and `dom.w3c_touch_events.enabled` flags",
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  "ucprefix":false,
  "parent":"",
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  "chrome_id":"4504699138998272",
  "firefox_id":"pointer-events",
  "webkit_id":"",
  "shown":true
}

},{}],113:[function(require,module,exports){
module.exports={
  "title":"text-decoration styling",
  "description":"Method of defining the type, style and color of lines in the text-decoration property. These can be defined as shorthand (e.g. `text-decoration: line-through dashed blue`) or as single properties (e.g. `text-decoration-color: blue`)",
  "spec":"http://www.w3.org/TR/css-text-decor-3/#line-decoration",
  "status":"cr",
  "links":[
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/text-decoration-style",
      "title":"MDN Documentation for text-decoration-style"
    },
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/text-decoration-color",
      "title":"MDN Documentation for text-decoration-color"
    },
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/text-decoration-line",
      "title":"MDN Documentation for text-decoration-line"
    },
    {
      "url":"https://wpdev.uservoice.com/forums/257854-microsoft-edge-developer/suggestions/6514536-text-decoration-styling",
      "title":"Microsoft Edge feature request on UserVoice"
    },
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/text-decoration-skip",
      "title":"MDN Documentation for text-decoration-skip"
    }
  ],
  "bugs":[
    
  ],
  "categories":[
    "CSS3"
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  "notes":"All browsers support the CSS2 version of `text-decoration`, which matches only the `text-decoration-line` values (`underline`, etc.)",
  "notes_by_num":{
    "1":"Enabled in Chrome through the \"experimental Web Platform features\" flag in chrome://flags",
    "2":"Partial support in Safari refers to not supporting the text-decoration-style property.",
    "3":"Safari 8+ supports `-webkit-text-decoration-skip` with values `none` and `skip` (other values behave like `none` or `skip`)"
  },
  "usage_perc_y":6.96,
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  "ie_id":"",
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  "webkit_id":"",
  "shown":true
}

},{}],114:[function(require,module,exports){
module.exports={
  "title":"text-emphasis styling",
  "description":"Method of using small symbols next to each glyph to emphasize a run of text, commonly used in East Asian languages. The `text-emphasis` shorthand, and its `text-emphasis-style` and `text-emphasis-color` longhands, can be used to apply marks to the text. The `text-emphasis-position` property, which inherits separately, allows setting the emphasis marks' position with respect to the text.",
  "spec":"https://drafts.csswg.org/css-text-decor-3/#text-emphasis-property",
  "status":"cr",
  "links":[
    {
      "url":"https://github.com/zmmbreeze/jquery.emphasis/",
      "title":"A javascript fallback for CSS3 emphasis mark."
    },
    {
      "url":"https://wpdev.uservoice.com/forums/257854-microsoft-edge-developer/suggestions/6514536-text-decoration-styling",
      "title":"Microsoft Edge feature request on UserVoice"
    },
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/text-emphasis",
      "title":"Mozilla Developer Network"
    }
  ],
  "bugs":[
    {
      "description":"Chrome on Android occasionally has issues rendering emphasis glyphs correctly."
    }
  ],
  "categories":[
    "CSS3"
  ],
  "stats":{
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  "notes":"Some old WebKit browsers (like Chrome 24) support `-webkit-text-emphasis`, but does not support CJK languages and is therefore considered unsupported.",
  "notes_by_num":{
    "1":"Partial support refers to incorrect support for `-webkit-text-emphasis-position`. These browsers support `over` and `under` as values, but not the added `left` and `right` values required by the spec.",
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  "shown":true
}

},{}],115:[function(require,module,exports){
module.exports={
  "title":"CSS3 Text-overflow",
  "description":"Append ellipsis when text overflows its containing element",
  "spec":"http://www.w3.org/TR/css3-ui/#text-overflow",
  "status":"cr",
  "links":[
    {
      "url":"https://github.com/rmorse/AutoEllipsis",
      "title":"jQuery polyfill for Firefox"
    },
    {
      "url":"https://developer.mozilla.org/En/CSS/Text-overflow",
      "title":"MDN article"
    },
    {
      "url":"http://www.css3files.com/text/",
      "title":"Information page"
    },
    {
      "url":"https://raw.github.com/phiggins42/has.js/master/detect/css.js#css-text-overflow",
      "title":"has.js test"
    },
    {
      "url":"http://docs.webplatform.org/wiki/css/properties/text-overflow",
      "title":"WebPlatform Docs"
    }
  ],
  "bugs":[
    {
      "description":"Does not work on `select` elements work in Chrome and IE, only Firefox."
    },
    {
      "description":"Some Samsung-based browsers, have a bug with overflowing text when ellipsis is set and if `text-rendering` is not `auto`."
    },
    {
      "description":"Does not work in IE8 and IE9 on `<input type=\"text\">`"
    }
  ],
  "categories":[
    "CSS3"
  ],
  "stats":{
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      "6":"y",
      "7":"y",
      "8":"y",
      "9":"y",
      "10":"y",
      "11":"y"
    },
    "edge":{
      "12":"y",
      "13":"y",
      "14":"y"
    },
    "firefox":{
      "2":"p",
      "3":"p",
      "3.5":"p",
      "3.6":"p",
      "4":"p",
      "5":"p",
      "6":"p",
      "7":"y",
      "8":"y",
      "9":"y",
      "10":"y",
      "11":"y",
      "12":"y",
      "13":"y",
      "14":"y",
      "15":"y",
      "16":"y",
      "17":"y",
      "18":"y",
      "19":"y",
      "20":"y",
      "21":"y",
      "22":"y",
      "23":"y",
      "24":"y",
      "25":"y",
      "26":"y",
      "27":"y",
      "28":"y",
      "29":"y",
      "30":"y",
      "31":"y",
      "32":"y",
      "33":"y",
      "34":"y",
      "35":"y",
      "36":"y",
      "37":"y",
      "38":"y",
      "39":"y",
      "40":"y",
      "41":"y",
      "42":"y",
      "43":"y",
      "44":"y",
      "45":"y",
      "46":"y",
      "47":"y",
      "48":"y",
      "49":"y",
      "50":"y",
      "51":"y",
      "52":"y"
    },
    "chrome":{
      "4":"y",
      "5":"y",
      "6":"y",
      "7":"y",
      "8":"y",
      "9":"y",
      "10":"y",
      "11":"y",
      "12":"y",
      "13":"y",
      "14":"y",
      "15":"y",
      "16":"y",
      "17":"y",
      "18":"y",
      "19":"y",
      "20":"y",
      "21":"y",
      "22":"y",
      "23":"y",
      "24":"y",
      "25":"y",
      "26":"y",
      "27":"y",
      "28":"y",
      "29":"y",
      "30":"y",
      "31":"y",
      "32":"y",
      "33":"y",
      "34":"y",
      "35":"y",
      "36":"y",
      "37":"y",
      "38":"y",
      "39":"y",
      "40":"y",
      "41":"y",
      "42":"y",
      "43":"y",
      "44":"y",
      "45":"y",
      "46":"y",
      "47":"y",
      "48":"y",
      "49":"y",
      "50":"y",
      "51":"y",
      "52":"y",
      "53":"y",
      "54":"y",
      "55":"y",
      "56":"y",
      "57":"y"
    },
    "safari":{
      "3.1":"y",
      "3.2":"y",
      "4":"y",
      "5":"y",
      "5.1":"y",
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      "6.1":"y",
      "7":"y",
      "7.1":"y",
      "8":"y",
      "9":"y",
      "9.1":"y",
      "10":"y",
      "TP":"y"
    },
    "opera":{
      "9":"y x",
      "9.5-9.6":"y x",
      "10.0-10.1":"y x",
      "10.5":"y x",
      "10.6":"y x",
      "11":"y",
      "11.1":"y",
      "11.5":"y",
      "11.6":"y",
      "12":"y",
      "12.1":"y",
      "15":"y",
      "16":"y",
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      "19":"y",
      "20":"y",
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      "23":"y",
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      "25":"y",
      "26":"y",
      "27":"y",
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      "40":"y",
      "41":"y",
      "42":"y",
      "43":"y"
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    "ios_saf":{
      "3.2":"y",
      "4.0-4.1":"y",
      "4.2-4.3":"y",
      "5.0-5.1":"y",
      "6.0-6.1":"y",
      "7.0-7.1":"y",
      "8":"y",
      "8.1-8.4":"y",
      "9.0-9.2":"y",
      "9.3":"y",
      "10":"y"
    },
    "op_mini":{
      "all":"y"
    },
    "android":{
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      "2.2":"y",
      "2.3":"y",
      "3":"y",
      "4":"y",
      "4.1":"y",
      "4.2-4.3":"y",
      "4.4":"y",
      "4.4.3-4.4.4":"y",
      "53":"y"
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    "bb":{
      "7":"y",
      "10":"y"
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    "op_mob":{
      "10":"y x",
      "11":"y x",
      "11.1":"y x",
      "11.5":"y x",
      "12":"y x",
      "12.1":"y",
      "37":"y"
    },
    "and_chr":{
      "53":"y"
    },
    "and_ff":{
      "49":"y"
    },
    "ie_mob":{
      "10":"y",
      "11":"y"
    },
    "and_uc":{
      "11":"y"
    },
    "samsung":{
      "4":"y"
    }
  },
  "notes":"",
  "notes_by_num":{
    
  },
  "usage_perc_y":97.84,
  "usage_perc_a":0,
  "ucprefix":false,
  "parent":"",
  "keywords":"textoverflow,ellipsis",
  "ie_id":"",
  "chrome_id":"",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}

},{}],116:[function(require,module,exports){
module.exports={
  "title":"CSS text-size-adjust",
  "description":"On mobile devices, the text-size-adjust CSS property allows Web authors to control if and how the text-inflating algorithm is applied to the textual content of the element it is applied to.",
  "spec":"http://dev.w3.org/csswg/css-size-adjust/",
  "status":"unoff",
  "links":[
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/text-size-adjust",
      "title":"MDN Docs"
    }
  ],
  "bugs":[
    
  ],
  "categories":[
    "CSS3"
  ],
  "stats":{
    "ie":{
      "5.5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
      "10":"n",
      "11":"n"
    },
    "edge":{
      "12":"n",
      "13":"n",
      "14":"n"
    },
    "firefox":{
      "2":"n",
      "3":"n",
      "3.5":"n",
      "3.6":"n",
      "4":"n",
      "5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
      "10":"n",
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      "32":"n",
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      "39":"n",
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      "41":"n",
      "42":"n",
      "43":"n",
      "44":"n",
      "45":"n",
      "46":"n",
      "47":"n",
      "48":"n",
      "49":"n",
      "50":"n",
      "51":"n",
      "52":"n"
    },
    "chrome":{
      "4":"n",
      "5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
      "10":"n",
      "11":"n",
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      "13":"n",
      "14":"n",
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      "17":"n",
      "18":"n",
      "19":"n",
      "20":"n",
      "21":"n",
      "22":"n",
      "23":"n",
      "24":"n",
      "25":"n",
      "26":"n #2",
      "27":"n",
      "28":"n",
      "29":"n",
      "30":"n",
      "31":"n",
      "32":"n",
      "33":"n",
      "34":"n",
      "35":"n",
      "36":"n",
      "37":"n",
      "38":"n",
      "39":"n",
      "40":"n",
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      "42":"n",
      "43":"n",
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      "46":"n",
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      "48":"n",
      "49":"n",
      "50":"n",
      "51":"n",
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      "53":"n",
      "54":"y",
      "55":"y",
      "56":"y",
      "57":"y"
    },
    "safari":{
      "3.1":"n",
      "3.2":"n",
      "4":"n",
      "5":"n",
      "5.1":"n #2",
      "6":"n",
      "6.1":"n",
      "7":"n",
      "7.1":"n",
      "8":"n",
      "9":"n",
      "9.1":"n",
      "10":"n",
      "TP":"n"
    },
    "opera":{
      "9":"n",
      "9.5-9.6":"n",
      "10.0-10.1":"n",
      "10.5":"n",
      "10.6":"n",
      "11":"n",
      "11.1":"n",
      "11.5":"n",
      "11.6":"n",
      "12":"n",
      "12.1":"n",
      "15":"n",
      "16":"n",
      "17":"n",
      "18":"n",
      "19":"n",
      "20":"n",
      "21":"n",
      "22":"n",
      "23":"n",
      "24":"n",
      "25":"n",
      "26":"n",
      "27":"n",
      "28":"n",
      "29":"n",
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      "34":"n",
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      "39":"n",
      "40":"n",
      "41":"n",
      "42":"n",
      "43":"n"
    },
    "ios_saf":{
      "3.2":"n",
      "4.0-4.1":"n",
      "4.2-4.3":"n",
      "5.0-5.1":"y x",
      "6.0-6.1":"y x",
      "7.0-7.1":"y x",
      "8":"y x",
      "8.1-8.4":"y x",
      "9.0-9.2":"y x",
      "9.3":"y x",
      "10":"y x"
    },
    "op_mini":{
      "all":"n"
    },
    "android":{
      "2.1":"n",
      "2.2":"n",
      "2.3":"n",
      "3":"n",
      "4":"n",
      "4.1":"n",
      "4.2-4.3":"n",
      "4.4":"n",
      "4.4.3-4.4.4":"n",
      "53":"n"
    },
    "bb":{
      "7":"n",
      "10":"n"
    },
    "op_mob":{
      "10":"n",
      "11":"n",
      "11.1":"n",
      "11.5":"n",
      "12":"n",
      "12.1":"n",
      "37":"n"
    },
    "and_chr":{
      "53":"n"
    },
    "and_ff":{
      "49":"y x"
    },
    "ie_mob":{
      "10":"y x #1",
      "11":"y x #1"
    },
    "and_uc":{
      "11":"y x"
    },
    "samsung":{
      "4":"n"
    }
  },
  "notes":"",
  "notes_by_num":{
    "1":"If the viewport size is set using a `<meta>` element, the `-ms-text-size-adjust` property is ignored. See [MSDN](https://msdn.microsoft.com/en-us/library/ie/dn793579%28v=vs.85%29.aspx)",
    "2":"Old versions of WebKit-based desktop browsers (Chrome<27, Safari<6) [suffer from a bug](https://bugs.webkit.org/show_bug.cgi?id=56543) where if `-webkit-text-size-adjust` is explicitly set to `none`, instead of ignoring the property, the browsers will prevent the user from zooming in or out on the webpage."
  },
  "usage_perc_y":23.69,
  "usage_perc_a":0,
  "ucprefix":false,
  "parent":"",
  "keywords":"",
  "ie_id":"",
  "chrome_id":"5730156303876096",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}

},{}],117:[function(require,module,exports){
module.exports={
  "title":"CSS3 2D Transforms",
  "description":"Method of transforming an element including rotating, scaling, etc. Includes support for `transform` as well as `transform-origin` properties.",
  "spec":"http://www.w3.org/TR/css3-2d-transforms/",
  "status":"wd",
  "links":[
    {
      "url":"http://www.westciv.com/tools/transforms/",
      "title":"Live editor"
    },
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/transform",
      "title":"MDN article"
    },
    {
      "url":"http://www.webresourcesdepot.com/cross-browser-css-transforms-csssandpaper/",
      "title":"Workaround script for IE"
    },
    {
      "url":"http://www.css3files.com/transform/",
      "title":"Information page"
    },
    {
      "url":"http://www.useragentman.com/IETransformsTranslator/",
      "title":"Converter for IE"
    },
    {
      "url":"https://raw.github.com/phiggins42/has.js/master/detect/css.js#css-transform",
      "title":"has.js test"
    },
    {
      "url":"http://docs.webplatform.org/wiki/css/transforms/transform",
      "title":"WebPlatform Docs"
    }
  ],
  "bugs":[
    {
      "description":"Scaling transforms in Android 2.3 fails to scale element background images."
    },
    {
      "description":"IE 10 and below does not support CSS transforms on SVG elements (though SVG transform attributes do work)."
    },
    {
      "description":"In IE9 the caret of a `textarea` disappears when you use translate."
    },
    {
      "description":"Firefox 42 and below do not support [`transform-origin` on SVG elements](https://bugzilla.mozilla.org/show_bug.cgi?id=923193). "
    }
  ],
  "categories":[
    "CSS3"
  ],
  "stats":{
    "ie":{
      "5.5":"n",
      "6":"p",
      "7":"p",
      "8":"p",
      "9":"y x",
      "10":"y",
      "11":"y"
    },
    "edge":{
      "12":"y",
      "13":"y",
      "14":"y"
    },
    "firefox":{
      "2":"n",
      "3":"n",
      "3.5":"y x",
      "3.6":"y x",
      "4":"y x",
      "5":"y x",
      "6":"y x",
      "7":"y x",
      "8":"y x",
      "9":"y x",
      "10":"y x",
      "11":"y x",
      "12":"y x",
      "13":"y x",
      "14":"y x",
      "15":"y x",
      "16":"y",
      "17":"y",
      "18":"y",
      "19":"y",
      "20":"y",
      "21":"y",
      "22":"y",
      "23":"y",
      "24":"y",
      "25":"y",
      "26":"y",
      "27":"y",
      "28":"y",
      "29":"y",
      "30":"y",
      "31":"y",
      "32":"y",
      "33":"y",
      "34":"y",
      "35":"y",
      "36":"y",
      "37":"y",
      "38":"y",
      "39":"y",
      "40":"y",
      "41":"y",
      "42":"y",
      "43":"y",
      "44":"y",
      "45":"y",
      "46":"y",
      "47":"y",
      "48":"y",
      "49":"y",
      "50":"y",
      "51":"y",
      "52":"y"
    },
    "chrome":{
      "4":"y x",
      "5":"y x",
      "6":"y x",
      "7":"y x",
      "8":"y x",
      "9":"y x",
      "10":"y x",
      "11":"y x",
      "12":"y x",
      "13":"y x",
      "14":"y x",
      "15":"y x",
      "16":"y x",
      "17":"y x",
      "18":"y x",
      "19":"y x",
      "20":"y x",
      "21":"y x",
      "22":"y x",
      "23":"y x",
      "24":"y x",
      "25":"y x",
      "26":"y x",
      "27":"y x",
      "28":"y x",
      "29":"y x",
      "30":"y x",
      "31":"y x",
      "32":"y x",
      "33":"y x",
      "34":"y x",
      "35":"y x",
      "36":"y",
      "37":"y",
      "38":"y",
      "39":"y",
      "40":"y",
      "41":"y",
      "42":"y",
      "43":"y",
      "44":"y",
      "45":"y",
      "46":"y",
      "47":"y",
      "48":"y",
      "49":"y",
      "50":"y",
      "51":"y",
      "52":"y",
      "53":"y",
      "54":"y",
      "55":"y",
      "56":"y",
      "57":"y"
    },
    "safari":{
      "3.1":"y x",
      "3.2":"y x",
      "4":"y x",
      "5":"y x",
      "5.1":"y x",
      "6":"y x",
      "6.1":"y x",
      "7":"y x",
      "7.1":"y x",
      "8":"y x",
      "9":"y",
      "9.1":"y",
      "10":"y",
      "TP":"y"
    },
    "opera":{
      "9":"n",
      "9.5-9.6":"n",
      "10.0-10.1":"n",
      "10.5":"y x",
      "10.6":"y x",
      "11":"y x",
      "11.1":"y x",
      "11.5":"y x",
      "11.6":"y x",
      "12":"y x",
      "12.1":"y",
      "15":"y x",
      "16":"y x",
      "17":"y x",
      "18":"y x",
      "19":"y x",
      "20":"y x",
      "21":"y x",
      "22":"y x",
      "23":"y",
      "24":"y",
      "25":"y",
      "26":"y",
      "27":"y",
      "28":"y",
      "29":"y",
      "30":"y",
      "31":"y",
      "32":"y",
      "33":"y",
      "34":"y",
      "35":"y",
      "36":"y",
      "37":"y",
      "38":"y",
      "39":"y",
      "40":"y",
      "41":"y",
      "42":"y",
      "43":"y"
    },
    "ios_saf":{
      "3.2":"y x",
      "4.0-4.1":"y x",
      "4.2-4.3":"y x",
      "5.0-5.1":"y x",
      "6.0-6.1":"y x",
      "7.0-7.1":"y x",
      "8":"y x",
      "8.1-8.4":"y x",
      "9.0-9.2":"y",
      "9.3":"y",
      "10":"y"
    },
    "op_mini":{
      "all":"n"
    },
    "android":{
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      "2.2":"y x",
      "2.3":"y x",
      "3":"y x",
      "4":"y x",
      "4.1":"y x",
      "4.2-4.3":"y x",
      "4.4":"y x",
      "4.4.3-4.4.4":"y x",
      "53":"y"
    },
    "bb":{
      "7":"y x",
      "10":"y x"
    },
    "op_mob":{
      "10":"n",
      "11":"y",
      "11.1":"y",
      "11.5":"y",
      "12":"y",
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      "37":"y"
    },
    "and_chr":{
      "53":"y"
    },
    "and_ff":{
      "49":"y"
    },
    "ie_mob":{
      "10":"y",
      "11":"y"
    },
    "and_uc":{
      "11":"y x"
    },
    "samsung":{
      "4":"y"
    }
  },
  "notes":"The scale transform can be emulated in IE < 9 using Microsoft's \"zoom\" extension, others are (not easily) possible using the MS Matrix filter",
  "notes_by_num":{
    
  },
  "usage_perc_y":93.34,
  "usage_perc_a":0,
  "ucprefix":false,
  "parent":"",
  "keywords":"transformation,translate,translatex,translatey,translatez,transform3d,rotation,rotate,scale,css-transforms,transform-origin,transform:rotate,transform:scale",
  "ie_id":"transforms",
  "chrome_id":"6437640580628480",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}

},{}],118:[function(require,module,exports){
module.exports={
  "title":"CSS3 3D Transforms",
  "description":"Method of transforming an element in the third dimension using the `transform` property. Includes support for the `perspective` property to set the perspective in z-space and the `backface-visibility` property to toggle display of the reverse side of a 3D-transformed element.",
  "spec":"http://www.w3.org/TR/css3-3d-transforms/",
  "status":"wd",
  "links":[
    {
      "url":"http://css3.bradshawenterprises.com/flip/",
      "title":"Multi-browser demo"
    },
    {
      "url":"http://hacks.mozilla.org/2011/10/css-3d-transformations-in-firefox-nightly/",
      "title":"Mozilla hacks article"
    },
    {
      "url":"http://thewebrocks.com/demos/3D-css-tester/",
      "title":"3D CSS Tester"
    },
    {
      "url":"https://raw.github.com/phiggins42/has.js/master/detect/css.js#css-transform",
      "title":"has.js test"
    },
    {
      "url":"http://docs.webplatform.org/wiki/css/transforms/transform",
      "title":"WebPlatform Docs"
    },
    {
      "url":"http://desandro.github.io/3dtransforms/",
      "title":"Intro to CSS 3D transforms"
    }
  ],
  "bugs":[
    {
      "description":"Some configurations of Linux and older Windows machines (those without WebGL support) have trouble with 3D transforms and will treat them as if `perspective` was set as `none`."
    },
    {
      "description":"Firefox on Windows [incorrectly renders plugin content within no-op 3D transforms](https://bugzilla.mozilla.org/show_bug.cgi?id=1048279)."
    },
    {
      "description":"The `perspective` property doesn't work on the `body` element in Firefox, it must be used on an inner element."
    },
    {
      "description":"Chrome has a (recently fixed) bug where combining `clip-path` and `backface-visibility` produces [visible noise](https://code.google.com/p/chromium/issues/detail?id=350724)."
    },
    {
      "description":"Transforms may break position:fixed styles of contained elements"
    }
  ],
  "categories":[
    "CSS3"
  ],
  "stats":{
    "ie":{
      "5.5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
      "10":"a #1",
      "11":"a #1"
    },
    "edge":{
      "12":"y",
      "13":"y",
      "14":"y"
    },
    "firefox":{
      "2":"n",
      "3":"n",
      "3.5":"n",
      "3.6":"n",
      "4":"n",
      "5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
      "10":"y x",
      "11":"y x",
      "12":"y x",
      "13":"y x",
      "14":"y x",
      "15":"y x",
      "16":"y",
      "17":"y",
      "18":"y",
      "19":"y",
      "20":"y",
      "21":"y",
      "22":"y",
      "23":"y",
      "24":"y",
      "25":"y",
      "26":"y",
      "27":"y",
      "28":"y",
      "29":"y",
      "30":"y",
      "31":"y",
      "32":"y",
      "33":"y",
      "34":"y",
      "35":"y",
      "36":"y",
      "37":"y",
      "38":"y",
      "39":"y",
      "40":"y",
      "41":"y",
      "42":"y",
      "43":"y",
      "44":"y",
      "45":"y",
      "46":"y",
      "47":"y",
      "48":"y",
      "49":"y",
      "50":"y",
      "51":"y",
      "52":"y"
    },
    "chrome":{
      "4":"n",
      "5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
      "10":"n",
      "11":"n",
      "12":"y x",
      "13":"y x",
      "14":"y x",
      "15":"y x",
      "16":"y x",
      "17":"y x",
      "18":"y x",
      "19":"y x",
      "20":"y x",
      "21":"y x",
      "22":"y x",
      "23":"y x",
      "24":"y x",
      "25":"y x",
      "26":"y x",
      "27":"y x",
      "28":"y x",
      "29":"y x",
      "30":"y x",
      "31":"y x",
      "32":"y x",
      "33":"y x",
      "34":"y x",
      "35":"y x",
      "36":"y",
      "37":"y",
      "38":"y",
      "39":"y",
      "40":"y",
      "41":"y",
      "42":"y",
      "43":"y",
      "44":"y",
      "45":"y",
      "46":"y",
      "47":"y",
      "48":"y",
      "49":"y",
      "50":"y",
      "51":"y",
      "52":"y",
      "53":"y",
      "54":"y",
      "55":"y",
      "56":"y",
      "57":"y"
    },
    "safari":{
      "3.1":"n",
      "3.2":"n",
      "4":"y x",
      "5":"y x",
      "5.1":"y x",
      "6":"y x",
      "6.1":"y x",
      "7":"y x",
      "7.1":"y x",
      "8":"y x",
      "9":"y #2",
      "9.1":"y #2",
      "10":"y #2",
      "TP":"y #2"
    },
    "opera":{
      "9":"n",
      "9.5-9.6":"n",
      "10.0-10.1":"n",
      "10.5":"n",
      "10.6":"n",
      "11":"n",
      "11.1":"n",
      "11.5":"n",
      "11.6":"n",
      "12":"n",
      "12.1":"n",
      "15":"y x",
      "16":"y x",
      "17":"y x",
      "18":"y x",
      "19":"y x",
      "20":"y x",
      "21":"y x",
      "22":"y x",
      "23":"y",
      "24":"y",
      "25":"y",
      "26":"y",
      "27":"y",
      "28":"y",
      "29":"y",
      "30":"y",
      "31":"y",
      "32":"y",
      "33":"y",
      "34":"y",
      "35":"y",
      "36":"y",
      "37":"y",
      "38":"y",
      "39":"y",
      "40":"y",
      "41":"y",
      "42":"y",
      "43":"y"
    },
    "ios_saf":{
      "3.2":"y x",
      "4.0-4.1":"y x",
      "4.2-4.3":"y x",
      "5.0-5.1":"y x",
      "6.0-6.1":"y x",
      "7.0-7.1":"y x",
      "8":"y x",
      "8.1-8.4":"y x",
      "9.0-9.2":"y",
      "9.3":"y",
      "10":"y"
    },
    "op_mini":{
      "all":"n"
    },
    "android":{
      "2.1":"n",
      "2.2":"n",
      "2.3":"n",
      "3":"y x",
      "4":"y x",
      "4.1":"y x",
      "4.2-4.3":"y x",
      "4.4":"y x",
      "4.4.3-4.4.4":"y x",
      "53":"y"
    },
    "bb":{
      "7":"y x",
      "10":"y x"
    },
    "op_mob":{
      "10":"n",
      "11":"n",
      "11.1":"n",
      "11.5":"n",
      "12":"n",
      "12.1":"n",
      "37":"y"
    },
    "and_chr":{
      "53":"y"
    },
    "and_ff":{
      "49":"y"
    },
    "ie_mob":{
      "10":"a #1",
      "11":"a #1"
    },
    "and_uc":{
      "11":"y x"
    },
    "samsung":{
      "4":"y"
    }
  },
  "notes":"",
  "notes_by_num":{
    "1":"Partial support in IE refers to not supporting [the transform-style: preserve-3d property](http://msdn.microsoft.com/en-us/library/ie/hh673529%28v=vs.85%29.aspx#the_ms_transform_style_property). This prevents nesting 3D transformed elements.",
    "2":"Safari 9 is reported to still require a prefix for the related `backface-visibility` property."
  },
  "usage_perc_y":87.89,
  "usage_perc_a":4.65,
  "ucprefix":false,
  "parent":"",
  "keywords":"css 3d,3dtransforms,translate3d,backface visibility,perspective,transform-origin,transform-style",
  "ie_id":"transforms,csstransformspreserve3d",
  "chrome_id":"6437640580628480",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}

},{}],119:[function(require,module,exports){
module.exports={
  "title":"CSS user-select: none",
  "description":"Method of preventing text/element selection using CSS. ",
  "spec":"https://drafts.csswg.org/css-ui-4/#valdef-user-select-none",
  "status":"wd",
  "links":[
    {
      "url":"https://developer.mozilla.org/en-US/docs/CSS/user-select",
      "title":"MDN article"
    },
    {
      "url":"http://css-tricks.com/almanac/properties/u/user-select/",
      "title":"CSS Tricks article"
    },
    {
      "url":"http://msdn.microsoft.com/en-us/library/ie/hh781492(v=vs.85).aspx",
      "title":"MSDN Documentation"
    }
  ],
  "bugs":[
    {
      "description":"iOS does not allow input elements to be focused (and thus prevents text input) when the element has `-webkit-user-select: none` set"
    },
    {
      "description":"Reported to not work in some manufacturer's versions of Android 4.0 and below, though confirmed to work in others."
    }
  ],
  "categories":[
    "CSS"
  ],
  "stats":{
    "ie":{
      "5.5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
      "10":"y x",
      "11":"y x"
    },
    "edge":{
      "12":"y x",
      "13":"y x",
      "14":"y x"
    },
    "firefox":{
      "2":"y x",
      "3":"y x",
      "3.5":"y x",
      "3.6":"y x",
      "4":"y x",
      "5":"y x",
      "6":"y x",
      "7":"y x",
      "8":"y x",
      "9":"y x",
      "10":"y x",
      "11":"y x",
      "12":"y x",
      "13":"y x",
      "14":"y x",
      "15":"y x",
      "16":"y x",
      "17":"y x",
      "18":"y x",
      "19":"y x",
      "20":"y x",
      "21":"y x",
      "22":"y x",
      "23":"y x",
      "24":"y x",
      "25":"y x",
      "26":"y x",
      "27":"y x",
      "28":"y x",
      "29":"y x",
      "30":"y x",
      "31":"y x",
      "32":"y x",
      "33":"y x",
      "34":"y x",
      "35":"y x",
      "36":"y x",
      "37":"y x",
      "38":"y x",
      "39":"y x",
      "40":"y x",
      "41":"y x",
      "42":"y x",
      "43":"y x",
      "44":"y x",
      "45":"y x",
      "46":"y x",
      "47":"y x",
      "48":"y x",
      "49":"y x",
      "50":"y x",
      "51":"y x",
      "52":"y x"
    },
    "chrome":{
      "4":"y x",
      "5":"y x",
      "6":"y x",
      "7":"y x",
      "8":"y x",
      "9":"y x",
      "10":"y x",
      "11":"y x",
      "12":"y x",
      "13":"y x",
      "14":"y x",
      "15":"y x",
      "16":"y x",
      "17":"y x",
      "18":"y x",
      "19":"y x",
      "20":"y x",
      "21":"y x",
      "22":"y x",
      "23":"y x",
      "24":"y x",
      "25":"y x",
      "26":"y x",
      "27":"y x",
      "28":"y x",
      "29":"y x",
      "30":"y x",
      "31":"y x",
      "32":"y x",
      "33":"y x",
      "34":"y x",
      "35":"y x",
      "36":"y x",
      "37":"y x",
      "38":"y x",
      "39":"y x",
      "40":"y x",
      "41":"y x",
      "42":"y x",
      "43":"y x",
      "44":"y x",
      "45":"y x",
      "46":"y x",
      "47":"y x",
      "48":"y x",
      "49":"y x",
      "50":"y x",
      "51":"y x",
      "52":"y x",
      "53":"y x",
      "54":"y",
      "55":"y",
      "56":"y",
      "57":"y"
    },
    "safari":{
      "3.1":"y x",
      "3.2":"y x",
      "4":"y x",
      "5":"y x",
      "5.1":"y x",
      "6":"y x",
      "6.1":"y x",
      "7":"y x",
      "7.1":"y x",
      "8":"y x",
      "9":"y x",
      "9.1":"y x",
      "10":"y x",
      "TP":"y x"
    },
    "opera":{
      "9":"n",
      "9.5-9.6":"n",
      "10.0-10.1":"n",
      "10.5":"n",
      "10.6":"n",
      "11":"n",
      "11.1":"n",
      "11.5":"n",
      "11.6":"n",
      "12":"n",
      "12.1":"n",
      "15":"y x",
      "16":"y x",
      "17":"y x",
      "18":"y x",
      "19":"y x",
      "20":"y x",
      "21":"y x",
      "22":"y x",
      "23":"y x",
      "24":"y x",
      "25":"y x",
      "26":"y x",
      "27":"y x",
      "28":"y x",
      "29":"y x",
      "30":"y x",
      "31":"y x",
      "32":"y x",
      "33":"y x",
      "34":"y x",
      "35":"y x",
      "36":"y x",
      "37":"y x",
      "38":"y x",
      "39":"y x",
      "40":"y x",
      "41":"y",
      "42":"y",
      "43":"y"
    },
    "ios_saf":{
      "3.2":"y x",
      "4.0-4.1":"y x",
      "4.2-4.3":"y x",
      "5.0-5.1":"y x",
      "6.0-6.1":"y x",
      "7.0-7.1":"y x",
      "8":"y x",
      "8.1-8.4":"y x",
      "9.0-9.2":"y x",
      "9.3":"y x",
      "10":"y x"
    },
    "op_mini":{
      "all":"n"
    },
    "android":{
      "2.1":"y x",
      "2.2":"y x",
      "2.3":"y x",
      "3":"y x",
      "4":"y x",
      "4.1":"y x",
      "4.2-4.3":"y x",
      "4.4":"y x",
      "4.4.3-4.4.4":"y x",
      "53":"y x"
    },
    "bb":{
      "7":"y x",
      "10":"y x"
    },
    "op_mob":{
      "10":"n",
      "11":"n",
      "11.1":"n",
      "11.5":"n",
      "12":"n",
      "12.1":"n",
      "37":"y x"
    },
    "and_chr":{
      "53":"y x"
    },
    "and_ff":{
      "49":"y x"
    },
    "ie_mob":{
      "10":"y x",
      "11":"y x"
    },
    "and_uc":{
      "11":"y x"
    },
    "samsung":{
      "4":"y x"
    }
  },
  "notes":"",
  "notes_by_num":{
    
  },
  "usage_perc_y":92.85,
  "usage_perc_a":0,
  "ucprefix":false,
  "parent":"",
  "keywords":"",
  "ie_id":"",
  "chrome_id":"",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}

},{}],120:[function(require,module,exports){
(function (process){
'use strict';
var escapeStringRegexp = require('escape-string-regexp');
var ansiStyles = require('ansi-styles');
var stripAnsi = require('strip-ansi');
var hasAnsi = require('has-ansi');
var supportsColor = require('supports-color');
var defineProps = Object.defineProperties;
var isSimpleWindowsTerm = process.platform === 'win32' && !/^xterm/i.test(process.env.TERM);

function Chalk(options) {
	// detect mode if not set manually
	this.enabled = !options || options.enabled === undefined ? supportsColor : options.enabled;
}

// use bright blue on Windows as the normal blue color is illegible
if (isSimpleWindowsTerm) {
	ansiStyles.blue.open = '\u001b[94m';
}

var styles = (function () {
	var ret = {};

	Object.keys(ansiStyles).forEach(function (key) {
		ansiStyles[key].closeRe = new RegExp(escapeStringRegexp(ansiStyles[key].close), 'g');

		ret[key] = {
			get: function () {
				return build.call(this, this._styles.concat(key));
			}
		};
	});

	return ret;
})();

var proto = defineProps(function chalk() {}, styles);

function build(_styles) {
	var builder = function () {
		return applyStyle.apply(builder, arguments);
	};

	builder._styles = _styles;
	builder.enabled = this.enabled;
	// __proto__ is used because we must return a function, but there is
	// no way to create a function with a different prototype.
	/* eslint-disable no-proto */
	builder.__proto__ = proto;

	return builder;
}

function applyStyle() {
	// support varags, but simply cast to string in case there's only one arg
	var args = arguments;
	var argsLen = args.length;
	var str = argsLen !== 0 && String(arguments[0]);

	if (argsLen > 1) {
		// don't slice `arguments`, it prevents v8 optimizations
		for (var a = 1; a < argsLen; a++) {
			str += ' ' + args[a];
		}
	}

	if (!this.enabled || !str) {
		return str;
	}

	var nestedStyles = this._styles;
	var i = nestedStyles.length;

	// Turns out that on Windows dimmed gray text becomes invisible in cmd.exe,
	// see https://github.com/chalk/chalk/issues/58
	// If we're on Windows and we're dealing with a gray color, temporarily make 'dim' a noop.
	var originalDim = ansiStyles.dim.open;
	if (isSimpleWindowsTerm && (nestedStyles.indexOf('gray') !== -1 || nestedStyles.indexOf('grey') !== -1)) {
		ansiStyles.dim.open = '';
	}

	while (i--) {
		var code = ansiStyles[nestedStyles[i]];

		// Replace any instances already present with a re-opening code
		// otherwise only the part of the string until said closing code
		// will be colored, and the rest will simply be 'plain'.
		str = code.open + str.replace(code.closeRe, code.open) + code.close;
	}

	// Reset the original 'dim' if we changed it to work around the Windows dimmed gray issue.
	ansiStyles.dim.open = originalDim;

	return str;
}

function init() {
	var ret = {};

	Object.keys(styles).forEach(function (name) {
		ret[name] = {
			get: function () {
				return build.call(this, [name]);
			}
		};
	});

	return ret;
}

defineProps(Chalk.prototype, init());

module.exports = new Chalk();
module.exports.styles = ansiStyles;
module.exports.hasColor = hasAnsi;
module.exports.stripColor = stripAnsi;
module.exports.supportsColor = supportsColor;

}).call(this,require('_process'))
},{"_process":160,"ansi-styles":61,"escape-string-regexp":122,"has-ansi":123,"strip-ansi":172,"supports-color":121}],121:[function(require,module,exports){
(function (process){
'use strict';
var argv = process.argv;

var terminator = argv.indexOf('--');
var hasFlag = function (flag) {
	flag = '--' + flag;
	var pos = argv.indexOf(flag);
	return pos !== -1 && (terminator !== -1 ? pos < terminator : true);
};

module.exports = (function () {
	if ('FORCE_COLOR' in process.env) {
		return true;
	}

	if (hasFlag('no-color') ||
		hasFlag('no-colors') ||
		hasFlag('color=false')) {
		return false;
	}

	if (hasFlag('color') ||
		hasFlag('colors') ||
		hasFlag('color=true') ||
		hasFlag('color=always')) {
		return true;
	}

	if (process.stdout && !process.stdout.isTTY) {
		return false;
	}

	if (process.platform === 'win32') {
		return true;
	}

	if ('COLORTERM' in process.env) {
		return true;
	}

	if (process.env.TERM === 'dumb') {
		return false;
	}

	if (/^screen|^xterm|^vt100|color|ansi|cygwin|linux/i.test(process.env.TERM)) {
		return true;
	}

	return false;
})();

}).call(this,require('_process'))
},{"_process":160}],122:[function(require,module,exports){
'use strict';

var matchOperatorsRe = /[|\\{}()[\]^$+*?.]/g;

module.exports = function (str) {
	if (typeof str !== 'string') {
		throw new TypeError('Expected a string');
	}

	return str.replace(matchOperatorsRe, '\\$&');
};

},{}],123:[function(require,module,exports){
'use strict';
var ansiRegex = require('ansi-regex');
var re = new RegExp(ansiRegex().source); // remove the `g` flag
module.exports = re.test.bind(re);

},{"ansi-regex":60}],124:[function(require,module,exports){
exports.read = function (buffer, offset, isLE, mLen, nBytes) {
  var e, m
  var eLen = nBytes * 8 - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var nBits = -7
  var i = isLE ? (nBytes - 1) : 0
  var d = isLE ? -1 : 1
  var s = buffer[offset + i]

  i += d

  e = s & ((1 << (-nBits)) - 1)
  s >>= (-nBits)
  nBits += eLen
  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}

  m = e & ((1 << (-nBits)) - 1)
  e >>= (-nBits)
  nBits += mLen
  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}

  if (e === 0) {
    e = 1 - eBias
  } else if (e === eMax) {
    return m ? NaN : ((s ? -1 : 1) * Infinity)
  } else {
    m = m + Math.pow(2, mLen)
    e = e - eBias
  }
  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
}

exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
  var e, m, c
  var eLen = nBytes * 8 - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
  var i = isLE ? 0 : (nBytes - 1)
  var d = isLE ? 1 : -1
  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0

  value = Math.abs(value)

  if (isNaN(value) || value === Infinity) {
    m = isNaN(value) ? 1 : 0
    e = eMax
  } else {
    e = Math.floor(Math.log(value) / Math.LN2)
    if (value * (c = Math.pow(2, -e)) < 1) {
      e--
      c *= 2
    }
    if (e + eBias >= 1) {
      value += rt / c
    } else {
      value += rt * Math.pow(2, 1 - eBias)
    }
    if (value * c >= 2) {
      e++
      c /= 2
    }

    if (e + eBias >= eMax) {
      m = 0
      e = eMax
    } else if (e + eBias >= 1) {
      m = (value * c - 1) * Math.pow(2, mLen)
      e = e + eBias
    } else {
      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
      e = 0
    }
  }

  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}

  e = (e << mLen) | m
  eLen += mLen
  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}

  buffer[offset + i - d] |= s * 128
}

},{}],125:[function(require,module,exports){
var toString = {}.toString;

module.exports = Array.isArray || function (arr) {
  return toString.call(arr) == '[object Array]';
};

},{}],126:[function(require,module,exports){
/*
 * $Id: base64.js,v 2.15 2014/04/05 12:58:57 dankogai Exp dankogai $
 *
 *  Licensed under the MIT license.
 *    http://opensource.org/licenses/mit-license
 *
 *  References:
 *    http://en.wikipedia.org/wiki/Base64
 */

(function(global) {
    'use strict';
    // existing version for noConflict()
    var _Base64 = global.Base64;
    var version = "2.1.9";
    // if node.js, we use Buffer
    var buffer;
    if (typeof module !== 'undefined' && module.exports) {
        try {
            buffer = require('buffer').Buffer;
        } catch (err) {}
    }
    // constants
    var b64chars
        = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
    var b64tab = function(bin) {
        var t = {};
        for (var i = 0, l = bin.length; i < l; i++) t[bin.charAt(i)] = i;
        return t;
    }(b64chars);
    var fromCharCode = String.fromCharCode;
    // encoder stuff
    var cb_utob = function(c) {
        if (c.length < 2) {
            var cc = c.charCodeAt(0);
            return cc < 0x80 ? c
                : cc < 0x800 ? (fromCharCode(0xc0 | (cc >>> 6))
                                + fromCharCode(0x80 | (cc & 0x3f)))
                : (fromCharCode(0xe0 | ((cc >>> 12) & 0x0f))
                   + fromCharCode(0x80 | ((cc >>>  6) & 0x3f))
                   + fromCharCode(0x80 | ( cc         & 0x3f)));
        } else {
            var cc = 0x10000
                + (c.charCodeAt(0) - 0xD800) * 0x400
                + (c.charCodeAt(1) - 0xDC00);
            return (fromCharCode(0xf0 | ((cc >>> 18) & 0x07))
                    + fromCharCode(0x80 | ((cc >>> 12) & 0x3f))
                    + fromCharCode(0x80 | ((cc >>>  6) & 0x3f))
                    + fromCharCode(0x80 | ( cc         & 0x3f)));
        }
    };
    var re_utob = /[\uD800-\uDBFF][\uDC00-\uDFFFF]|[^\x00-\x7F]/g;
    var utob = function(u) {
        return u.replace(re_utob, cb_utob);
    };
    var cb_encode = function(ccc) {
        var padlen = [0, 2, 1][ccc.length % 3],
        ord = ccc.charCodeAt(0) << 16
            | ((ccc.length > 1 ? ccc.charCodeAt(1) : 0) << 8)
            | ((ccc.length > 2 ? ccc.charCodeAt(2) : 0)),
        chars = [
            b64chars.charAt( ord >>> 18),
            b64chars.charAt((ord >>> 12) & 63),
            padlen >= 2 ? '=' : b64chars.charAt((ord >>> 6) & 63),
            padlen >= 1 ? '=' : b64chars.charAt(ord & 63)
        ];
        return chars.join('');
    };
    var btoa = global.btoa ? function(b) {
        return global.btoa(b);
    } : function(b) {
        return b.replace(/[\s\S]{1,3}/g, cb_encode);
    };
    var _encode = buffer ? function (u) {
        return (u.constructor === buffer.constructor ? u : new buffer(u))
        .toString('base64')
    }
    : function (u) { return btoa(utob(u)) }
    ;
    var encode = function(u, urisafe) {
        return !urisafe
            ? _encode(String(u))
            : _encode(String(u)).replace(/[+\/]/g, function(m0) {
                return m0 == '+' ? '-' : '_';
            }).replace(/=/g, '');
    };
    var encodeURI = function(u) { return encode(u, true) };
    // decoder stuff
    var re_btou = new RegExp([
        '[\xC0-\xDF][\x80-\xBF]',
        '[\xE0-\xEF][\x80-\xBF]{2}',
        '[\xF0-\xF7][\x80-\xBF]{3}'
    ].join('|'), 'g');
    var cb_btou = function(cccc) {
        switch(cccc.length) {
        case 4:
            var cp = ((0x07 & cccc.charCodeAt(0)) << 18)
                |    ((0x3f & cccc.charCodeAt(1)) << 12)
                |    ((0x3f & cccc.charCodeAt(2)) <<  6)
                |     (0x3f & cccc.charCodeAt(3)),
            offset = cp - 0x10000;
            return (fromCharCode((offset  >>> 10) + 0xD800)
                    + fromCharCode((offset & 0x3FF) + 0xDC00));
        case 3:
            return fromCharCode(
                ((0x0f & cccc.charCodeAt(0)) << 12)
                    | ((0x3f & cccc.charCodeAt(1)) << 6)
                    |  (0x3f & cccc.charCodeAt(2))
            );
        default:
            return  fromCharCode(
                ((0x1f & cccc.charCodeAt(0)) << 6)
                    |  (0x3f & cccc.charCodeAt(1))
            );
        }
    };
    var btou = function(b) {
        return b.replace(re_btou, cb_btou);
    };
    var cb_decode = function(cccc) {
        var len = cccc.length,
        padlen = len % 4,
        n = (len > 0 ? b64tab[cccc.charAt(0)] << 18 : 0)
            | (len > 1 ? b64tab[cccc.charAt(1)] << 12 : 0)
            | (len > 2 ? b64tab[cccc.charAt(2)] <<  6 : 0)
            | (len > 3 ? b64tab[cccc.charAt(3)]       : 0),
        chars = [
            fromCharCode( n >>> 16),
            fromCharCode((n >>>  8) & 0xff),
            fromCharCode( n         & 0xff)
        ];
        chars.length -= [0, 0, 2, 1][padlen];
        return chars.join('');
    };
    var atob = global.atob ? function(a) {
        return global.atob(a);
    } : function(a){
        return a.replace(/[\s\S]{1,4}/g, cb_decode);
    };
    var _decode = buffer ? function(a) {
        return (a.constructor === buffer.constructor
                ? a : new buffer(a, 'base64')).toString();
    }
    : function(a) { return btou(atob(a)) };
    var decode = function(a){
        return _decode(
            String(a).replace(/[-_]/g, function(m0) { return m0 == '-' ? '+' : '/' })
                .replace(/[^A-Za-z0-9\+\/]/g, '')
        );
    };
    var noConflict = function() {
        var Base64 = global.Base64;
        global.Base64 = _Base64;
        return Base64;
    };
    // export Base64
    global.Base64 = {
        VERSION: version,
        atob: atob,
        btoa: btoa,
        fromBase64: decode,
        toBase64: encode,
        utob: utob,
        encode: encode,
        encodeURI: encodeURI,
        btou: btou,
        decode: decode,
        noConflict: noConflict
    };
    // if ES5 is available, make Base64.extendString() available
    if (typeof Object.defineProperty === 'function') {
        var noEnum = function(v){
            return {value:v,enumerable:false,writable:true,configurable:true};
        };
        global.Base64.extendString = function () {
            Object.defineProperty(
                String.prototype, 'fromBase64', noEnum(function () {
                    return decode(this)
                }));
            Object.defineProperty(
                String.prototype, 'toBase64', noEnum(function (urisafe) {
                    return encode(this, urisafe)
                }));
            Object.defineProperty(
                String.prototype, 'toBase64URI', noEnum(function () {
                    return encode(this, true)
                }));
        };
    }
    // that's it!
    if (global['Meteor']) {
       Base64 = global.Base64; // for normal export in Meteor.js
    }
})(this);

},{"buffer":65}],127:[function(require,module,exports){
'use strict';
module.exports = {
  wrap: wrapRange,
  limit: limitRange,
  validate: validateRange,
  test: testRange,
  curry: curry,
  name: name
};

function wrapRange(min, max, value) {
  var maxLessMin = max - min;
  return ((value - min) % maxLessMin + maxLessMin) % maxLessMin + min;
}

function limitRange(min, max, value) {
  return Math.max(min, Math.min(max, value));
}

function validateRange(min, max, value, minExclusive, maxExclusive) {
  if (!testRange(min, max, value, minExclusive, maxExclusive)) {
    throw new Error(value + ' is outside of range [' + min + ',' + max + ')');
  }
  return value;
}

function testRange(min, max, value, minExclusive, maxExclusive) {
  return !(
       value < min ||
       value > max ||
       (maxExclusive && (value === max)) ||
       (minExclusive && (value === min))
  );
}

function name(min, max, minExcl, maxExcl) {
  return (minExcl ? '(' : '[') + min + ',' + max + (maxExcl ? ')' : ']');
}

function curry(min, max, minExclusive, maxExclusive) {
  var boundNameFn = name.bind(null, min, max, minExclusive, maxExclusive);
  return {
    wrap: wrapRange.bind(null, min, max),
    limit: limitRange.bind(null, min, max),
    validate: function(value) {
      return validateRange(min, max, value, minExclusive, maxExclusive);
    },
    test: function(value) {
      return testRange(min, max, value, minExclusive, maxExclusive);
    },
    toString: boundNameFn,
    name: boundNameFn
  };
}

},{}],128:[function(require,module,exports){
'use strict'

var abs = Math.abs
var round = Math.round

function almostEq(a, b) {
  return abs(a - b) <= 9.5367432e-7
}

//最大公约数 Greatest Common Divisor
function GCD(a, b) {
  if (almostEq(b, 0)) return a
  return GCD(b, a % b)
}

function findPrecision(n) {
  var e = 1

  while (!almostEq(round(n * e) / e, n)) {
    e *= 10
  }

  return e
}

function num2fraction(num) {
  if (num === 0 || num === '0') return '0'

  if (typeof num === 'string') {
    num = parseFloat(num)
  }


  var precision = findPrecision(num) //精确度
  var number = num * precision
  var gcd = abs(GCD(number, precision))

  //分子
  var numerator = number / gcd
  //分母
  var denominator = precision / gcd

  //分数
  return round(numerator) + '/' + round(denominator)
}

module.exports = num2fraction


},{}],129:[function(require,module,exports){
(function (process){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

// resolves . and .. elements in a path array with directory names there
// must be no slashes, empty elements, or device names (c:\) in the array
// (so also no leading and trailing slashes - it does not distinguish
// relative and absolute paths)
function normalizeArray(parts, allowAboveRoot) {
  // if the path tries to go above the root, `up` ends up > 0
  var up = 0;
  for (var i = parts.length - 1; i >= 0; i--) {
    var last = parts[i];
    if (last === '.') {
      parts.splice(i, 1);
    } else if (last === '..') {
      parts.splice(i, 1);
      up++;
    } else if (up) {
      parts.splice(i, 1);
      up--;
    }
  }

  // if the path is allowed to go above the root, restore leading ..s
  if (allowAboveRoot) {
    for (; up--; up) {
      parts.unshift('..');
    }
  }

  return parts;
}

// Split a filename into [root, dir, basename, ext], unix version
// 'root' is just a slash, or nothing.
var splitPathRe =
    /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
var splitPath = function(filename) {
  return splitPathRe.exec(filename).slice(1);
};

// path.resolve([from ...], to)
// posix version
exports.resolve = function() {
  var resolvedPath = '',
      resolvedAbsolute = false;

  for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
    var path = (i >= 0) ? arguments[i] : process.cwd();

    // Skip empty and invalid entries
    if (typeof path !== 'string') {
      throw new TypeError('Arguments to path.resolve must be strings');
    } else if (!path) {
      continue;
    }

    resolvedPath = path + '/' + resolvedPath;
    resolvedAbsolute = path.charAt(0) === '/';
  }

  // At this point the path should be resolved to a full absolute path, but
  // handle relative paths to be safe (might happen when process.cwd() fails)

  // Normalize the path
  resolvedPath = normalizeArray(filter(resolvedPath.split('/'), function(p) {
    return !!p;
  }), !resolvedAbsolute).join('/');

  return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
};

// path.normalize(path)
// posix version
exports.normalize = function(path) {
  var isAbsolute = exports.isAbsolute(path),
      trailingSlash = substr(path, -1) === '/';

  // Normalize the path
  path = normalizeArray(filter(path.split('/'), function(p) {
    return !!p;
  }), !isAbsolute).join('/');

  if (!path && !isAbsolute) {
    path = '.';
  }
  if (path && trailingSlash) {
    path += '/';
  }

  return (isAbsolute ? '/' : '') + path;
};

// posix version
exports.isAbsolute = function(path) {
  return path.charAt(0) === '/';
};

// posix version
exports.join = function() {
  var paths = Array.prototype.slice.call(arguments, 0);
  return exports.normalize(filter(paths, function(p, index) {
    if (typeof p !== 'string') {
      throw new TypeError('Arguments to path.join must be strings');
    }
    return p;
  }).join('/'));
};


// path.relative(from, to)
// posix version
exports.relative = function(from, to) {
  from = exports.resolve(from).substr(1);
  to = exports.resolve(to).substr(1);

  function trim(arr) {
    var start = 0;
    for (; start < arr.length; start++) {
      if (arr[start] !== '') break;
    }

    var end = arr.length - 1;
    for (; end >= 0; end--) {
      if (arr[end] !== '') break;
    }

    if (start > end) return [];
    return arr.slice(start, end - start + 1);
  }

  var fromParts = trim(from.split('/'));
  var toParts = trim(to.split('/'));

  var length = Math.min(fromParts.length, toParts.length);
  var samePartsLength = length;
  for (var i = 0; i < length; i++) {
    if (fromParts[i] !== toParts[i]) {
      samePartsLength = i;
      break;
    }
  }

  var outputParts = [];
  for (var i = samePartsLength; i < fromParts.length; i++) {
    outputParts.push('..');
  }

  outputParts = outputParts.concat(toParts.slice(samePartsLength));

  return outputParts.join('/');
};

exports.sep = '/';
exports.delimiter = ':';

exports.dirname = function(path) {
  var result = splitPath(path),
      root = result[0],
      dir = result[1];

  if (!root && !dir) {
    // No dirname whatsoever
    return '.';
  }

  if (dir) {
    // It has a dirname, strip trailing slash
    dir = dir.substr(0, dir.length - 1);
  }

  return root + dir;
};


exports.basename = function(path, ext) {
  var f = splitPath(path)[2];
  // TODO: make this comparison case-insensitive on windows?
  if (ext && f.substr(-1 * ext.length) === ext) {
    f = f.substr(0, f.length - ext.length);
  }
  return f;
};


exports.extname = function(path) {
  return splitPath(path)[3];
};

function filter (xs, f) {
    if (xs.filter) return xs.filter(f);
    var res = [];
    for (var i = 0; i < xs.length; i++) {
        if (f(xs[i], i, xs)) res.push(xs[i]);
    }
    return res;
}

// String.prototype.substr - negative index don't work in IE8
var substr = 'ab'.substr(-1) === 'b'
    ? function (str, start, len) { return str.substr(start, len) }
    : function (str, start, len) {
        if (start < 0) start = str.length + start;
        return str.substr(start, len);
    }
;

}).call(this,require('_process'))
},{"_process":160}],130:[function(require,module,exports){
var parse = require('./parse');
var walk = require('./walk');
var stringify = require('./stringify');

function ValueParser(value) {
    if (this instanceof ValueParser) {
        this.nodes = parse(value);
        return this;
    }
    return new ValueParser(value);
}

ValueParser.prototype.toString = function () {
    return Array.isArray(this.nodes) ? stringify(this.nodes) : '';
};

ValueParser.prototype.walk = function (cb, bubble) {
    walk(this.nodes, cb, bubble);
    return this;
};

ValueParser.unit = require('./unit');

ValueParser.walk = walk;

ValueParser.stringify = stringify;

module.exports = ValueParser;

},{"./parse":131,"./stringify":132,"./unit":133,"./walk":134}],131:[function(require,module,exports){
var openParentheses = '('.charCodeAt(0);
var closeParentheses = ')'.charCodeAt(0);
var singleQuote = '\''.charCodeAt(0);
var doubleQuote = '"'.charCodeAt(0);
var backslash = '\\'.charCodeAt(0);
var slash = '/'.charCodeAt(0);
var comma = ','.charCodeAt(0);
var colon = ':'.charCodeAt(0);
var star = '*'.charCodeAt(0);

module.exports = function (input) {
    var tokens = [];
    var value = input;

    var next, quote, prev, token, escape, escapePos, whitespacePos;
    var pos = 0;
    var code = value.charCodeAt(pos);
    var max = value.length;
    var stack = [{ nodes: tokens }];
    var balanced = 0;
    var parent;

    var name = '';
    var before = '';
    var after = '';

    while (pos < max) {
        // Whitespaces
        if (code <= 32) {
            next = pos;
            do {
                next += 1;
                code = value.charCodeAt(next);
            } while (code <= 32);
            token = value.slice(pos, next);

            prev = tokens[tokens.length - 1];
            if (code === closeParentheses && balanced) {
                after = token;
            } else if (prev && prev.type === 'div') {
                prev.after = token;
            } else if (code === comma || code === colon || code === slash && value.charCodeAt(next + 1) !== star) {
                before = token;
            } else {
                tokens.push({
                    type: 'space',
                    sourceIndex: pos,
                    value: token
                });
            }

            pos = next;

        // Quotes
        } else if (code === singleQuote || code === doubleQuote) {
            next = pos;
            quote = code === singleQuote ? '\'' : '"';
            token = {
                type: 'string',
                sourceIndex: pos,
                quote: quote
            };
            do {
                escape = false;
                next = value.indexOf(quote, next + 1);
                if (~next) {
                    escapePos = next;
                    while (value.charCodeAt(escapePos - 1) === backslash) {
                        escapePos -= 1;
                        escape = !escape;
                    }
                } else {
                    value += quote;
                    next = value.length - 1;
                    token.unclosed = true;
                }
            } while (escape);
            token.value = value.slice(pos + 1, next);

            tokens.push(token);
            pos = next + 1;
            code = value.charCodeAt(pos);

        // Comments
        } else if (code === slash && value.charCodeAt(pos + 1) === star) {
            token = {
                type: 'comment',
                sourceIndex: pos
            };

            next = value.indexOf('*/', pos);
            if (next === -1) {
                token.unclosed = true;
                next = value.length;
            }

            token.value = value.slice(pos + 2, next);
            tokens.push(token);

            pos = next + 2;
            code = value.charCodeAt(pos);

        // Dividers
        } else if (code === slash || code === comma || code === colon) {
            token = value[pos];

            tokens.push({
                type: 'div',
                sourceIndex: pos - before.length,
                value: token,
                before: before,
                after: ''
            });
            before = '';

            pos += 1;
            code = value.charCodeAt(pos);

        // Open parentheses
        } else if (openParentheses === code) {
            // Whitespaces after open parentheses
            next = pos;
            do {
                next += 1;
                code = value.charCodeAt(next);
            } while (code <= 32);
            token = {
                type: 'function',
                sourceIndex: pos - name.length,
                value: name,
                before: value.slice(pos + 1, next)
            };
            pos = next;

            if (name === 'url' && code !== singleQuote && code !== doubleQuote) {
                next -= 1;
                do {
                    escape = false;
                    next = value.indexOf(')', next + 1);
                    if (~next) {
                        escapePos = next;
                        while (value.charCodeAt(escapePos - 1) === backslash) {
                            escapePos -= 1;
                            escape = !escape;
                        }
                    } else {
                        value += ')';
                        next = value.length - 1;
                        token.unclosed = true;
                    }
                } while (escape);
                // Whitespaces before closed
                whitespacePos = next;
                do {
                    whitespacePos -= 1;
                    code = value.charCodeAt(whitespacePos);
                } while (code <= 32);
                if (pos !== whitespacePos + 1) {
                    token.nodes = [{
                        type: 'word',
                        sourceIndex: pos,
                        value: value.slice(pos, whitespacePos + 1)
                    }];
                } else {
                    token.nodes = [];
                }
                if (token.unclosed && whitespacePos + 1 !== next) {
                    token.after = '';
                    token.nodes.push({
                        type: 'space',
                        sourceIndex: whitespacePos + 1,
                        value: value.slice(whitespacePos + 1, next)
                    });
                } else {
                    token.after = value.slice(whitespacePos + 1, next);
                }
                pos = next + 1;
                code = value.charCodeAt(pos);
                tokens.push(token);
            } else {
                balanced += 1;
                token.after = '';
                tokens.push(token);
                stack.push(token);
                tokens = token.nodes = [];
                parent = token;
            }
            name = '';

        // Close parentheses
        } else if (closeParentheses === code && balanced) {
            pos += 1;
            code = value.charCodeAt(pos);

            parent.after = after;
            after = '';
            balanced -= 1;
            stack.pop();
            parent = stack[balanced];
            tokens = parent.nodes;

        // Words
        } else {
            next = pos;
            do {
                if (code === backslash) {
                    next += 1;
                }
                next += 1;
                code = value.charCodeAt(next);
            } while (next < max && !(
                code <= 32 ||
                code === singleQuote ||
                code === doubleQuote ||
                code === comma ||
                code === colon ||
                code === slash ||
                code === openParentheses ||
                code === closeParentheses && balanced
            ));
            token = value.slice(pos, next);

            if (openParentheses === code) {
                name = token;
            } else {
                tokens.push({
                    type: 'word',
                    sourceIndex: pos,
                    value: token
                });
            }

            pos = next;
        }
    }

    for (pos = stack.length - 1; pos; pos -= 1) {
        stack[pos].unclosed = true;
    }

    return stack[0].nodes;
};

},{}],132:[function(require,module,exports){
function stringifyNode(node, custom) {
    var type = node.type;
    var value = node.value;
    var buf;
    var customResult;

    if (custom && (customResult = custom(node)) !== undefined) {
        return customResult;
    } else if (type === 'word' || type === 'space') {
        return value;
    } else if (type === 'string') {
        buf = node.quote || '';
        return buf + value + (node.unclosed ? '' : buf);
    } else if (type === 'comment') {
        return '/*' + value + (node.unclosed ? '' : '*/');
    } else if (type === 'div') {
        return (node.before || '') + value + (node.after || '');
    } else if (Array.isArray(node.nodes)) {
        buf = stringify(node.nodes);
        if (type !== 'function') {
            return buf;
        }
        return value + '(' + (node.before || '') + buf + (node.after || '') + (node.unclosed ? '' : ')');
    }
    return value;
}

function stringify(nodes, custom) {
    var result, i;

    if (Array.isArray(nodes)) {
        result = '';
        for (i = nodes.length - 1; ~i; i -= 1) {
            result = stringifyNode(nodes[i], custom) + result;
        }
        return result;
    }
    return stringifyNode(nodes, custom);
}

module.exports = stringify;

},{}],133:[function(require,module,exports){
var minus = '-'.charCodeAt(0);
var plus  = '+'.charCodeAt(0);
var dot   = '.'.charCodeAt(0);

module.exports = function (value) {
    var pos = 0;
    var length = value.length;
    var dotted = false;
    var containsNumber = false;
    var code;
    var number = '';

    while (pos < length) {
        code = value.charCodeAt(pos);

        if (code >= 48 && code <= 57) {
            number += value[pos];
            containsNumber = true;
        } else if (code === dot) {
            if (dotted) {
                break;
            }
            dotted = true;
            number += value[pos];
        } else if (code === plus || code === minus) {
            if (pos !== 0) {
                break;
            }
            number += value[pos];
        } else {
            break;
        }

        pos += 1;
    }

    return containsNumber ? {
        number: number,
        unit: value.slice(pos)
    } : false;
};

},{}],134:[function(require,module,exports){
module.exports = function walk(nodes, cb, bubble) {
    var i, max, node, result;

    for (i = 0, max = nodes.length; i < max; i += 1) {
        node = nodes[i];
        if (!bubble) {
            result = cb(node, i, nodes);
        }

        if (result !== false && node.type === 'function' && Array.isArray(node.nodes)) {
            walk(node.nodes, cb, bubble);
        }

        if (bubble) {
            cb(node, i, nodes);
        }
    }
};

},{}],135:[function(require,module,exports){
'use strict';

exports.__esModule = true;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _container = require('./container');

var _container2 = _interopRequireDefault(_container);

var _warnOnce = require('./warn-once');

var _warnOnce2 = _interopRequireDefault(_warnOnce);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

/**
 * Represents an at-rule.
 *
 * If it’s followed in the CSS by a {} block, this node will have
 * a nodes property representing its children.
 *
 * @extends Container
 *
 * @example
 * const root = postcss.parse('@charset "UTF-8"; @media print {}');
 *
 * const charset = root.first;
 * charset.type  //=> 'atrule'
 * charset.nodes //=> undefined
 *
 * const media = root.last;
 * media.nodes   //=> []
 */
var AtRule = function (_Container) {
    _inherits(AtRule, _Container);

    function AtRule(defaults) {
        _classCallCheck(this, AtRule);

        var _this = _possibleConstructorReturn(this, _Container.call(this, defaults));

        _this.type = 'atrule';
        return _this;
    }

    AtRule.prototype.append = function append() {
        var _Container$prototype$;

        if (!this.nodes) this.nodes = [];

        for (var _len = arguments.length, children = Array(_len), _key = 0; _key < _len; _key++) {
            children[_key] = arguments[_key];
        }

        return (_Container$prototype$ = _Container.prototype.append).call.apply(_Container$prototype$, [this].concat(children));
    };

    AtRule.prototype.prepend = function prepend() {
        var _Container$prototype$2;

        if (!this.nodes) this.nodes = [];

        for (var _len2 = arguments.length, children = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
            children[_key2] = arguments[_key2];
        }

        return (_Container$prototype$2 = _Container.prototype.prepend).call.apply(_Container$prototype$2, [this].concat(children));
    };

    _createClass(AtRule, [{
        key: 'afterName',
        get: function get() {
            (0, _warnOnce2.default)('AtRule#afterName was deprecated. Use AtRule#raws.afterName');
            return this.raws.afterName;
        },
        set: function set(val) {
            (0, _warnOnce2.default)('AtRule#afterName was deprecated. Use AtRule#raws.afterName');
            this.raws.afterName = val;
        }
    }, {
        key: '_params',
        get: function get() {
            (0, _warnOnce2.default)('AtRule#_params was deprecated. Use AtRule#raws.params');
            return this.raws.params;
        },
        set: function set(val) {
            (0, _warnOnce2.default)('AtRule#_params was deprecated. Use AtRule#raws.params');
            this.raws.params = val;
        }

        /**
         * @memberof AtRule#
         * @member {string} name - the at-rule’s name immediately follows the `@`
         *
         * @example
         * const root  = postcss.parse('@media print {}');
         * media.name //=> 'media'
         * const media = root.first;
         */

        /**
         * @memberof AtRule#
         * @member {string} params - the at-rule’s parameters, the values
         *                           that follow the at-rule’s name but precede
         *                           any {} block
         *
         * @example
         * const root  = postcss.parse('@media print, screen {}');
         * const media = root.first;
         * media.params //=> 'print, screen'
         */

        /**
         * @memberof AtRule#
         * @member {object} raws - Information to generate byte-to-byte equal
         *                         node string as it was in the origin input.
         *
         * Every parser saves its own properties,
         * but the default CSS parser uses:
         *
         * * `before`: the space symbols before the node. It also stores `*`
         *   and `_` symbols before the declaration (IE hack).
         * * `after`: the space symbols after the last child of the node
         *   to the end of the node.
         * * `between`: the symbols between the property and value
         *   for declarations, selector and `{` for rules, or last parameter
         *   and `{` for at-rules.
         * * `semicolon`: contains true if the last child has
         *   an (optional) semicolon.
         * * `afterName`: the space between the at-rule name and its parameters.
         *
         * PostCSS cleans at-rule parameters from comments and extra spaces,
         * but it stores origin content in raws properties.
         * As such, if you don’t change a declaration’s value,
         * PostCSS will use the raw value with comments.
         *
         * @example
         * const root = postcss.parse('  @media\nprint {\n}')
         * root.first.first.raws //=> { before: '  ',
         *                       //     between: ' ',
         *                       //     afterName: '\n',
         *                       //     after: '\n' }
         */

    }]);

    return AtRule;
}(_container2.default);

exports.default = AtRule;
module.exports = exports['default'];


},{"./container":137,"./warn-once":158}],136:[function(require,module,exports){
'use strict';

exports.__esModule = true;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _warnOnce = require('./warn-once');

var _warnOnce2 = _interopRequireDefault(_warnOnce);

var _node = require('./node');

var _node2 = _interopRequireDefault(_node);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

/**
 * Represents a comment between declarations or statements (rule and at-rules).
 *
 * Comments inside selectors, at-rule parameters, or declaration values
 * will be stored in the `raws` properties explained above.
 *
 * @extends Node
 */
var Comment = function (_Node) {
    _inherits(Comment, _Node);

    function Comment(defaults) {
        _classCallCheck(this, Comment);

        var _this = _possibleConstructorReturn(this, _Node.call(this, defaults));

        _this.type = 'comment';
        return _this;
    }

    _createClass(Comment, [{
        key: 'left',
        get: function get() {
            (0, _warnOnce2.default)('Comment#left was deprecated. Use Comment#raws.left');
            return this.raws.left;
        },
        set: function set(val) {
            (0, _warnOnce2.default)('Comment#left was deprecated. Use Comment#raws.left');
            this.raws.left = val;
        }
    }, {
        key: 'right',
        get: function get() {
            (0, _warnOnce2.default)('Comment#right was deprecated. Use Comment#raws.right');
            return this.raws.right;
        },
        set: function set(val) {
            (0, _warnOnce2.default)('Comment#right was deprecated. Use Comment#raws.right');
            this.raws.right = val;
        }

        /**
         * @memberof Comment#
         * @member {string} text - the comment’s text
         */

        /**
         * @memberof Comment#
         * @member {object} raws - Information to generate byte-to-byte equal
         *                         node string as it was in the origin input.
         *
         * Every parser saves its own properties,
         * but the default CSS parser uses:
         *
         * * `before`: the space symbols before the node.
         * * `left`: the space symbols between `/*` and the comment’s text.
         * * `right`: the space symbols between the comment’s text.
         */

    }]);

    return Comment;
}(_node2.default);

exports.default = Comment;
module.exports = exports['default'];


},{"./node":144,"./warn-once":158}],137:[function(require,module,exports){
'use strict';

exports.__esModule = true;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _declaration = require('./declaration');

var _declaration2 = _interopRequireDefault(_declaration);

var _warnOnce = require('./warn-once');

var _warnOnce2 = _interopRequireDefault(_warnOnce);

var _comment = require('./comment');

var _comment2 = _interopRequireDefault(_comment);

var _node = require('./node');

var _node2 = _interopRequireDefault(_node);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

function cleanSource(nodes) {
    return nodes.map(function (i) {
        if (i.nodes) i.nodes = cleanSource(i.nodes);
        delete i.source;
        return i;
    });
}

/**
 * The {@link Root}, {@link AtRule}, and {@link Rule} container nodes
 * inherit some common methods to help work with their children.
 *
 * Note that all containers can store any content. If you write a rule inside
 * a rule, PostCSS will parse it.
 *
 * @extends Node
 * @abstract
 */

var Container = function (_Node) {
    _inherits(Container, _Node);

    function Container() {
        _classCallCheck(this, Container);

        return _possibleConstructorReturn(this, _Node.apply(this, arguments));
    }

    Container.prototype.push = function push(child) {
        child.parent = this;
        this.nodes.push(child);
        return this;
    };

    /**
     * Iterates through the container’s immediate children,
     * calling `callback` for each child.
     *
     * Returning `false` in the callback will break iteration.
     *
     * This method only iterates through the container’s immediate children.
     * If you need to recursively iterate through all the container’s descendant
     * nodes, use {@link Container#walk}.
     *
     * Unlike the for `{}`-cycle or `Array#forEach` this iterator is safe
     * if you are mutating the array of child nodes during iteration.
     * PostCSS will adjust the current index to match the mutations.
     *
     * @param {childIterator} callback - iterator receives each node and index
     *
     * @return {false|undefined} returns `false` if iteration was broke
     *
     * @example
     * const root = postcss.parse('a { color: black; z-index: 1 }');
     * const rule = root.first;
     *
     * for ( let decl of rule.nodes ) {
     *     decl.cloneBefore({ prop: '-webkit-' + decl.prop });
     *     // Cycle will be infinite, because cloneBefore moves the current node
     *     // to the next index
     * }
     *
     * rule.each(decl => {
     *     decl.cloneBefore({ prop: '-webkit-' + decl.prop });
     *     // Will be executed only for color and z-index
     * });
     */


    Container.prototype.each = function each(callback) {
        if (!this.lastEach) this.lastEach = 0;
        if (!this.indexes) this.indexes = {};

        this.lastEach += 1;
        var id = this.lastEach;
        this.indexes[id] = 0;

        if (!this.nodes) return undefined;

        var index = void 0,
            result = void 0;
        while (this.indexes[id] < this.nodes.length) {
            index = this.indexes[id];
            result = callback(this.nodes[index], index);
            if (result === false) break;

            this.indexes[id] += 1;
        }

        delete this.indexes[id];

        return result;
    };

    /**
     * Traverses the container’s descendant nodes, calling callback
     * for each node.
     *
     * Like container.each(), this method is safe to use
     * if you are mutating arrays during iteration.
     *
     * If you only need to iterate through the container’s immediate children,
     * use {@link Container#each}.
     *
     * @param {childIterator} callback - iterator receives each node and index
     *
     * @return {false|undefined} returns `false` if iteration was broke
     *
     * @example
     * root.walk(node => {
     *   // Traverses all descendant nodes.
     * });
     */


    Container.prototype.walk = function walk(callback) {
        return this.each(function (child, i) {
            var result = callback(child, i);
            if (result !== false && child.walk) {
                result = child.walk(callback);
            }
            return result;
        });
    };

    /**
     * Traverses the container’s descendant nodes, calling callback
     * for each declaration node.
     *
     * If you pass a filter, iteration will only happen over declarations
     * with matching properties.
     *
     * Like {@link Container#each}, this method is safe
     * to use if you are mutating arrays during iteration.
     *
     * @param {string|RegExp} [prop]   - string or regular expression
     *                                   to filter declarations by property name
     * @param {childIterator} callback - iterator receives each node and index
     *
     * @return {false|undefined} returns `false` if iteration was broke
     *
     * @example
     * root.walkDecls(decl => {
     *   checkPropertySupport(decl.prop);
     * });
     *
     * root.walkDecls('border-radius', decl => {
     *   decl.remove();
     * });
     *
     * root.walkDecls(/^background/, decl => {
     *   decl.value = takeFirstColorFromGradient(decl.value);
     * });
     */


    Container.prototype.walkDecls = function walkDecls(prop, callback) {
        if (!callback) {
            callback = prop;
            return this.walk(function (child, i) {
                if (child.type === 'decl') {
                    return callback(child, i);
                }
            });
        } else if (prop instanceof RegExp) {
            return this.walk(function (child, i) {
                if (child.type === 'decl' && prop.test(child.prop)) {
                    return callback(child, i);
                }
            });
        } else {
            return this.walk(function (child, i) {
                if (child.type === 'decl' && child.prop === prop) {
                    return callback(child, i);
                }
            });
        }
    };

    /**
     * Traverses the container’s descendant nodes, calling callback
     * for each rule node.
     *
     * If you pass a filter, iteration will only happen over rules
     * with matching selectors.
     *
     * Like {@link Container#each}, this method is safe
     * to use if you are mutating arrays during iteration.
     *
     * @param {string|RegExp} [selector] - string or regular expression
     *                                     to filter rules by selector
     * @param {childIterator} callback   - iterator receives each node and index
     *
     * @return {false|undefined} returns `false` if iteration was broke
     *
     * @example
     * const selectors = [];
     * root.walkRules(rule => {
     *   selectors.push(rule.selector);
     * });
     * console.log(`Your CSS uses ${selectors.length} selectors`);
     */


    Container.prototype.walkRules = function walkRules(selector, callback) {
        if (!callback) {
            callback = selector;

            return this.walk(function (child, i) {
                if (child.type === 'rule') {
                    return callback(child, i);
                }
            });
        } else if (selector instanceof RegExp) {
            return this.walk(function (child, i) {
                if (child.type === 'rule' && selector.test(child.selector)) {
                    return callback(child, i);
                }
            });
        } else {
            return this.walk(function (child, i) {
                if (child.type === 'rule' && child.selector === selector) {
                    return callback(child, i);
                }
            });
        }
    };

    /**
     * Traverses the container’s descendant nodes, calling callback
     * for each at-rule node.
     *
     * If you pass a filter, iteration will only happen over at-rules
     * that have matching names.
     *
     * Like {@link Container#each}, this method is safe
     * to use if you are mutating arrays during iteration.
     *
     * @param {string|RegExp} [name]   - string or regular expression
     *                                   to filter at-rules by name
     * @param {childIterator} callback - iterator receives each node and index
     *
     * @return {false|undefined} returns `false` if iteration was broke
     *
     * @example
     * root.walkAtRules(rule => {
     *   if ( isOld(rule.name) ) rule.remove();
     * });
     *
     * let first = false;
     * root.walkAtRules('charset', rule => {
     *   if ( !first ) {
     *     first = true;
     *   } else {
     *     rule.remove();
     *   }
     * });
     */


    Container.prototype.walkAtRules = function walkAtRules(name, callback) {
        if (!callback) {
            callback = name;
            return this.walk(function (child, i) {
                if (child.type === 'atrule') {
                    return callback(child, i);
                }
            });
        } else if (name instanceof RegExp) {
            return this.walk(function (child, i) {
                if (child.type === 'atrule' && name.test(child.name)) {
                    return callback(child, i);
                }
            });
        } else {
            return this.walk(function (child, i) {
                if (child.type === 'atrule' && child.name === name) {
                    return callback(child, i);
                }
            });
        }
    };

    /**
     * Traverses the container’s descendant nodes, calling callback
     * for each comment node.
     *
     * Like {@link Container#each}, this method is safe
     * to use if you are mutating arrays during iteration.
     *
     * @param {childIterator} callback - iterator receives each node and index
     *
     * @return {false|undefined} returns `false` if iteration was broke
     *
     * @example
     * root.walkComments(comment => {
     *   comment.remove();
     * });
     */


    Container.prototype.walkComments = function walkComments(callback) {
        return this.walk(function (child, i) {
            if (child.type === 'comment') {
                return callback(child, i);
            }
        });
    };

    /**
     * Inserts new nodes to the start of the container.
     *
     * @param {...(Node|object|string|Node[])} children - new nodes
     *
     * @return {Node} this node for methods chain
     *
     * @example
     * const decl1 = postcss.decl({ prop: 'color', value: 'black' });
     * const decl2 = postcss.decl({ prop: 'background-color', value: 'white' });
     * rule.append(decl1, decl2);
     *
     * root.append({ name: 'charset', params: '"UTF-8"' });  // at-rule
     * root.append({ selector: 'a' });                       // rule
     * rule.append({ prop: 'color', value: 'black' });       // declaration
     * rule.append({ text: 'Comment' })                      // comment
     *
     * root.append('a {}');
     * root.first.append('color: black; z-index: 1');
     */


    Container.prototype.append = function append() {
        for (var _len = arguments.length, children = Array(_len), _key = 0; _key < _len; _key++) {
            children[_key] = arguments[_key];
        }

        for (var _iterator = children, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
            var _ref;

            if (_isArray) {
                if (_i >= _iterator.length) break;
                _ref = _iterator[_i++];
            } else {
                _i = _iterator.next();
                if (_i.done) break;
                _ref = _i.value;
            }

            var child = _ref;

            var nodes = this.normalize(child, this.last);
            for (var _iterator2 = nodes, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
                var _ref2;

                if (_isArray2) {
                    if (_i2 >= _iterator2.length) break;
                    _ref2 = _iterator2[_i2++];
                } else {
                    _i2 = _iterator2.next();
                    if (_i2.done) break;
                    _ref2 = _i2.value;
                }

                var node = _ref2;
                this.nodes.push(node);
            }
        }
        return this;
    };

    /**
     * Inserts new nodes to the end of the container.
     *
     * @param {...(Node|object|string|Node[])} children - new nodes
     *
     * @return {Node} this node for methods chain
     *
     * @example
     * const decl1 = postcss.decl({ prop: 'color', value: 'black' });
     * const decl2 = postcss.decl({ prop: 'background-color', value: 'white' });
     * rule.prepend(decl1, decl2);
     *
     * root.append({ name: 'charset', params: '"UTF-8"' });  // at-rule
     * root.append({ selector: 'a' });                       // rule
     * rule.append({ prop: 'color', value: 'black' });       // declaration
     * rule.append({ text: 'Comment' })                      // comment
     *
     * root.append('a {}');
     * root.first.append('color: black; z-index: 1');
     */


    Container.prototype.prepend = function prepend() {
        for (var _len2 = arguments.length, children = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
            children[_key2] = arguments[_key2];
        }

        children = children.reverse();
        for (var _iterator3 = children, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
            var _ref3;

            if (_isArray3) {
                if (_i3 >= _iterator3.length) break;
                _ref3 = _iterator3[_i3++];
            } else {
                _i3 = _iterator3.next();
                if (_i3.done) break;
                _ref3 = _i3.value;
            }

            var child = _ref3;

            var nodes = this.normalize(child, this.first, 'prepend').reverse();
            for (var _iterator4 = nodes, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
                var _ref4;

                if (_isArray4) {
                    if (_i4 >= _iterator4.length) break;
                    _ref4 = _iterator4[_i4++];
                } else {
                    _i4 = _iterator4.next();
                    if (_i4.done) break;
                    _ref4 = _i4.value;
                }

                var node = _ref4;
                this.nodes.unshift(node);
            }for (var id in this.indexes) {
                this.indexes[id] = this.indexes[id] + nodes.length;
            }
        }
        return this;
    };

    Container.prototype.cleanRaws = function cleanRaws(keepBetween) {
        _Node.prototype.cleanRaws.call(this, keepBetween);
        if (this.nodes) {
            for (var _iterator5 = this.nodes, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
                var _ref5;

                if (_isArray5) {
                    if (_i5 >= _iterator5.length) break;
                    _ref5 = _iterator5[_i5++];
                } else {
                    _i5 = _iterator5.next();
                    if (_i5.done) break;
                    _ref5 = _i5.value;
                }

                var node = _ref5;
                node.cleanRaws(keepBetween);
            }
        }
    };

    /**
     * Insert new node before old node within the container.
     *
     * @param {Node|number} exist             - child or child’s index.
     * @param {Node|object|string|Node[]} add - new node
     *
     * @return {Node} this node for methods chain
     *
     * @example
     * rule.insertBefore(decl, decl.clone({ prop: '-webkit-' + decl.prop }));
     */


    Container.prototype.insertBefore = function insertBefore(exist, add) {
        exist = this.index(exist);

        var type = exist === 0 ? 'prepend' : false;
        var nodes = this.normalize(add, this.nodes[exist], type).reverse();
        for (var _iterator6 = nodes, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
            var _ref6;

            if (_isArray6) {
                if (_i6 >= _iterator6.length) break;
                _ref6 = _iterator6[_i6++];
            } else {
                _i6 = _iterator6.next();
                if (_i6.done) break;
                _ref6 = _i6.value;
            }

            var node = _ref6;
            this.nodes.splice(exist, 0, node);
        }var index = void 0;
        for (var id in this.indexes) {
            index = this.indexes[id];
            if (exist <= index) {
                this.indexes[id] = index + nodes.length;
            }
        }

        return this;
    };

    /**
     * Insert new node after old node within the container.
     *
     * @param {Node|number} exist             - child or child’s index
     * @param {Node|object|string|Node[]} add - new node
     *
     * @return {Node} this node for methods chain
     */


    Container.prototype.insertAfter = function insertAfter(exist, add) {
        exist = this.index(exist);

        var nodes = this.normalize(add, this.nodes[exist]).reverse();
        for (var _iterator7 = nodes, _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : _iterator7[Symbol.iterator]();;) {
            var _ref7;

            if (_isArray7) {
                if (_i7 >= _iterator7.length) break;
                _ref7 = _iterator7[_i7++];
            } else {
                _i7 = _iterator7.next();
                if (_i7.done) break;
                _ref7 = _i7.value;
            }

            var node = _ref7;
            this.nodes.splice(exist + 1, 0, node);
        }var index = void 0;
        for (var id in this.indexes) {
            index = this.indexes[id];
            if (exist < index) {
                this.indexes[id] = index + nodes.length;
            }
        }

        return this;
    };

    Container.prototype.remove = function remove(child) {
        if (typeof child !== 'undefined') {
            (0, _warnOnce2.default)('Container#remove is deprecated. ' + 'Use Container#removeChild');
            this.removeChild(child);
        } else {
            _Node.prototype.remove.call(this);
        }
        return this;
    };

    /**
     * Removes node from the container and cleans the parent properties
     * from the node and its children.
     *
     * @param {Node|number} child - child or child’s index
     *
     * @return {Node} this node for methods chain
     *
     * @example
     * rule.nodes.length  //=> 5
     * rule.removeChild(decl);
     * rule.nodes.length  //=> 4
     * decl.parent        //=> undefined
     */


    Container.prototype.removeChild = function removeChild(child) {
        child = this.index(child);
        this.nodes[child].parent = undefined;
        this.nodes.splice(child, 1);

        var index = void 0;
        for (var id in this.indexes) {
            index = this.indexes[id];
            if (index >= child) {
                this.indexes[id] = index - 1;
            }
        }

        return this;
    };

    /**
     * Removes all children from the container
     * and cleans their parent properties.
     *
     * @return {Node} this node for methods chain
     *
     * @example
     * rule.removeAll();
     * rule.nodes.length //=> 0
     */


    Container.prototype.removeAll = function removeAll() {
        for (var _iterator8 = this.nodes, _isArray8 = Array.isArray(_iterator8), _i8 = 0, _iterator8 = _isArray8 ? _iterator8 : _iterator8[Symbol.iterator]();;) {
            var _ref8;

            if (_isArray8) {
                if (_i8 >= _iterator8.length) break;
                _ref8 = _iterator8[_i8++];
            } else {
                _i8 = _iterator8.next();
                if (_i8.done) break;
                _ref8 = _i8.value;
            }

            var node = _ref8;
            node.parent = undefined;
        }this.nodes = [];
        return this;
    };

    /**
     * Passes all declaration values within the container that match pattern
     * through callback, replacing those values with the returned result
     * of callback.
     *
     * This method is useful if you are using a custom unit or function
     * and need to iterate through all values.
     *
     * @param {string|RegExp} pattern      - replace pattern
     * @param {object} opts                - options to speed up the search
     * @param {string|string[]} opts.props - an array of property names
     * @param {string} opts.fast           - string that’s used
     *                                       to narrow down values and speed up
                                             the regexp search
     * @param {function|string} callback   - string to replace pattern
     *                                       or callback that returns a new
     *                                       value.
     *                                       The callback will receive
     *                                       the same arguments as those
     *                                       passed to a function parameter
     *                                       of `String#replace`.
     *
     * @return {Node} this node for methods chain
     *
     * @example
     * root.replaceValues(/\d+rem/, { fast: 'rem' }, string => {
     *   return 15 * parseInt(string) + 'px';
     * });
     */


    Container.prototype.replaceValues = function replaceValues(pattern, opts, callback) {
        if (!callback) {
            callback = opts;
            opts = {};
        }

        this.walkDecls(function (decl) {
            if (opts.props && opts.props.indexOf(decl.prop) === -1) return;
            if (opts.fast && decl.value.indexOf(opts.fast) === -1) return;

            decl.value = decl.value.replace(pattern, callback);
        });

        return this;
    };

    /**
     * Returns `true` if callback returns `true`
     * for all of the container’s children.
     *
     * @param {childCondition} condition - iterator returns true or false.
     *
     * @return {boolean} is every child pass condition
     *
     * @example
     * const noPrefixes = rule.every(i => i.prop[0] !== '-');
     */


    Container.prototype.every = function every(condition) {
        return this.nodes.every(condition);
    };

    /**
     * Returns `true` if callback returns `true` for (at least) one
     * of the container’s children.
     *
     * @param {childCondition} condition - iterator returns true or false.
     *
     * @return {boolean} is some child pass condition
     *
     * @example
     * const hasPrefix = rule.some(i => i.prop[0] === '-');
     */


    Container.prototype.some = function some(condition) {
        return this.nodes.some(condition);
    };

    /**
     * Returns a `child`’s index within the {@link Container#nodes} array.
     *
     * @param {Node} child - child of the current container.
     *
     * @return {number} child index
     *
     * @example
     * rule.index( rule.nodes[2] ) //=> 2
     */


    Container.prototype.index = function index(child) {
        if (typeof child === 'number') {
            return child;
        } else {
            return this.nodes.indexOf(child);
        }
    };

    /**
     * The container’s first child.
     *
     * @type {Node}
     *
     * @example
     * rule.first == rules.nodes[0];
     */


    Container.prototype.normalize = function normalize(nodes, sample) {
        var _this2 = this;

        if (typeof nodes === 'string') {
            var parse = require('./parse');
            nodes = cleanSource(parse(nodes).nodes);
        } else if (!Array.isArray(nodes)) {
            if (nodes.type === 'root') {
                nodes = nodes.nodes;
            } else if (nodes.type) {
                nodes = [nodes];
            } else if (nodes.prop) {
                if (typeof nodes.value === 'undefined') {
                    throw new Error('Value field is missed in node creation');
                } else if (typeof nodes.value !== 'string') {
                    nodes.value = String(nodes.value);
                }
                nodes = [new _declaration2.default(nodes)];
            } else if (nodes.selector) {
                var Rule = require('./rule');
                nodes = [new Rule(nodes)];
            } else if (nodes.name) {
                var AtRule = require('./at-rule');
                nodes = [new AtRule(nodes)];
            } else if (nodes.text) {
                nodes = [new _comment2.default(nodes)];
            } else {
                throw new Error('Unknown node type in node creation');
            }
        }

        var processed = nodes.map(function (i) {
            if (typeof i.raws === 'undefined') i = _this2.rebuild(i);

            if (i.parent) i = i.clone();
            if (typeof i.raws.before === 'undefined') {
                if (sample && typeof sample.raws.before !== 'undefined') {
                    i.raws.before = sample.raws.before.replace(/[^\s]/g, '');
                }
            }
            i.parent = _this2;
            return i;
        });

        return processed;
    };

    Container.prototype.rebuild = function rebuild(node, parent) {
        var _this3 = this;

        var fix = void 0;
        if (node.type === 'root') {
            var Root = require('./root');
            fix = new Root();
        } else if (node.type === 'atrule') {
            var AtRule = require('./at-rule');
            fix = new AtRule();
        } else if (node.type === 'rule') {
            var Rule = require('./rule');
            fix = new Rule();
        } else if (node.type === 'decl') {
            fix = new _declaration2.default();
        } else if (node.type === 'comment') {
            fix = new _comment2.default();
        }

        for (var i in node) {
            if (i === 'nodes') {
                fix.nodes = node.nodes.map(function (j) {
                    return _this3.rebuild(j, fix);
                });
            } else if (i === 'parent' && parent) {
                fix.parent = parent;
            } else if (node.hasOwnProperty(i)) {
                fix[i] = node[i];
            }
        }

        return fix;
    };

    Container.prototype.eachInside = function eachInside(callback) {
        (0, _warnOnce2.default)('Container#eachInside is deprecated. ' + 'Use Container#walk instead.');
        return this.walk(callback);
    };

    Container.prototype.eachDecl = function eachDecl(prop, callback) {
        (0, _warnOnce2.default)('Container#eachDecl is deprecated. ' + 'Use Container#walkDecls instead.');
        return this.walkDecls(prop, callback);
    };

    Container.prototype.eachRule = function eachRule(selector, callback) {
        (0, _warnOnce2.default)('Container#eachRule is deprecated. ' + 'Use Container#walkRules instead.');
        return this.walkRules(selector, callback);
    };

    Container.prototype.eachAtRule = function eachAtRule(name, callback) {
        (0, _warnOnce2.default)('Container#eachAtRule is deprecated. ' + 'Use Container#walkAtRules instead.');
        return this.walkAtRules(name, callback);
    };

    Container.prototype.eachComment = function eachComment(callback) {
        (0, _warnOnce2.default)('Container#eachComment is deprecated. ' + 'Use Container#walkComments instead.');
        return this.walkComments(callback);
    };

    _createClass(Container, [{
        key: 'first',
        get: function get() {
            if (!this.nodes) return undefined;
            return this.nodes[0];
        }

        /**
         * The container’s last child.
         *
         * @type {Node}
         *
         * @example
         * rule.last == rule.nodes[rule.nodes.length - 1];
         */

    }, {
        key: 'last',
        get: function get() {
            if (!this.nodes) return undefined;
            return this.nodes[this.nodes.length - 1];
        }
    }, {
        key: 'semicolon',
        get: function get() {
            (0, _warnOnce2.default)('Node#semicolon is deprecated. Use Node#raws.semicolon');
            return this.raws.semicolon;
        },
        set: function set(val) {
            (0, _warnOnce2.default)('Node#semicolon is deprecated. Use Node#raws.semicolon');
            this.raws.semicolon = val;
        }
    }, {
        key: 'after',
        get: function get() {
            (0, _warnOnce2.default)('Node#after is deprecated. Use Node#raws.after');
            return this.raws.after;
        },
        set: function set(val) {
            (0, _warnOnce2.default)('Node#after is deprecated. Use Node#raws.after');
            this.raws.after = val;
        }

        /**
         * @memberof Container#
         * @member {Node[]} nodes - an array containing the container’s children
         *
         * @example
         * const root = postcss.parse('a { color: black }');
         * root.nodes.length           //=> 1
         * root.nodes[0].selector      //=> 'a'
         * root.nodes[0].nodes[0].prop //=> 'color'
         */

    }]);

    return Container;
}(_node2.default);

exports.default = Container;

/**
 * @callback childCondition
 * @param {Node} node    - container child
 * @param {number} index - child index
 * @param {Node[]} nodes - all container children
 * @return {boolean}
 */

/**
 * @callback childIterator
 * @param {Node} node    - container child
 * @param {number} index - child index
 * @return {false|undefined} returning `false` will break iteration
 */

module.exports = exports['default'];


},{"./at-rule":135,"./comment":136,"./declaration":139,"./node":144,"./parse":145,"./root":151,"./rule":152,"./warn-once":158}],138:[function(require,module,exports){
'use strict';

exports.__esModule = true;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _supportsColor = require('supports-color');

var _supportsColor2 = _interopRequireDefault(_supportsColor);

var _chalk = require('chalk');

var _chalk2 = _interopRequireDefault(_chalk);

var _terminalHighlight = require('./terminal-highlight');

var _terminalHighlight2 = _interopRequireDefault(_terminalHighlight);

var _warnOnce = require('./warn-once');

var _warnOnce2 = _interopRequireDefault(_warnOnce);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

/**
 * The CSS parser throws this error for broken CSS.
 *
 * Custom parsers can throw this error for broken custom syntax using
 * the {@link Node#error} method.
 *
 * PostCSS will use the input source map to detect the original error location.
 * If you wrote a Sass file, compiled it to CSS and then parsed it with PostCSS,
 * PostCSS will show the original position in the Sass file.
 *
 * If you need the position in the PostCSS input
 * (e.g., to debug the previous compiler), use `error.input.file`.
 *
 * @example
 * // Catching and checking syntax error
 * try {
 *   postcss.parse('a{')
 * } catch (error) {
 *   if ( error.name === 'CssSyntaxError' ) {
 *     error //=> CssSyntaxError
 *   }
 * }
 *
 * @example
 * // Raising error from plugin
 * throw node.error('Unknown variable', { plugin: 'postcss-vars' });
 */
var CssSyntaxError = function () {

    /**
     * @param {string} message  - error message
     * @param {number} [line]   - source line of the error
     * @param {number} [column] - source column of the error
     * @param {string} [source] - source code of the broken file
     * @param {string} [file]   - absolute path to the broken file
     * @param {string} [plugin] - PostCSS plugin name, if error came from plugin
     */
    function CssSyntaxError(message, line, column, source, file, plugin) {
        _classCallCheck(this, CssSyntaxError);

        /**
         * @member {string} - Always equal to `'CssSyntaxError'`. You should
         *                    always check error type
         *                    by `error.name === 'CssSyntaxError'` instead of
         *                    `error instanceof CssSyntaxError`, because
         *                    npm could have several PostCSS versions.
         *
         * @example
         * if ( error.name === 'CssSyntaxError' ) {
         *   error //=> CssSyntaxError
         * }
         */
        this.name = 'CssSyntaxError';
        /**
         * @member {string} - Error message.
         *
         * @example
         * error.message //=> 'Unclosed block'
         */
        this.reason = message;

        if (file) {
            /**
             * @member {string} - Absolute path to the broken file.
             *
             * @example
             * error.file       //=> 'a.sass'
             * error.input.file //=> 'a.css'
             */
            this.file = file;
        }
        if (source) {
            /**
             * @member {string} - Source code of the broken file.
             *
             * @example
             * error.source       //=> 'a { b {} }'
             * error.input.column //=> 'a b { }'
             */
            this.source = source;
        }
        if (plugin) {
            /**
             * @member {string} - Plugin name, if error came from plugin.
             *
             * @example
             * error.plugin //=> 'postcss-vars'
             */
            this.plugin = plugin;
        }
        if (typeof line !== 'undefined' && typeof column !== 'undefined') {
            /**
             * @member {number} - Source line of the error.
             *
             * @example
             * error.line       //=> 2
             * error.input.line //=> 4
             */
            this.line = line;
            /**
             * @member {number} - Source column of the error.
             *
             * @example
             * error.column       //=> 1
             * error.input.column //=> 4
             */
            this.column = column;
        }

        this.setMessage();

        if (Error.captureStackTrace) {
            Error.captureStackTrace(this, CssSyntaxError);
        }
    }

    CssSyntaxError.prototype.setMessage = function setMessage() {
        /**
         * @member {string} - Full error text in the GNU error format
         *                    with plugin, file, line and column.
         *
         * @example
         * error.message //=> 'a.css:1:1: Unclosed block'
         */
        this.message = this.plugin ? this.plugin + ': ' : '';
        this.message += this.file ? this.file : '<css input>';
        if (typeof this.line !== 'undefined') {
            this.message += ':' + this.line + ':' + this.column;
        }
        this.message += ': ' + this.reason;
    };

    /**
     * Returns a few lines of CSS source that caused the error.
     *
     * If the CSS has an input source map without `sourceContent`,
     * this method will return an empty string.
     *
     * @param {boolean} [color] whether arrow will be colored red by terminal
     *                          color codes. By default, PostCSS will detect
     *                          color support by `process.stdout.isTTY`
     *                          and `process.env.NODE_DISABLE_COLORS`.
     *
     * @example
     * error.showSourceCode() //=> "  4 | }
     *                        //      5 | a {
     *                        //    > 6 |   bad
     *                        //        |   ^
     *                        //      7 | }
     *                        //      8 | b {"
     *
     * @return {string} few lines of CSS source that caused the error
     */


    CssSyntaxError.prototype.showSourceCode = function showSourceCode(color) {
        var _this = this;

        if (!this.source) return '';

        var css = this.source;
        if (typeof color === 'undefined') color = _supportsColor2.default;
        if (color) css = (0, _terminalHighlight2.default)(css);

        var lines = css.split(/\r?\n/);
        var start = Math.max(this.line - 3, 0);
        var end = Math.min(this.line + 2, lines.length);

        var maxWidth = String(end).length;
        var colors = new _chalk2.default.constructor({ enabled: true });

        function mark(text) {
            if (color) {
                return colors.red.bold(text);
            } else {
                return text;
            }
        }
        function aside(text) {
            if (color) {
                return colors.gray(text);
            } else {
                return text;
            }
        }

        return lines.slice(start, end).map(function (line, index) {
            var number = start + 1 + index;
            var gutter = ' ' + (' ' + number).slice(-maxWidth) + ' | ';
            if (number === _this.line) {
                var spacing = aside(gutter.replace(/\d/g, ' ')) + line.slice(0, _this.column - 1).replace(/[^\t]/g, ' ');
                return mark('>') + aside(gutter) + line + '\n ' + spacing + mark('^');
            } else {
                return ' ' + aside(gutter) + line;
            }
        }).join('\n');
    };

    /**
     * Returns error position, message and source code of the broken part.
     *
     * @example
     * error.toString() //=> "CssSyntaxError: app.css:1:1: Unclosed block
     *                  //    > 1 | a {
     *                  //        | ^"
     *
     * @return {string} error position, message and source code
     */


    CssSyntaxError.prototype.toString = function toString() {
        var code = this.showSourceCode();
        if (code) {
            code = '\n\n' + code + '\n';
        }
        return this.name + ': ' + this.message + code;
    };

    _createClass(CssSyntaxError, [{
        key: 'generated',
        get: function get() {
            (0, _warnOnce2.default)('CssSyntaxError#generated is depreacted. Use input instead.');
            return this.input;
        }

        /**
         * @memberof CssSyntaxError#
         * @member {Input} input - Input object with PostCSS internal information
         *                         about input file. If input has source map
         *                         from previous tool, PostCSS will use origin
         *                         (for example, Sass) source. You can use this
         *                         object to get PostCSS input source.
         *
         * @example
         * error.input.file //=> 'a.css'
         * error.file       //=> 'a.sass'
         */

    }]);

    return CssSyntaxError;
}();

exports.default = CssSyntaxError;
module.exports = exports['default'];


},{"./terminal-highlight":155,"./warn-once":158,"chalk":120,"supports-color":173}],139:[function(require,module,exports){
'use strict';

exports.__esModule = true;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _warnOnce = require('./warn-once');

var _warnOnce2 = _interopRequireDefault(_warnOnce);

var _node = require('./node');

var _node2 = _interopRequireDefault(_node);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

/**
 * Represents a CSS declaration.
 *
 * @extends Node
 *
 * @example
 * const root = postcss.parse('a { color: black }');
 * const decl = root.first.first;
 * decl.type       //=> 'decl'
 * decl.toString() //=> ' color: black'
 */
var Declaration = function (_Node) {
    _inherits(Declaration, _Node);

    function Declaration(defaults) {
        _classCallCheck(this, Declaration);

        var _this = _possibleConstructorReturn(this, _Node.call(this, defaults));

        _this.type = 'decl';
        return _this;
    }

    _createClass(Declaration, [{
        key: '_value',
        get: function get() {
            (0, _warnOnce2.default)('Node#_value was deprecated. Use Node#raws.value');
            return this.raws.value;
        },
        set: function set(val) {
            (0, _warnOnce2.default)('Node#_value was deprecated. Use Node#raws.value');
            this.raws.value = val;
        }
    }, {
        key: '_important',
        get: function get() {
            (0, _warnOnce2.default)('Node#_important was deprecated. Use Node#raws.important');
            return this.raws.important;
        },
        set: function set(val) {
            (0, _warnOnce2.default)('Node#_important was deprecated. Use Node#raws.important');
            this.raws.important = val;
        }

        /**
         * @memberof Declaration#
         * @member {string} prop - the declaration’s property name
         *
         * @example
         * const root = postcss.parse('a { color: black }');
         * const decl = root.first.first;
         * decl.prop //=> 'color'
         */

        /**
         * @memberof Declaration#
         * @member {string} value - the declaration’s value
         *
         * @example
         * const root = postcss.parse('a { color: black }');
         * const decl = root.first.first;
         * decl.value //=> 'black'
         */

        /**
         * @memberof Declaration#
         * @member {boolean} important - `true` if the declaration
         *                               has an !important annotation.
         *
         * @example
         * const root = postcss.parse('a { color: black !important; color: red }');
         * root.first.first.important //=> true
         * root.first.last.important  //=> undefined
         */

        /**
         * @memberof Declaration#
         * @member {object} raws - Information to generate byte-to-byte equal
         *                         node string as it was in the origin input.
         *
         * Every parser saves its own properties,
         * but the default CSS parser uses:
         *
         * * `before`: the space symbols before the node. It also stores `*`
         *   and `_` symbols before the declaration (IE hack).
         * * `between`: the symbols between the property and value
         *   for declarations, selector and `{` for rules, or last parameter
         *   and `{` for at-rules.
         * * `important`: the content of the important statement,
         *   if it is not just `!important`.
         *
         * PostCSS cleans declaration from comments and extra spaces,
         * but it stores origin content in raws properties.
         * As such, if you don’t change a declaration’s value,
         * PostCSS will use the raw value with comments.
         *
         * @example
         * const root = postcss.parse('a {\n  color:black\n}')
         * root.first.first.raws //=> { before: '\n  ', between: ':' }
         */

    }]);

    return Declaration;
}(_node2.default);

exports.default = Declaration;
module.exports = exports['default'];


},{"./node":144,"./warn-once":158}],140:[function(require,module,exports){
'use strict';

exports.__esModule = true;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _cssSyntaxError = require('./css-syntax-error');

var _cssSyntaxError2 = _interopRequireDefault(_cssSyntaxError);

var _previousMap = require('./previous-map');

var _previousMap2 = _interopRequireDefault(_previousMap);

var _path = require('path');

var _path2 = _interopRequireDefault(_path);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var sequence = 0;

/**
 * Represents the source CSS.
 *
 * @example
 * const root  = postcss.parse(css, { from: file });
 * const input = root.source.input;
 */

var Input = function () {

    /**
     * @param {string} css    - input CSS source
     * @param {object} [opts] - {@link Processor#process} options
     */
    function Input(css) {
        var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

        _classCallCheck(this, Input);

        /**
         * @member {string} - input CSS source
         *
         * @example
         * const input = postcss.parse('a{}', { from: file }).input;
         * input.css //=> "a{}";
         */
        this.css = css.toString();

        if (this.css[0] === '\uFEFF' || this.css[0] === '\uFFFE') {
            this.css = this.css.slice(1);
        }

        if (opts.from) {
            if (/^\w+:\/\//.test(opts.from)) {
                /**
                 * @member {string} - The absolute path to the CSS source file
                 *                    defined with the `from` option.
                 *
                 * @example
                 * const root = postcss.parse(css, { from: 'a.css' });
                 * root.source.input.file //=> '/home/ai/a.css'
                 */
                this.file = opts.from;
            } else {
                this.file = _path2.default.resolve(opts.from);
            }
        }

        var map = new _previousMap2.default(this.css, opts);
        if (map.text) {
            /**
             * @member {PreviousMap} - The input source map passed from
             *                         a compilation step before PostCSS
             *                         (for example, from Sass compiler).
             *
             * @example
             * root.source.input.map.consumer().sources //=> ['a.sass']
             */
            this.map = map;
            var file = map.consumer().file;
            if (!this.file && file) this.file = this.mapResolve(file);
        }

        if (!this.file) {
            sequence += 1;
            /**
             * @member {string} - The unique ID of the CSS source. It will be
             *                    created if `from` option is not provided
             *                    (because PostCSS does not know the file path).
             *
             * @example
             * const root = postcss.parse(css);
             * root.source.input.file //=> undefined
             * root.source.input.id   //=> "<input css 1>"
             */
            this.id = '<input css ' + sequence + '>';
        }
        if (this.map) this.map.file = this.from;
    }

    Input.prototype.error = function error(message, line, column) {
        var opts = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};

        var result = void 0;
        var origin = this.origin(line, column);
        if (origin) {
            result = new _cssSyntaxError2.default(message, origin.line, origin.column, origin.source, origin.file, opts.plugin);
        } else {
            result = new _cssSyntaxError2.default(message, line, column, this.css, this.file, opts.plugin);
        }

        result.input = { line: line, column: column, source: this.css };
        if (this.file) result.input.file = this.file;

        return result;
    };

    /**
     * Reads the input source map and returns a symbol position
     * in the input source (e.g., in a Sass file that was compiled
     * to CSS before being passed to PostCSS).
     *
     * @param {number} line   - line in input CSS
     * @param {number} column - column in input CSS
     *
     * @return {filePosition} position in input source
     *
     * @example
     * root.source.input.origin(1, 1) //=> { file: 'a.css', line: 3, column: 1 }
     */


    Input.prototype.origin = function origin(line, column) {
        if (!this.map) return false;
        var consumer = this.map.consumer();

        var from = consumer.originalPositionFor({ line: line, column: column });
        if (!from.source) return false;

        var result = {
            file: this.mapResolve(from.source),
            line: from.line,
            column: from.column
        };

        var source = consumer.sourceContentFor(from.source);
        if (source) result.source = source;

        return result;
    };

    Input.prototype.mapResolve = function mapResolve(file) {
        if (/^\w+:\/\//.test(file)) {
            return file;
        } else {
            return _path2.default.resolve(this.map.consumer().sourceRoot || '.', file);
        }
    };

    /**
     * The CSS source identifier. Contains {@link Input#file} if the user
     * set the `from` option, or {@link Input#id} if they did not.
     * @type {string}
     *
     * @example
     * const root = postcss.parse(css, { from: 'a.css' });
     * root.source.input.from //=> "/home/ai/a.css"
     *
     * const root = postcss.parse(css);
     * root.source.input.from //=> "<input css 1>"
     */


    _createClass(Input, [{
        key: 'from',
        get: function get() {
            return this.file || this.id;
        }
    }]);

    return Input;
}();

exports.default = Input;

/**
 * @typedef  {object} filePosition
 * @property {string} file   - path to file
 * @property {number} line   - source line in file
 * @property {number} column - source column in file
 */

module.exports = exports['default'];


},{"./css-syntax-error":138,"./previous-map":148,"path":129}],141:[function(require,module,exports){
'use strict';

exports.__esModule = true;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

var _mapGenerator = require('./map-generator');

var _mapGenerator2 = _interopRequireDefault(_mapGenerator);

var _stringify2 = require('./stringify');

var _stringify3 = _interopRequireDefault(_stringify2);

var _warnOnce = require('./warn-once');

var _warnOnce2 = _interopRequireDefault(_warnOnce);

var _result = require('./result');

var _result2 = _interopRequireDefault(_result);

var _parse = require('./parse');

var _parse2 = _interopRequireDefault(_parse);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function isPromise(obj) {
    return (typeof obj === 'undefined' ? 'undefined' : _typeof(obj)) === 'object' && typeof obj.then === 'function';
}

/**
 * A Promise proxy for the result of PostCSS transformations.
 *
 * A `LazyResult` instance is returned by {@link Processor#process}.
 *
 * @example
 * const lazy = postcss([cssnext]).process(css);
 */

var LazyResult = function () {
    function LazyResult(processor, css, opts) {
        _classCallCheck(this, LazyResult);

        this.stringified = false;
        this.processed = false;

        var root = void 0;
        if ((typeof css === 'undefined' ? 'undefined' : _typeof(css)) === 'object' && css.type === 'root') {
            root = css;
        } else if (css instanceof LazyResult || css instanceof _result2.default) {
            root = css.root;
            if (css.map) {
                if (typeof opts.map === 'undefined') opts.map = {};
                if (!opts.map.inline) opts.map.inline = false;
                opts.map.prev = css.map;
            }
        } else {
            var parser = _parse2.default;
            if (opts.syntax) parser = opts.syntax.parse;
            if (opts.parser) parser = opts.parser;
            if (parser.parse) parser = parser.parse;

            try {
                root = parser(css, opts);
            } catch (error) {
                this.error = error;
            }
        }

        this.result = new _result2.default(processor, root, opts);
    }

    /**
     * Returns a {@link Processor} instance, which will be used
     * for CSS transformations.
     * @type {Processor}
     */


    /**
     * Processes input CSS through synchronous plugins
     * and calls {@link Result#warnings()}.
     *
     * @return {Warning[]} warnings from plugins
     */
    LazyResult.prototype.warnings = function warnings() {
        return this.sync().warnings();
    };

    /**
     * Alias for the {@link LazyResult#css} property.
     *
     * @example
     * lazy + '' === lazy.css;
     *
     * @return {string} output CSS
     */


    LazyResult.prototype.toString = function toString() {
        return this.css;
    };

    /**
     * Processes input CSS through synchronous and asynchronous plugins
     * and calls `onFulfilled` with a Result instance. If a plugin throws
     * an error, the `onRejected` callback will be executed.
     *
     * It implements standard Promise API.
     *
     * @param {onFulfilled} onFulfilled - callback will be executed
     *                                    when all plugins will finish work
     * @param {onRejected}  onRejected  - callback will be executed on any error
     *
     * @return {Promise} Promise API to make queue
     *
     * @example
     * postcss([cssnext]).process(css).then(result => {
     *   console.log(result.css);
     * });
     */


    LazyResult.prototype.then = function then(onFulfilled, onRejected) {
        return this.async().then(onFulfilled, onRejected);
    };

    /**
     * Processes input CSS through synchronous and asynchronous plugins
     * and calls onRejected for each error thrown in any plugin.
     *
     * It implements standard Promise API.
     *
     * @param {onRejected} onRejected - callback will be executed on any error
     *
     * @return {Promise} Promise API to make queue
     *
     * @example
     * postcss([cssnext]).process(css).then(result => {
     *   console.log(result.css);
     * }).catch(error => {
     *   console.error(error);
     * });
     */


    LazyResult.prototype.catch = function _catch(onRejected) {
        return this.async().catch(onRejected);
    };

    LazyResult.prototype.handleError = function handleError(error, plugin) {
        try {
            this.error = error;
            if (error.name === 'CssSyntaxError' && !error.plugin) {
                error.plugin = plugin.postcssPlugin;
                error.setMessage();
            } else if (plugin.postcssVersion) {
                var pluginName = plugin.postcssPlugin;
                var pluginVer = plugin.postcssVersion;
                var runtimeVer = this.result.processor.version;
                var a = pluginVer.split('.');
                var b = runtimeVer.split('.');

                if (a[0] !== b[0] || parseInt(a[1]) > parseInt(b[1])) {
                    (0, _warnOnce2.default)('Your current PostCSS version ' + 'is ' + runtimeVer + ', but ' + pluginName + ' ' + 'uses ' + pluginVer + '. Perhaps this is ' + 'the source of the error below.');
                }
            }
        } catch (err) {
            if (console && console.error) console.error(err);
        }
    };

    LazyResult.prototype.asyncTick = function asyncTick(resolve, reject) {
        var _this = this;

        if (this.plugin >= this.processor.plugins.length) {
            this.processed = true;
            return resolve();
        }

        try {
            (function () {
                var plugin = _this.processor.plugins[_this.plugin];
                var promise = _this.run(plugin);
                _this.plugin += 1;

                if (isPromise(promise)) {
                    promise.then(function () {
                        _this.asyncTick(resolve, reject);
                    }).catch(function (error) {
                        _this.handleError(error, plugin);
                        _this.processed = true;
                        reject(error);
                    });
                } else {
                    _this.asyncTick(resolve, reject);
                }
            })();
        } catch (error) {
            this.processed = true;
            reject(error);
        }
    };

    LazyResult.prototype.async = function async() {
        var _this2 = this;

        if (this.processed) {
            return new Promise(function (resolve, reject) {
                if (_this2.error) {
                    reject(_this2.error);
                } else {
                    resolve(_this2.stringify());
                }
            });
        }
        if (this.processing) {
            return this.processing;
        }

        this.processing = new Promise(function (resolve, reject) {
            if (_this2.error) return reject(_this2.error);
            _this2.plugin = 0;
            _this2.asyncTick(resolve, reject);
        }).then(function () {
            _this2.processed = true;
            return _this2.stringify();
        });

        return this.processing;
    };

    LazyResult.prototype.sync = function sync() {
        if (this.processed) return this.result;
        this.processed = true;

        if (this.processing) {
            throw new Error('Use process(css).then(cb) to work with async plugins');
        }

        if (this.error) throw this.error;

        for (var _iterator = this.result.processor.plugins, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
            var _ref;

            if (_isArray) {
                if (_i >= _iterator.length) break;
                _ref = _iterator[_i++];
            } else {
                _i = _iterator.next();
                if (_i.done) break;
                _ref = _i.value;
            }

            var plugin = _ref;

            var promise = this.run(plugin);
            if (isPromise(promise)) {
                throw new Error('Use process(css).then(cb) to work with async plugins');
            }
        }

        return this.result;
    };

    LazyResult.prototype.run = function run(plugin) {
        this.result.lastPlugin = plugin;

        try {
            return plugin(this.result.root, this.result);
        } catch (error) {
            this.handleError(error, plugin);
            throw error;
        }
    };

    LazyResult.prototype.stringify = function stringify() {
        if (this.stringified) return this.result;
        this.stringified = true;

        this.sync();

        var opts = this.result.opts;
        var str = _stringify3.default;
        if (opts.syntax) str = opts.syntax.stringify;
        if (opts.stringifier) str = opts.stringifier;
        if (str.stringify) str = str.stringify;

        var map = new _mapGenerator2.default(str, this.result.root, this.result.opts);
        var data = map.generate();
        this.result.css = data[0];
        this.result.map = data[1];

        return this.result;
    };

    _createClass(LazyResult, [{
        key: 'processor',
        get: function get() {
            return this.result.processor;
        }

        /**
         * Options from the {@link Processor#process} call.
         * @type {processOptions}
         */

    }, {
        key: 'opts',
        get: function get() {
            return this.result.opts;
        }

        /**
         * Processes input CSS through synchronous plugins, converts `Root`
         * to a CSS string and returns {@link Result#css}.
         *
         * This property will only work with synchronous plugins.
         * If the processor contains any asynchronous plugins
         * it will throw an error. This is why this method is only
         * for debug purpose, you should always use {@link LazyResult#then}.
         *
         * @type {string}
         * @see Result#css
         */

    }, {
        key: 'css',
        get: function get() {
            return this.stringify().css;
        }

        /**
         * An alias for the `css` property. Use it with syntaxes
         * that generate non-CSS output.
         *
         * This property will only work with synchronous plugins.
         * If the processor contains any asynchronous plugins
         * it will throw an error. This is why this method is only
         * for debug purpose, you should always use {@link LazyResult#then}.
         *
         * @type {string}
         * @see Result#content
         */

    }, {
        key: 'content',
        get: function get() {
            return this.stringify().content;
        }

        /**
         * Processes input CSS through synchronous plugins
         * and returns {@link Result#map}.
         *
         * This property will only work with synchronous plugins.
         * If the processor contains any asynchronous plugins
         * it will throw an error. This is why this method is only
         * for debug purpose, you should always use {@link LazyResult#then}.
         *
         * @type {SourceMapGenerator}
         * @see Result#map
         */

    }, {
        key: 'map',
        get: function get() {
            return this.stringify().map;
        }

        /**
         * Processes input CSS through synchronous plugins
         * and returns {@link Result#root}.
         *
         * This property will only work with synchronous plugins. If the processor
         * contains any asynchronous plugins it will throw an error.
         *
         * This is why this method is only for debug purpose,
         * you should always use {@link LazyResult#then}.
         *
         * @type {Root}
         * @see Result#root
         */

    }, {
        key: 'root',
        get: function get() {
            return this.sync().root;
        }

        /**
         * Processes input CSS through synchronous plugins
         * and returns {@link Result#messages}.
         *
         * This property will only work with synchronous plugins. If the processor
         * contains any asynchronous plugins it will throw an error.
         *
         * This is why this method is only for debug purpose,
         * you should always use {@link LazyResult#then}.
         *
         * @type {Message[]}
         * @see Result#messages
         */

    }, {
        key: 'messages',
        get: function get() {
            return this.sync().messages;
        }
    }]);

    return LazyResult;
}();

exports.default = LazyResult;

/**
 * @callback onFulfilled
 * @param {Result} result
 */

/**
 * @callback onRejected
 * @param {Error} error
 */

module.exports = exports['default'];


},{"./map-generator":143,"./parse":145,"./result":150,"./stringify":154,"./warn-once":158}],142:[function(require,module,exports){
'use strict';

exports.__esModule = true;
/**
 * Contains helpers for safely splitting lists of CSS values,
 * preserving parentheses and quotes.
 *
 * @example
 * const list = postcss.list;
 *
 * @namespace list
 */
var list = {
    split: function split(string, separators, last) {
        var array = [];
        var current = '';
        var split = false;

        var func = 0;
        var quote = false;
        var escape = false;

        for (var i = 0; i < string.length; i++) {
            var letter = string[i];

            if (quote) {
                if (escape) {
                    escape = false;
                } else if (letter === '\\') {
                    escape = true;
                } else if (letter === quote) {
                    quote = false;
                }
            } else if (letter === '"' || letter === '\'') {
                quote = letter;
            } else if (letter === '(') {
                func += 1;
            } else if (letter === ')') {
                if (func > 0) func -= 1;
            } else if (func === 0) {
                if (separators.indexOf(letter) !== -1) split = true;
            }

            if (split) {
                if (current !== '') array.push(current.trim());
                current = '';
                split = false;
            } else {
                current += letter;
            }
        }

        if (last || current !== '') array.push(current.trim());
        return array;
    },


    /**
     * Safely splits space-separated values (such as those for `background`,
     * `border-radius`, and other shorthand properties).
     *
     * @param {string} string - space-separated values
     *
     * @return {string[]} split values
     *
     * @example
     * postcss.list.space('1px calc(10% + 1px)') //=> ['1px', 'calc(10% + 1px)']
     */
    space: function space(string) {
        var spaces = [' ', '\n', '\t'];
        return list.split(string, spaces);
    },


    /**
     * Safely splits comma-separated values (such as those for `transition-*`
     * and `background` properties).
     *
     * @param {string} string - comma-separated values
     *
     * @return {string[]} split values
     *
     * @example
     * postcss.list.comma('black, linear-gradient(white, black)')
     * //=> ['black', 'linear-gradient(white, black)']
     */
    comma: function comma(string) {
        var comma = ',';
        return list.split(string, [comma], true);
    }
};

exports.default = list;
module.exports = exports['default'];


},{}],143:[function(require,module,exports){
'use strict';

exports.__esModule = true;

var _jsBase = require('js-base64');

var _sourceMap = require('source-map');

var _sourceMap2 = _interopRequireDefault(_sourceMap);

var _path = require('path');

var _path2 = _interopRequireDefault(_path);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var MapGenerator = function () {
    function MapGenerator(stringify, root, opts) {
        _classCallCheck(this, MapGenerator);

        this.stringify = stringify;
        this.mapOpts = opts.map || {};
        this.root = root;
        this.opts = opts;
    }

    MapGenerator.prototype.isMap = function isMap() {
        if (typeof this.opts.map !== 'undefined') {
            return !!this.opts.map;
        } else {
            return this.previous().length > 0;
        }
    };

    MapGenerator.prototype.previous = function previous() {
        var _this = this;

        if (!this.previousMaps) {
            this.previousMaps = [];
            this.root.walk(function (node) {
                if (node.source && node.source.input.map) {
                    var map = node.source.input.map;
                    if (_this.previousMaps.indexOf(map) === -1) {
                        _this.previousMaps.push(map);
                    }
                }
            });
        }

        return this.previousMaps;
    };

    MapGenerator.prototype.isInline = function isInline() {
        if (typeof this.mapOpts.inline !== 'undefined') {
            return this.mapOpts.inline;
        }

        var annotation = this.mapOpts.annotation;
        if (typeof annotation !== 'undefined' && annotation !== true) {
            return false;
        }

        if (this.previous().length) {
            return this.previous().some(function (i) {
                return i.inline;
            });
        } else {
            return true;
        }
    };

    MapGenerator.prototype.isSourcesContent = function isSourcesContent() {
        if (typeof this.mapOpts.sourcesContent !== 'undefined') {
            return this.mapOpts.sourcesContent;
        }
        if (this.previous().length) {
            return this.previous().some(function (i) {
                return i.withContent();
            });
        } else {
            return true;
        }
    };

    MapGenerator.prototype.clearAnnotation = function clearAnnotation() {
        if (this.mapOpts.annotation === false) return;

        var node = void 0;
        for (var i = this.root.nodes.length - 1; i >= 0; i--) {
            node = this.root.nodes[i];
            if (node.type !== 'comment') continue;
            if (node.text.indexOf('# sourceMappingURL=') === 0) {
                this.root.removeChild(i);
            }
        }
    };

    MapGenerator.prototype.setSourcesContent = function setSourcesContent() {
        var _this2 = this;

        var already = {};
        this.root.walk(function (node) {
            if (node.source) {
                var from = node.source.input.from;
                if (from && !already[from]) {
                    already[from] = true;
                    var relative = _this2.relative(from);
                    _this2.map.setSourceContent(relative, node.source.input.css);
                }
            }
        });
    };

    MapGenerator.prototype.applyPrevMaps = function applyPrevMaps() {
        for (var _iterator = this.previous(), _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
            var _ref;

            if (_isArray) {
                if (_i >= _iterator.length) break;
                _ref = _iterator[_i++];
            } else {
                _i = _iterator.next();
                if (_i.done) break;
                _ref = _i.value;
            }

            var prev = _ref;

            var from = this.relative(prev.file);
            var root = prev.root || _path2.default.dirname(prev.file);
            var map = void 0;

            if (this.mapOpts.sourcesContent === false) {
                map = new _sourceMap2.default.SourceMapConsumer(prev.text);
                if (map.sourcesContent) {
                    map.sourcesContent = map.sourcesContent.map(function () {
                        return null;
                    });
                }
            } else {
                map = prev.consumer();
            }

            this.map.applySourceMap(map, from, this.relative(root));
        }
    };

    MapGenerator.prototype.isAnnotation = function isAnnotation() {
        if (this.isInline()) {
            return true;
        } else if (typeof this.mapOpts.annotation !== 'undefined') {
            return this.mapOpts.annotation;
        } else if (this.previous().length) {
            return this.previous().some(function (i) {
                return i.annotation;
            });
        } else {
            return true;
        }
    };

    MapGenerator.prototype.addAnnotation = function addAnnotation() {
        var content = void 0;

        if (this.isInline()) {
            content = 'data:application/json;base64,' + _jsBase.Base64.encode(this.map.toString());
        } else if (typeof this.mapOpts.annotation === 'string') {
            content = this.mapOpts.annotation;
        } else {
            content = this.outputFile() + '.map';
        }

        var eol = '\n';
        if (this.css.indexOf('\r\n') !== -1) eol = '\r\n';

        this.css += eol + '/*# sourceMappingURL=' + content + ' */';
    };

    MapGenerator.prototype.outputFile = function outputFile() {
        if (this.opts.to) {
            return this.relative(this.opts.to);
        } else if (this.opts.from) {
            return this.relative(this.opts.from);
        } else {
            return 'to.css';
        }
    };

    MapGenerator.prototype.generateMap = function generateMap() {
        this.generateString();
        if (this.isSourcesContent()) this.setSourcesContent();
        if (this.previous().length > 0) this.applyPrevMaps();
        if (this.isAnnotation()) this.addAnnotation();

        if (this.isInline()) {
            return [this.css];
        } else {
            return [this.css, this.map];
        }
    };

    MapGenerator.prototype.relative = function relative(file) {
        if (file.indexOf('<') === 0) return file;
        if (/^\w+:\/\//.test(file)) return file;

        var from = this.opts.to ? _path2.default.dirname(this.opts.to) : '.';

        if (typeof this.mapOpts.annotation === 'string') {
            from = _path2.default.dirname(_path2.default.resolve(from, this.mapOpts.annotation));
        }

        file = _path2.default.relative(from, file);
        if (_path2.default.sep === '\\') {
            return file.replace(/\\/g, '/');
        } else {
            return file;
        }
    };

    MapGenerator.prototype.sourcePath = function sourcePath(node) {
        if (this.mapOpts.from) {
            return this.mapOpts.from;
        } else {
            return this.relative(node.source.input.from);
        }
    };

    MapGenerator.prototype.generateString = function generateString() {
        var _this3 = this;

        this.css = '';
        this.map = new _sourceMap2.default.SourceMapGenerator({ file: this.outputFile() });

        var line = 1;
        var column = 1;

        var lines = void 0,
            last = void 0;
        this.stringify(this.root, function (str, node, type) {
            _this3.css += str;

            if (node && type !== 'end') {
                if (node.source && node.source.start) {
                    _this3.map.addMapping({
                        source: _this3.sourcePath(node),
                        generated: { line: line, column: column - 1 },
                        original: {
                            line: node.source.start.line,
                            column: node.source.start.column - 1
                        }
                    });
                } else {
                    _this3.map.addMapping({
                        source: '<no source>',
                        original: { line: 1, column: 0 },
                        generated: { line: line, column: column - 1 }
                    });
                }
            }

            lines = str.match(/\n/g);
            if (lines) {
                line += lines.length;
                last = str.lastIndexOf('\n');
                column = str.length - last;
            } else {
                column += str.length;
            }

            if (node && type !== 'start') {
                if (node.source && node.source.end) {
                    _this3.map.addMapping({
                        source: _this3.sourcePath(node),
                        generated: { line: line, column: column - 1 },
                        original: {
                            line: node.source.end.line,
                            column: node.source.end.column
                        }
                    });
                } else {
                    _this3.map.addMapping({
                        source: '<no source>',
                        original: { line: 1, column: 0 },
                        generated: { line: line, column: column - 1 }
                    });
                }
            }
        });
    };

    MapGenerator.prototype.generate = function generate() {
        this.clearAnnotation();

        if (this.isMap()) {
            return this.generateMap();
        } else {
            var result = '';
            this.stringify(this.root, function (i) {
                result += i;
            });
            return [result];
        }
    };

    return MapGenerator;
}();

exports.default = MapGenerator;
module.exports = exports['default'];


},{"js-base64":126,"path":129,"source-map":171}],144:[function(require,module,exports){
'use strict';

exports.__esModule = true;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

var _cssSyntaxError = require('./css-syntax-error');

var _cssSyntaxError2 = _interopRequireDefault(_cssSyntaxError);

var _stringifier = require('./stringifier');

var _stringifier2 = _interopRequireDefault(_stringifier);

var _stringify = require('./stringify');

var _stringify2 = _interopRequireDefault(_stringify);

var _warnOnce = require('./warn-once');

var _warnOnce2 = _interopRequireDefault(_warnOnce);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var cloneNode = function cloneNode(obj, parent) {
    var cloned = new obj.constructor();

    for (var i in obj) {
        if (!obj.hasOwnProperty(i)) continue;
        var value = obj[i];
        var type = typeof value === 'undefined' ? 'undefined' : _typeof(value);

        if (i === 'parent' && type === 'object') {
            if (parent) cloned[i] = parent;
        } else if (i === 'source') {
            cloned[i] = value;
        } else if (value instanceof Array) {
            cloned[i] = value.map(function (j) {
                return cloneNode(j, cloned);
            });
        } else if (i !== 'before' && i !== 'after' && i !== 'between' && i !== 'semicolon') {
            if (type === 'object' && value !== null) value = cloneNode(value);
            cloned[i] = value;
        }
    }

    return cloned;
};

/**
 * All node classes inherit the following common methods.
 *
 * @abstract
 */

var Node = function () {

    /**
     * @param {object} [defaults] - value for node properties
     */
    function Node() {
        var defaults = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

        _classCallCheck(this, Node);

        this.raws = {};
        for (var name in defaults) {
            this[name] = defaults[name];
        }
    }

    /**
     * Returns a CssSyntaxError instance containing the original position
     * of the node in the source, showing line and column numbers and also
     * a small excerpt to facilitate debugging.
     *
     * If present, an input source map will be used to get the original position
     * of the source, even from a previous compilation step
     * (e.g., from Sass compilation).
     *
     * This method produces very useful error messages.
     *
     * @param {string} message     - error description
     * @param {object} [opts]      - options
     * @param {string} opts.plugin - plugin name that created this error.
     *                               PostCSS will set it automatically.
     * @param {string} opts.word   - a word inside a node’s string that should
     *                               be highlighted as the source of the error
     * @param {number} opts.index  - an index inside a node’s string that should
     *                               be highlighted as the source of the error
     *
     * @return {CssSyntaxError} error object to throw it
     *
     * @example
     * if ( !variables[name] ) {
     *   throw decl.error('Unknown variable ' + name, { word: name });
     *   // CssSyntaxError: postcss-vars:a.sass:4:3: Unknown variable $black
     *   //   color: $black
     *   // a
     *   //          ^
     *   //   background: white
     * }
     */


    Node.prototype.error = function error(message) {
        var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

        if (this.source) {
            var pos = this.positionBy(opts);
            return this.source.input.error(message, pos.line, pos.column, opts);
        } else {
            return new _cssSyntaxError2.default(message);
        }
    };

    /**
     * This method is provided as a convenience wrapper for {@link Result#warn}.
     *
     * @param {Result} result      - the {@link Result} instance
     *                               that will receive the warning
     * @param {string} text        - warning message
     * @param {object} [opts]      - options
     * @param {string} opts.plugin - plugin name that created this warning.
     *                               PostCSS will set it automatically.
     * @param {string} opts.word   - a word inside a node’s string that should
     *                               be highlighted as the source of the warning
     * @param {number} opts.index  - an index inside a node’s string that should
     *                               be highlighted as the source of the warning
     *
     * @return {Warning} created warning object
     *
     * @example
     * const plugin = postcss.plugin('postcss-deprecated', () => {
     *   return (root, result) => {
     *     root.walkDecls('bad', decl => {
     *       decl.warn(result, 'Deprecated property bad');
     *     });
     *   };
     * });
     */


    Node.prototype.warn = function warn(result, text, opts) {
        var data = { node: this };
        for (var i in opts) {
            data[i] = opts[i];
        }return result.warn(text, data);
    };

    /**
     * Removes the node from its parent and cleans the parent properties
     * from the node and its children.
     *
     * @example
     * if ( decl.prop.match(/^-webkit-/) ) {
     *   decl.remove();
     * }
     *
     * @return {Node} node to make calls chain
     */


    Node.prototype.remove = function remove() {
        if (this.parent) {
            this.parent.removeChild(this);
        }
        this.parent = undefined;
        return this;
    };

    /**
     * Returns a CSS string representing the node.
     *
     * @param {stringifier|syntax} [stringifier] - a syntax to use
     *                                             in string generation
     *
     * @return {string} CSS string of this node
     *
     * @example
     * postcss.rule({ selector: 'a' }).toString() //=> "a {}"
     */


    Node.prototype.toString = function toString() {
        var stringifier = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : _stringify2.default;

        if (stringifier.stringify) stringifier = stringifier.stringify;
        var result = '';
        stringifier(this, function (i) {
            result += i;
        });
        return result;
    };

    /**
     * Returns a clone of the node.
     *
     * The resulting cloned node and its (cloned) children will have
     * a clean parent and code style properties.
     *
     * @param {object} [overrides] - new properties to override in the clone.
     *
     * @example
     * const cloned = decl.clone({ prop: '-moz-' + decl.prop });
     * cloned.raws.before  //=> undefined
     * cloned.parent       //=> undefined
     * cloned.toString()   //=> -moz-transform: scale(0)
     *
     * @return {Node} clone of the node
     */


    Node.prototype.clone = function clone() {
        var overrides = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

        var cloned = cloneNode(this);
        for (var name in overrides) {
            cloned[name] = overrides[name];
        }
        return cloned;
    };

    /**
     * Shortcut to clone the node and insert the resulting cloned node
     * before the current node.
     *
     * @param {object} [overrides] - new properties to override in the clone.
     *
     * @example
     * decl.cloneBefore({ prop: '-moz-' + decl.prop });
     *
     * @return {Node} - new node
     */


    Node.prototype.cloneBefore = function cloneBefore() {
        var overrides = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

        var cloned = this.clone(overrides);
        this.parent.insertBefore(this, cloned);
        return cloned;
    };

    /**
     * Shortcut to clone the node and insert the resulting cloned node
     * after the current node.
     *
     * @param {object} [overrides] - new properties to override in the clone.
     *
     * @return {Node} - new node
     */


    Node.prototype.cloneAfter = function cloneAfter() {
        var overrides = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

        var cloned = this.clone(overrides);
        this.parent.insertAfter(this, cloned);
        return cloned;
    };

    /**
     * Inserts node(s) before the current node and removes the current node.
     *
     * @param {...Node} nodes - node(s) to replace current one
     *
     * @example
     * if ( atrule.name == 'mixin' ) {
     *   atrule.replaceWith(mixinRules[atrule.params]);
     * }
     *
     * @return {Node} current node to methods chain
     */


    Node.prototype.replaceWith = function replaceWith() {
        if (this.parent) {
            for (var _len = arguments.length, nodes = Array(_len), _key = 0; _key < _len; _key++) {
                nodes[_key] = arguments[_key];
            }

            for (var _iterator = nodes, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
                var _ref;

                if (_isArray) {
                    if (_i >= _iterator.length) break;
                    _ref = _iterator[_i++];
                } else {
                    _i = _iterator.next();
                    if (_i.done) break;
                    _ref = _i.value;
                }

                var node = _ref;

                this.parent.insertBefore(this, node);
            }

            this.remove();
        }

        return this;
    };

    /**
     * Removes the node from its current parent and inserts it
     * at the end of `newParent`.
     *
     * This will clean the `before` and `after` code {@link Node#raws} data
     * from the node and replace them with the indentation style of `newParent`.
     * It will also clean the `between` property
     * if `newParent` is in another {@link Root}.
     *
     * @param {Container} newParent - container node where the current node
     *                                will be moved
     *
     * @example
     * atrule.moveTo(atrule.root());
     *
     * @return {Node} current node to methods chain
     */


    Node.prototype.moveTo = function moveTo(newParent) {
        this.cleanRaws(this.root() === newParent.root());
        this.remove();
        newParent.append(this);
        return this;
    };

    /**
     * Removes the node from its current parent and inserts it into
     * a new parent before `otherNode`.
     *
     * This will also clean the node’s code style properties just as it would
     * in {@link Node#moveTo}.
     *
     * @param {Node} otherNode - node that will be before current node
     *
     * @return {Node} current node to methods chain
     */


    Node.prototype.moveBefore = function moveBefore(otherNode) {
        this.cleanRaws(this.root() === otherNode.root());
        this.remove();
        otherNode.parent.insertBefore(otherNode, this);
        return this;
    };

    /**
     * Removes the node from its current parent and inserts it into
     * a new parent after `otherNode`.
     *
     * This will also clean the node’s code style properties just as it would
     * in {@link Node#moveTo}.
     *
     * @param {Node} otherNode - node that will be after current node
     *
     * @return {Node} current node to methods chain
     */


    Node.prototype.moveAfter = function moveAfter(otherNode) {
        this.cleanRaws(this.root() === otherNode.root());
        this.remove();
        otherNode.parent.insertAfter(otherNode, this);
        return this;
    };

    /**
     * Returns the next child of the node’s parent.
     * Returns `undefined` if the current node is the last child.
     *
     * @return {Node|undefined} next node
     *
     * @example
     * if ( comment.text === 'delete next' ) {
     *   const next = comment.next();
     *   if ( next ) {
     *     next.remove();
     *   }
     * }
     */


    Node.prototype.next = function next() {
        var index = this.parent.index(this);
        return this.parent.nodes[index + 1];
    };

    /**
     * Returns the previous child of the node’s parent.
     * Returns `undefined` if the current node is the first child.
     *
     * @return {Node|undefined} previous node
     *
     * @example
     * const annotation = decl.prev();
     * if ( annotation.type == 'comment' ) {
     *  readAnnotation(annotation.text);
     * }
     */


    Node.prototype.prev = function prev() {
        var index = this.parent.index(this);
        return this.parent.nodes[index - 1];
    };

    Node.prototype.toJSON = function toJSON() {
        var fixed = {};

        for (var name in this) {
            if (!this.hasOwnProperty(name)) continue;
            if (name === 'parent') continue;
            var value = this[name];

            if (value instanceof Array) {
                fixed[name] = value.map(function (i) {
                    if ((typeof i === 'undefined' ? 'undefined' : _typeof(i)) === 'object' && i.toJSON) {
                        return i.toJSON();
                    } else {
                        return i;
                    }
                });
            } else if ((typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object' && value.toJSON) {
                fixed[name] = value.toJSON();
            } else {
                fixed[name] = value;
            }
        }

        return fixed;
    };

    /**
     * Returns a {@link Node#raws} value. If the node is missing
     * the code style property (because the node was manually built or cloned),
     * PostCSS will try to autodetect the code style property by looking
     * at other nodes in the tree.
     *
     * @param {string} prop          - name of code style property
     * @param {string} [defaultType] - name of default value, it can be missed
     *                                 if the value is the same as prop
     *
     * @example
     * const root = postcss.parse('a { background: white }');
     * root.nodes[0].append({ prop: 'color', value: 'black' });
     * root.nodes[0].nodes[1].raws.before   //=> undefined
     * root.nodes[0].nodes[1].raw('before') //=> ' '
     *
     * @return {string} code style value
     */


    Node.prototype.raw = function raw(prop, defaultType) {
        var str = new _stringifier2.default();
        return str.raw(this, prop, defaultType);
    };

    /**
     * Finds the Root instance of the node’s tree.
     *
     * @example
     * root.nodes[0].nodes[0].root() === root
     *
     * @return {Root} root parent
     */


    Node.prototype.root = function root() {
        var result = this;
        while (result.parent) {
            result = result.parent;
        }return result;
    };

    Node.prototype.cleanRaws = function cleanRaws(keepBetween) {
        delete this.raws.before;
        delete this.raws.after;
        if (!keepBetween) delete this.raws.between;
    };

    Node.prototype.positionInside = function positionInside(index) {
        var string = this.toString();
        var column = this.source.start.column;
        var line = this.source.start.line;

        for (var i = 0; i < index; i++) {
            if (string[i] === '\n') {
                column = 1;
                line += 1;
            } else {
                column += 1;
            }
        }

        return { line: line, column: column };
    };

    Node.prototype.positionBy = function positionBy(opts) {
        var pos = this.source.start;
        if (opts.index) {
            pos = this.positionInside(opts.index);
        } else if (opts.word) {
            var index = this.toString().indexOf(opts.word);
            if (index !== -1) pos = this.positionInside(index);
        }
        return pos;
    };

    Node.prototype.removeSelf = function removeSelf() {
        (0, _warnOnce2.default)('Node#removeSelf is deprecated. Use Node#remove.');
        return this.remove();
    };

    Node.prototype.replace = function replace(nodes) {
        (0, _warnOnce2.default)('Node#replace is deprecated. Use Node#replaceWith');
        return this.replaceWith(nodes);
    };

    Node.prototype.style = function style(own, detect) {
        (0, _warnOnce2.default)('Node#style() is deprecated. Use Node#raw()');
        return this.raw(own, detect);
    };

    Node.prototype.cleanStyles = function cleanStyles(keepBetween) {
        (0, _warnOnce2.default)('Node#cleanStyles() is deprecated. Use Node#cleanRaws()');
        return this.cleanRaws(keepBetween);
    };

    _createClass(Node, [{
        key: 'before',
        get: function get() {
            (0, _warnOnce2.default)('Node#before is deprecated. Use Node#raws.before');
            return this.raws.before;
        },
        set: function set(val) {
            (0, _warnOnce2.default)('Node#before is deprecated. Use Node#raws.before');
            this.raws.before = val;
        }
    }, {
        key: 'between',
        get: function get() {
            (0, _warnOnce2.default)('Node#between is deprecated. Use Node#raws.between');
            return this.raws.between;
        },
        set: function set(val) {
            (0, _warnOnce2.default)('Node#between is deprecated. Use Node#raws.between');
            this.raws.between = val;
        }

        /**
         * @memberof Node#
         * @member {string} type - String representing the node’s type.
         *                         Possible values are `root`, `atrule`, `rule`,
         *                         `decl`, or `comment`.
         *
         * @example
         * postcss.decl({ prop: 'color', value: 'black' }).type //=> 'decl'
         */

        /**
         * @memberof Node#
         * @member {Container} parent - the node’s parent node.
         *
         * @example
         * root.nodes[0].parent == root;
         */

        /**
         * @memberof Node#
         * @member {source} source - the input source of the node
         *
         * The property is used in source map generation.
         *
         * If you create a node manually (e.g., with `postcss.decl()`),
         * that node will not have a `source` property and will be absent
         * from the source map. For this reason, the plugin developer should
         * consider cloning nodes to create new ones (in which case the new node’s
         * source will reference the original, cloned node) or setting
         * the `source` property manually.
         *
         * ```js
         * // Bad
         * const prefixed = postcss.decl({
         *   prop: '-moz-' + decl.prop,
         *   value: decl.value
         * });
         *
         * // Good
         * const prefixed = decl.clone({ prop: '-moz-' + decl.prop });
         * ```
         *
         * ```js
         * if ( atrule.name == 'add-link' ) {
         *   const rule = postcss.rule({ selector: 'a', source: atrule.source });
         *   atrule.parent.insertBefore(atrule, rule);
         * }
         * ```
         *
         * @example
         * decl.source.input.from //=> '/home/ai/a.sass'
         * decl.source.start      //=> { line: 10, column: 2 }
         * decl.source.end        //=> { line: 10, column: 12 }
         */

        /**
         * @memberof Node#
         * @member {object} raws - Information to generate byte-to-byte equal
         *                         node string as it was in the origin input.
         *
         * Every parser saves its own properties,
         * but the default CSS parser uses:
         *
         * * `before`: the space symbols before the node. It also stores `*`
         *   and `_` symbols before the declaration (IE hack).
         * * `after`: the space symbols after the last child of the node
         *   to the end of the node.
         * * `between`: the symbols between the property and value
         *   for declarations, selector and `{` for rules, or last parameter
         *   and `{` for at-rules.
         * * `semicolon`: contains true if the last child has
         *   an (optional) semicolon.
         * * `afterName`: the space between the at-rule name and its parameters.
         * * `left`: the space symbols between `/*` and the comment’s text.
         * * `right`: the space symbols between the comment’s text
         *   and <code>*&#47;</code>.
         * * `important`: the content of the important statement,
         *   if it is not just `!important`.
         *
         * PostCSS cleans selectors, declaration values and at-rule parameters
         * from comments and extra spaces, but it stores origin content in raws
         * properties. As such, if you don’t change a declaration’s value,
         * PostCSS will use the raw value with comments.
         *
         * @example
         * const root = postcss.parse('a {\n  color:black\n}')
         * root.first.first.raws //=> { before: '\n  ', between: ':' }
         */

    }]);

    return Node;
}();

exports.default = Node;

/**
 * @typedef {object} position
 * @property {number} line   - source line in file
 * @property {number} column - source column in file
 */

/**
 * @typedef {object} source
 * @property {Input} input    - {@link Input} with input file
 * @property {position} start - The starting position of the node’s source
 * @property {position} end   - The ending position of the node’s source
 */

module.exports = exports['default'];


},{"./css-syntax-error":138,"./stringifier":153,"./stringify":154,"./warn-once":158}],145:[function(require,module,exports){
'use strict';

exports.__esModule = true;
exports.default = parse;

var _parser = require('./parser');

var _parser2 = _interopRequireDefault(_parser);

var _input = require('./input');

var _input2 = _interopRequireDefault(_input);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function parse(css, opts) {
    if (opts && opts.safe) {
        throw new Error('Option safe was removed. ' + 'Use parser: require("postcss-safe-parser")');
    }

    var input = new _input2.default(css, opts);

    var parser = new _parser2.default(input);
    try {
        parser.tokenize();
        parser.loop();
    } catch (e) {
        if (e.name === 'CssSyntaxError' && opts && opts.from) {
            if (/\.scss$/i.test(opts.from)) {
                e.message += '\nYou tried to parse SCSS with ' + 'the standard CSS parser; ' + 'try again with the postcss-scss parser';
            } else if (/\.less$/i.test(opts.from)) {
                e.message += '\nYou tried to parse Less with ' + 'the standard CSS parser; ' + 'try again with the postcss-less parser';
            }
        }
        throw e;
    }

    return parser.root;
}
module.exports = exports['default'];


},{"./input":140,"./parser":146}],146:[function(require,module,exports){
'use strict';

exports.__esModule = true;

var _declaration = require('./declaration');

var _declaration2 = _interopRequireDefault(_declaration);

var _tokenize = require('./tokenize');

var _tokenize2 = _interopRequireDefault(_tokenize);

var _comment = require('./comment');

var _comment2 = _interopRequireDefault(_comment);

var _atRule = require('./at-rule');

var _atRule2 = _interopRequireDefault(_atRule);

var _root = require('./root');

var _root2 = _interopRequireDefault(_root);

var _rule = require('./rule');

var _rule2 = _interopRequireDefault(_rule);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var Parser = function () {
    function Parser(input) {
        _classCallCheck(this, Parser);

        this.input = input;

        this.pos = 0;
        this.root = new _root2.default();
        this.current = this.root;
        this.spaces = '';
        this.semicolon = false;

        this.root.source = { input: input, start: { line: 1, column: 1 } };
    }

    Parser.prototype.tokenize = function tokenize() {
        this.tokens = (0, _tokenize2.default)(this.input);
    };

    Parser.prototype.loop = function loop() {
        var token = void 0;
        while (this.pos < this.tokens.length) {
            token = this.tokens[this.pos];

            switch (token[0]) {

                case 'space':
                case ';':
                    this.spaces += token[1];
                    break;

                case '}':
                    this.end(token);
                    break;

                case 'comment':
                    this.comment(token);
                    break;

                case 'at-word':
                    this.atrule(token);
                    break;

                case '{':
                    this.emptyRule(token);
                    break;

                default:
                    this.other();
                    break;
            }

            this.pos += 1;
        }
        this.endFile();
    };

    Parser.prototype.comment = function comment(token) {
        var node = new _comment2.default();
        this.init(node, token[2], token[3]);
        node.source.end = { line: token[4], column: token[5] };

        var text = token[1].slice(2, -2);
        if (/^\s*$/.test(text)) {
            node.text = '';
            node.raws.left = text;
            node.raws.right = '';
        } else {
            var match = text.match(/^(\s*)([^]*[^\s])(\s*)$/);
            node.text = match[2];
            node.raws.left = match[1];
            node.raws.right = match[3];
        }
    };

    Parser.prototype.emptyRule = function emptyRule(token) {
        var node = new _rule2.default();
        this.init(node, token[2], token[3]);
        node.selector = '';
        node.raws.between = '';
        this.current = node;
    };

    Parser.prototype.other = function other() {
        var token = void 0;
        var end = false;
        var type = null;
        var colon = false;
        var bracket = null;
        var brackets = [];

        var start = this.pos;
        while (this.pos < this.tokens.length) {
            token = this.tokens[this.pos];
            type = token[0];

            if (type === '(' || type === '[') {
                if (!bracket) bracket = token;
                brackets.push(type === '(' ? ')' : ']');
            } else if (brackets.length === 0) {
                if (type === ';') {
                    if (colon) {
                        this.decl(this.tokens.slice(start, this.pos + 1));
                        return;
                    } else {
                        break;
                    }
                } else if (type === '{') {
                    this.rule(this.tokens.slice(start, this.pos + 1));
                    return;
                } else if (type === '}') {
                    this.pos -= 1;
                    end = true;
                    break;
                } else if (type === ':') {
                    colon = true;
                }
            } else if (type === brackets[brackets.length - 1]) {
                brackets.pop();
                if (brackets.length === 0) bracket = null;
            }

            this.pos += 1;
        }
        if (this.pos === this.tokens.length) {
            this.pos -= 1;
            end = true;
        }

        if (brackets.length > 0) this.unclosedBracket(bracket);

        if (end && colon) {
            while (this.pos > start) {
                token = this.tokens[this.pos][0];
                if (token !== 'space' && token !== 'comment') break;
                this.pos -= 1;
            }
            this.decl(this.tokens.slice(start, this.pos + 1));
            return;
        }

        this.unknownWord(start);
    };

    Parser.prototype.rule = function rule(tokens) {
        tokens.pop();

        var node = new _rule2.default();
        this.init(node, tokens[0][2], tokens[0][3]);

        node.raws.between = this.spacesFromEnd(tokens);
        this.raw(node, 'selector', tokens);
        this.current = node;
    };

    Parser.prototype.decl = function decl(tokens) {
        var node = new _declaration2.default();
        this.init(node);

        var last = tokens[tokens.length - 1];
        if (last[0] === ';') {
            this.semicolon = true;
            tokens.pop();
        }
        if (last[4]) {
            node.source.end = { line: last[4], column: last[5] };
        } else {
            node.source.end = { line: last[2], column: last[3] };
        }

        while (tokens[0][0] !== 'word') {
            node.raws.before += tokens.shift()[1];
        }
        node.source.start = { line: tokens[0][2], column: tokens[0][3] };

        node.prop = '';
        while (tokens.length) {
            var type = tokens[0][0];
            if (type === ':' || type === 'space' || type === 'comment') {
                break;
            }
            node.prop += tokens.shift()[1];
        }

        node.raws.between = '';

        var token = void 0;
        while (tokens.length) {
            token = tokens.shift();

            if (token[0] === ':') {
                node.raws.between += token[1];
                break;
            } else {
                node.raws.between += token[1];
            }
        }

        if (node.prop[0] === '_' || node.prop[0] === '*') {
            node.raws.before += node.prop[0];
            node.prop = node.prop.slice(1);
        }
        node.raws.between += this.spacesFromStart(tokens);
        this.precheckMissedSemicolon(tokens);

        for (var i = tokens.length - 1; i > 0; i--) {
            token = tokens[i];
            if (token[1] === '!important') {
                node.important = true;
                var string = this.stringFrom(tokens, i);
                string = this.spacesFromEnd(tokens) + string;
                if (string !== ' !important') node.raws.important = string;
                break;
            } else if (token[1] === 'important') {
                var cache = tokens.slice(0);
                var str = '';
                for (var j = i; j > 0; j--) {
                    var _type = cache[j][0];
                    if (str.trim().indexOf('!') === 0 && _type !== 'space') {
                        break;
                    }
                    str = cache.pop()[1] + str;
                }
                if (str.trim().indexOf('!') === 0) {
                    node.important = true;
                    node.raws.important = str;
                    tokens = cache;
                }
            }

            if (token[0] !== 'space' && token[0] !== 'comment') {
                break;
            }
        }

        this.raw(node, 'value', tokens);

        if (node.value.indexOf(':') !== -1) this.checkMissedSemicolon(tokens);
    };

    Parser.prototype.atrule = function atrule(token) {
        var node = new _atRule2.default();
        node.name = token[1].slice(1);
        if (node.name === '') {
            this.unnamedAtrule(node, token);
        }
        this.init(node, token[2], token[3]);

        var last = false;
        var open = false;
        var params = [];

        this.pos += 1;
        while (this.pos < this.tokens.length) {
            token = this.tokens[this.pos];

            if (token[0] === ';') {
                node.source.end = { line: token[2], column: token[3] };
                this.semicolon = true;
                break;
            } else if (token[0] === '{') {
                open = true;
                break;
            } else if (token[0] === '}') {
                this.end(token);
                break;
            } else {
                params.push(token);
            }

            this.pos += 1;
        }
        if (this.pos === this.tokens.length) {
            last = true;
        }

        node.raws.between = this.spacesFromEnd(params);
        if (params.length) {
            node.raws.afterName = this.spacesFromStart(params);
            this.raw(node, 'params', params);
            if (last) {
                token = params[params.length - 1];
                node.source.end = { line: token[4], column: token[5] };
                this.spaces = node.raws.between;
                node.raws.between = '';
            }
        } else {
            node.raws.afterName = '';
            node.params = '';
        }

        if (open) {
            node.nodes = [];
            this.current = node;
        }
    };

    Parser.prototype.end = function end(token) {
        if (this.current.nodes && this.current.nodes.length) {
            this.current.raws.semicolon = this.semicolon;
        }
        this.semicolon = false;

        this.current.raws.after = (this.current.raws.after || '') + this.spaces;
        this.spaces = '';

        if (this.current.parent) {
            this.current.source.end = { line: token[2], column: token[3] };
            this.current = this.current.parent;
        } else {
            this.unexpectedClose(token);
        }
    };

    Parser.prototype.endFile = function endFile() {
        if (this.current.parent) this.unclosedBlock();
        if (this.current.nodes && this.current.nodes.length) {
            this.current.raws.semicolon = this.semicolon;
        }
        this.current.raws.after = (this.current.raws.after || '') + this.spaces;
    };

    // Helpers

    Parser.prototype.init = function init(node, line, column) {
        this.current.push(node);

        node.source = { start: { line: line, column: column }, input: this.input };
        node.raws.before = this.spaces;
        this.spaces = '';
        if (node.type !== 'comment') this.semicolon = false;
    };

    Parser.prototype.raw = function raw(node, prop, tokens) {
        var token = void 0,
            type = void 0;
        var length = tokens.length;
        var value = '';
        var clean = true;
        for (var i = 0; i < length; i += 1) {
            token = tokens[i];
            type = token[0];
            if (type === 'comment' || type === 'space' && i === length - 1) {
                clean = false;
            } else {
                value += token[1];
            }
        }
        if (!clean) {
            var raw = tokens.reduce(function (all, i) {
                return all + i[1];
            }, '');
            node.raws[prop] = { value: value, raw: raw };
        }
        node[prop] = value;
    };

    Parser.prototype.spacesFromEnd = function spacesFromEnd(tokens) {
        var lastTokenType = void 0;
        var spaces = '';
        while (tokens.length) {
            lastTokenType = tokens[tokens.length - 1][0];
            if (lastTokenType !== 'space' && lastTokenType !== 'comment') break;
            spaces = tokens.pop()[1] + spaces;
        }
        return spaces;
    };

    Parser.prototype.spacesFromStart = function spacesFromStart(tokens) {
        var next = void 0;
        var spaces = '';
        while (tokens.length) {
            next = tokens[0][0];
            if (next !== 'space' && next !== 'comment') break;
            spaces += tokens.shift()[1];
        }
        return spaces;
    };

    Parser.prototype.stringFrom = function stringFrom(tokens, from) {
        var result = '';
        for (var i = from; i < tokens.length; i++) {
            result += tokens[i][1];
        }
        tokens.splice(from, tokens.length - from);
        return result;
    };

    Parser.prototype.colon = function colon(tokens) {
        var brackets = 0;
        var token = void 0,
            type = void 0,
            prev = void 0;
        for (var i = 0; i < tokens.length; i++) {
            token = tokens[i];
            type = token[0];

            if (type === '(') {
                brackets += 1;
            } else if (type === ')') {
                brackets -= 1;
            } else if (brackets === 0 && type === ':') {
                if (!prev) {
                    this.doubleColon(token);
                } else if (prev[0] === 'word' && prev[1] === 'progid') {
                    continue;
                } else {
                    return i;
                }
            }

            prev = token;
        }
        return false;
    };

    // Errors

    Parser.prototype.unclosedBracket = function unclosedBracket(bracket) {
        throw this.input.error('Unclosed bracket', bracket[2], bracket[3]);
    };

    Parser.prototype.unknownWord = function unknownWord(start) {
        var token = this.tokens[start];
        throw this.input.error('Unknown word', token[2], token[3]);
    };

    Parser.prototype.unexpectedClose = function unexpectedClose(token) {
        throw this.input.error('Unexpected }', token[2], token[3]);
    };

    Parser.prototype.unclosedBlock = function unclosedBlock() {
        var pos = this.current.source.start;
        throw this.input.error('Unclosed block', pos.line, pos.column);
    };

    Parser.prototype.doubleColon = function doubleColon(token) {
        throw this.input.error('Double colon', token[2], token[3]);
    };

    Parser.prototype.unnamedAtrule = function unnamedAtrule(node, token) {
        throw this.input.error('At-rule without name', token[2], token[3]);
    };

    Parser.prototype.precheckMissedSemicolon = function precheckMissedSemicolon(tokens) {
        // Hook for Safe Parser
        tokens;
    };

    Parser.prototype.checkMissedSemicolon = function checkMissedSemicolon(tokens) {
        var colon = this.colon(tokens);
        if (colon === false) return;

        var founded = 0;
        var token = void 0;
        for (var j = colon - 1; j >= 0; j--) {
            token = tokens[j];
            if (token[0] !== 'space') {
                founded += 1;
                if (founded === 2) break;
            }
        }
        throw this.input.error('Missed semicolon', token[2], token[3]);
    };

    return Parser;
}();

exports.default = Parser;
module.exports = exports['default'];


},{"./at-rule":135,"./comment":136,"./declaration":139,"./root":151,"./rule":152,"./tokenize":156}],147:[function(require,module,exports){
'use strict';

exports.__esModule = true;

var _declaration = require('./declaration');

var _declaration2 = _interopRequireDefault(_declaration);

var _processor = require('./processor');

var _processor2 = _interopRequireDefault(_processor);

var _stringify = require('./stringify');

var _stringify2 = _interopRequireDefault(_stringify);

var _comment = require('./comment');

var _comment2 = _interopRequireDefault(_comment);

var _atRule = require('./at-rule');

var _atRule2 = _interopRequireDefault(_atRule);

var _vendor = require('./vendor');

var _vendor2 = _interopRequireDefault(_vendor);

var _parse = require('./parse');

var _parse2 = _interopRequireDefault(_parse);

var _list = require('./list');

var _list2 = _interopRequireDefault(_list);

var _rule = require('./rule');

var _rule2 = _interopRequireDefault(_rule);

var _root = require('./root');

var _root2 = _interopRequireDefault(_root);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * Create a new {@link Processor} instance that will apply `plugins`
 * as CSS processors.
 *
 * @param {Array.<Plugin|pluginFunction>|Processor} plugins - PostCSS
 *        plugins. See {@link Processor#use} for plugin format.
 *
 * @return {Processor} Processor to process multiple CSS
 *
 * @example
 * import postcss from 'postcss';
 *
 * postcss(plugins).process(css, { from, to }).then(result => {
 *   console.log(result.css);
 * });
 *
 * @namespace postcss
 */
function postcss() {
  for (var _len = arguments.length, plugins = Array(_len), _key = 0; _key < _len; _key++) {
    plugins[_key] = arguments[_key];
  }

  if (plugins.length === 1 && Array.isArray(plugins[0])) {
    plugins = plugins[0];
  }
  return new _processor2.default(plugins);
}

/**
 * Creates a PostCSS plugin with a standard API.
 *
 * The newly-wrapped function will provide both the name and PostCSS
 * version of the plugin.
 *
 * ```js
 *  const processor = postcss([replace]);
 *  processor.plugins[0].postcssPlugin  //=> 'postcss-replace'
 *  processor.plugins[0].postcssVersion //=> '5.1.0'
 * ```
 *
 * The plugin function receives 2 arguments: {@link Root}
 * and {@link Result} instance. The function should mutate the provided
 * `Root` node. Alternatively, you can create a new `Root` node
 * and override the `result.root` property.
 *
 * ```js
 * const cleaner = postcss.plugin('postcss-cleaner', () => {
 *   return (root, result) => {
 *     result.root = postcss.root();
 *   };
 * });
 * ```
 *
 * As a convenience, plugins also expose a `process` method so that you can use
 * them as standalone tools.
 *
 * ```js
 * cleaner.process(css, options);
 * // This is equivalent to:
 * postcss([ cleaner(options) ]).process(css);
 * ```
 *
 * Asynchronous plugins should return a `Promise` instance.
 *
 * ```js
 * postcss.plugin('postcss-import', () => {
 *   return (root, result) => {
 *     return new Promise( (resolve, reject) => {
 *       fs.readFile('base.css', (base) => {
 *         root.prepend(base);
 *         resolve();
 *       });
 *     });
 *   };
 * });
 * ```
 *
 * Add warnings using the {@link Node#warn} method.
 * Send data to other plugins using the {@link Result#messages} array.
 *
 * ```js
 * postcss.plugin('postcss-caniuse-test', () => {
 *   return (root, result) => {
 *     css.walkDecls(decl => {
 *       if ( !caniuse.support(decl.prop) ) {
 *         decl.warn(result, 'Some browsers do not support ' + decl.prop);
 *       }
 *     });
 *   };
 * });
 * ```
 *
 * @param {string} name          - PostCSS plugin name. Same as in `name`
 *                                 property in `package.json`. It will be saved
 *                                 in `plugin.postcssPlugin` property.
 * @param {function} initializer - will receive plugin options
 *                                 and should return {@link pluginFunction}
 *
 * @return {Plugin} PostCSS plugin
 */
postcss.plugin = function plugin(name, initializer) {
  var creator = function creator() {
    var transformer = initializer.apply(undefined, arguments);
    transformer.postcssPlugin = name;
    transformer.postcssVersion = new _processor2.default().version;
    return transformer;
  };

  var cache = void 0;
  Object.defineProperty(creator, 'postcss', {
    get: function get() {
      if (!cache) cache = creator();
      return cache;
    }
  });

  creator.process = function (root, opts) {
    return postcss([creator(opts)]).process(root, opts);
  };

  return creator;
};

/**
 * Default function to convert a node tree into a CSS string.
 *
 * @param {Node} node       - start node for stringifing. Usually {@link Root}.
 * @param {builder} builder - function to concatenate CSS from node’s parts
 *                            or generate string and source map
 *
 * @return {void}
 *
 * @function
 */
postcss.stringify = _stringify2.default;

/**
 * Parses source css and returns a new {@link Root} node,
 * which contains the source CSS nodes.
 *
 * @param {string|toString} css   - string with input CSS or any object
 *                                  with toString() method, like a Buffer
 * @param {processOptions} [opts] - options with only `from` and `map` keys
 *
 * @return {Root} PostCSS AST
 *
 * @example
 * // Simple CSS concatenation with source map support
 * const root1 = postcss.parse(css1, { from: file1 });
 * const root2 = postcss.parse(css2, { from: file2 });
 * root1.append(root2).toResult().css;
 *
 * @function
 */
postcss.parse = _parse2.default;

/**
 * @member {vendor} - Contains the {@link vendor} module.
 *
 * @example
 * postcss.vendor.unprefixed('-moz-tab') //=> ['tab']
 */
postcss.vendor = _vendor2.default;

/**
 * @member {list} - Contains the {@link list} module.
 *
 * @example
 * postcss.list.space('5px calc(10% + 5px)') //=> ['5px', 'calc(10% + 5px)']
 */
postcss.list = _list2.default;

/**
 * Creates a new {@link Comment} node.
 *
 * @param {object} [defaults] - properties for the new node.
 *
 * @return {Comment} new Comment node
 *
 * @example
 * postcss.comment({ text: 'test' })
 */
postcss.comment = function (defaults) {
  return new _comment2.default(defaults);
};

/**
 * Creates a new {@link AtRule} node.
 *
 * @param {object} [defaults] - properties for the new node.
 *
 * @return {AtRule} new AtRule node
 *
 * @example
 * postcss.atRule({ name: 'charset' }).toString() //=> "@charset"
 */
postcss.atRule = function (defaults) {
  return new _atRule2.default(defaults);
};

/**
 * Creates a new {@link Declaration} node.
 *
 * @param {object} [defaults] - properties for the new node.
 *
 * @return {Declaration} new Declaration node
 *
 * @example
 * postcss.decl({ prop: 'color', value: 'red' }).toString() //=> "color: red"
 */
postcss.decl = function (defaults) {
  return new _declaration2.default(defaults);
};

/**
 * Creates a new {@link Rule} node.
 *
 * @param {object} [defaults] - properties for the new node.
 *
 * @return {AtRule} new Rule node
 *
 * @example
 * postcss.rule({ selector: 'a' }).toString() //=> "a {\n}"
 */
postcss.rule = function (defaults) {
  return new _rule2.default(defaults);
};

/**
 * Creates a new {@link Root} node.
 *
 * @param {object} [defaults] - properties for the new node.
 *
 * @return {Root} new Root node
 *
 * @example
 * postcss.root({ after: '\n' }).toString() //=> "\n"
 */
postcss.root = function (defaults) {
  return new _root2.default(defaults);
};

exports.default = postcss;
module.exports = exports['default'];


},{"./at-rule":135,"./comment":136,"./declaration":139,"./list":142,"./parse":145,"./processor":149,"./root":151,"./rule":152,"./stringify":154,"./vendor":157}],148:[function(require,module,exports){
'use strict';

exports.__esModule = true;

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

var _jsBase = require('js-base64');

var _sourceMap = require('source-map');

var _sourceMap2 = _interopRequireDefault(_sourceMap);

var _path = require('path');

var _path2 = _interopRequireDefault(_path);

var _fs = require('fs');

var _fs2 = _interopRequireDefault(_fs);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

/**
 * Source map information from input CSS.
 * For example, source map after Sass compiler.
 *
 * This class will automatically find source map in input CSS or in file system
 * near input file (according `from` option).
 *
 * @example
 * const root = postcss.parse(css, { from: 'a.sass.css' });
 * root.input.map //=> PreviousMap
 */
var PreviousMap = function () {

    /**
     * @param {string}         css    - input CSS source
     * @param {processOptions} [opts] - {@link Processor#process} options
     */
    function PreviousMap(css, opts) {
        _classCallCheck(this, PreviousMap);

        this.loadAnnotation(css);
        /**
         * @member {boolean} - Was source map inlined by data-uri to input CSS.
         */
        this.inline = this.startWith(this.annotation, 'data:');

        var prev = opts.map ? opts.map.prev : undefined;
        var text = this.loadMap(opts.from, prev);
        if (text) this.text = text;
    }

    /**
     * Create a instance of `SourceMapGenerator` class
     * from the `source-map` library to work with source map information.
     *
     * It is lazy method, so it will create object only on first call
     * and then it will use cache.
     *
     * @return {SourceMapGenerator} object with source map information
     */


    PreviousMap.prototype.consumer = function consumer() {
        if (!this.consumerCache) {
            this.consumerCache = new _sourceMap2.default.SourceMapConsumer(this.text);
        }
        return this.consumerCache;
    };

    /**
     * Does source map contains `sourcesContent` with input source text.
     *
     * @return {boolean} Is `sourcesContent` present
     */


    PreviousMap.prototype.withContent = function withContent() {
        return !!(this.consumer().sourcesContent && this.consumer().sourcesContent.length > 0);
    };

    PreviousMap.prototype.startWith = function startWith(string, start) {
        if (!string) return false;
        return string.substr(0, start.length) === start;
    };

    PreviousMap.prototype.loadAnnotation = function loadAnnotation(css) {
        var match = css.match(/\/\*\s*# sourceMappingURL=(.*)\s*\*\//);
        if (match) this.annotation = match[1].trim();
    };

    PreviousMap.prototype.decodeInline = function decodeInline(text) {
        var utfd64 = 'data:application/json;charset=utf-8;base64,';
        var utf64 = 'data:application/json;charset=utf8;base64,';
        var b64 = 'data:application/json;base64,';
        var uri = 'data:application/json,';

        if (this.startWith(text, uri)) {
            return decodeURIComponent(text.substr(uri.length));
        } else if (this.startWith(text, b64)) {
            return _jsBase.Base64.decode(text.substr(b64.length));
        } else if (this.startWith(text, utf64)) {
            return _jsBase.Base64.decode(text.substr(utf64.length));
        } else if (this.startWith(text, utfd64)) {
            return _jsBase.Base64.decode(text.substr(utfd64.length));
        } else {
            var encoding = text.match(/data:application\/json;([^,]+),/)[1];
            throw new Error('Unsupported source map encoding ' + encoding);
        }
    };

    PreviousMap.prototype.loadMap = function loadMap(file, prev) {
        if (prev === false) return false;

        if (prev) {
            if (typeof prev === 'string') {
                return prev;
            } else if (typeof prev === 'function') {
                var prevPath = prev(file);
                if (prevPath && _fs2.default.existsSync && _fs2.default.existsSync(prevPath)) {
                    return _fs2.default.readFileSync(prevPath, 'utf-8').toString().trim();
                } else {
                    throw new Error('Unable to load previous source map: ' + prevPath.toString());
                }
            } else if (prev instanceof _sourceMap2.default.SourceMapConsumer) {
                return _sourceMap2.default.SourceMapGenerator.fromSourceMap(prev).toString();
            } else if (prev instanceof _sourceMap2.default.SourceMapGenerator) {
                return prev.toString();
            } else if (this.isMap(prev)) {
                return JSON.stringify(prev);
            } else {
                throw new Error('Unsupported previous source map format: ' + prev.toString());
            }
        } else if (this.inline) {
            return this.decodeInline(this.annotation);
        } else if (this.annotation) {
            var map = this.annotation;
            if (file) map = _path2.default.join(_path2.default.dirname(file), map);

            this.root = _path2.default.dirname(map);
            if (_fs2.default.existsSync && _fs2.default.existsSync(map)) {
                return _fs2.default.readFileSync(map, 'utf-8').toString().trim();
            } else {
                return false;
            }
        }
    };

    PreviousMap.prototype.isMap = function isMap(map) {
        if ((typeof map === 'undefined' ? 'undefined' : _typeof(map)) !== 'object') return false;
        return typeof map.mappings === 'string' || typeof map._mappings === 'string';
    };

    return PreviousMap;
}();

exports.default = PreviousMap;
module.exports = exports['default'];


},{"fs":63,"js-base64":126,"path":129,"source-map":171}],149:[function(require,module,exports){
'use strict';

exports.__esModule = true;

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

var _lazyResult = require('./lazy-result');

var _lazyResult2 = _interopRequireDefault(_lazyResult);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

/**
 * Contains plugins to process CSS. Create one `Processor` instance,
 * initialize its plugins, and then use that instance on numerous CSS files.
 *
 * @example
 * const processor = postcss([autoprefixer, precss]);
 * processor.process(css1).then(result => console.log(result.css));
 * processor.process(css2).then(result => console.log(result.css));
 */
var Processor = function () {

  /**
   * @param {Array.<Plugin|pluginFunction>|Processor} plugins - PostCSS
   *        plugins. See {@link Processor#use} for plugin format.
   */
  function Processor() {
    var plugins = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];

    _classCallCheck(this, Processor);

    /**
     * @member {string} - Current PostCSS version.
     *
     * @example
     * if ( result.processor.version.split('.')[0] !== '5' ) {
     *   throw new Error('This plugin works only with PostCSS 5');
     * }
     */
    this.version = '5.2.5';
    /**
     * @member {pluginFunction[]} - Plugins added to this processor.
     *
     * @example
     * const processor = postcss([autoprefixer, precss]);
     * processor.plugins.length //=> 2
     */
    this.plugins = this.normalize(plugins);
  }

  /**
   * Adds a plugin to be used as a CSS processor.
   *
   * PostCSS plugin can be in 4 formats:
   * * A plugin created by {@link postcss.plugin} method.
   * * A function. PostCSS will pass the function a @{link Root}
   *   as the first argument and current {@link Result} instance
   *   as the second.
   * * An object with a `postcss` method. PostCSS will use that method
   *   as described in #2.
   * * Another {@link Processor} instance. PostCSS will copy plugins
   *   from that instance into this one.
   *
   * Plugins can also be added by passing them as arguments when creating
   * a `postcss` instance (see [`postcss(plugins)`]).
   *
   * Asynchronous plugins should return a `Promise` instance.
   *
   * @param {Plugin|pluginFunction|Processor} plugin - PostCSS plugin
   *                                                   or {@link Processor}
   *                                                   with plugins
   *
   * @example
   * const processor = postcss()
   *   .use(autoprefixer)
   *   .use(precss);
   *
   * @return {Processes} current processor to make methods chain
   */


  Processor.prototype.use = function use(plugin) {
    this.plugins = this.plugins.concat(this.normalize([plugin]));
    return this;
  };

  /**
   * Parses source CSS and returns a {@link LazyResult} Promise proxy.
   * Because some plugins can be asynchronous it doesn’t make
   * any transformations. Transformations will be applied
   * in the {@link LazyResult} methods.
   *
   * @param {string|toString|Result} css - String with input CSS or
   *                                       any object with a `toString()`
   *                                       method, like a Buffer.
   *                                       Optionally, send a {@link Result}
   *                                       instance and the processor will
   *                                       take the {@link Root} from it.
   * @param {processOptions} [opts]      - options
   *
   * @return {LazyResult} Promise proxy
   *
   * @example
   * processor.process(css, { from: 'a.css', to: 'a.out.css' })
   *   .then(result => {
   *      console.log(result.css);
   *   });
   */


  Processor.prototype.process = function process(css) {
    var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    return new _lazyResult2.default(this, css, opts);
  };

  Processor.prototype.normalize = function normalize(plugins) {
    var normalized = [];
    for (var _iterator = plugins, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
      var _ref;

      if (_isArray) {
        if (_i >= _iterator.length) break;
        _ref = _iterator[_i++];
      } else {
        _i = _iterator.next();
        if (_i.done) break;
        _ref = _i.value;
      }

      var i = _ref;

      if (i.postcss) i = i.postcss;

      if ((typeof i === 'undefined' ? 'undefined' : _typeof(i)) === 'object' && Array.isArray(i.plugins)) {
        normalized = normalized.concat(i.plugins);
      } else if (typeof i === 'function') {
        normalized.push(i);
      } else {
        throw new Error(i + ' is not a PostCSS plugin');
      }
    }
    return normalized;
  };

  return Processor;
}();

exports.default = Processor;

/**
 * @callback builder
 * @param {string} part          - part of generated CSS connected to this node
 * @param {Node}   node          - AST node
 * @param {"start"|"end"} [type] - node’s part type
 */

/**
 * @callback parser
 *
 * @param {string|toString} css   - string with input CSS or any object
 *                                  with toString() method, like a Buffer
 * @param {processOptions} [opts] - options with only `from` and `map` keys
 *
 * @return {Root} PostCSS AST
 */

/**
 * @callback stringifier
 *
 * @param {Node} node       - start node for stringifing. Usually {@link Root}.
 * @param {builder} builder - function to concatenate CSS from node’s parts
 *                            or generate string and source map
 *
 * @return {void}
 */

/**
 * @typedef {object} syntax
 * @property {parser} parse          - function to generate AST by string
 * @property {stringifier} stringify - function to generate string by AST
 */

/**
 * @typedef {object} toString
 * @property {function} toString
 */

/**
 * @callback pluginFunction
 * @param {Root} root     - parsed input CSS
 * @param {Result} result - result to set warnings or check other plugins
 */

/**
 * @typedef {object} Plugin
 * @property {function} postcss - PostCSS plugin function
 */

/**
 * @typedef {object} processOptions
 * @property {string} from             - the path of the CSS source file.
 *                                       You should always set `from`,
 *                                       because it is used in source map
 *                                       generation and syntax error messages.
 * @property {string} to               - the path where you’ll put the output
 *                                       CSS file. You should always set `to`
 *                                       to generate correct source maps.
 * @property {parser} parser           - function to generate AST by string
 * @property {stringifier} stringifier - class to generate string by AST
 * @property {syntax} syntax           - object with `parse` and `stringify`
 * @property {object} map              - source map options
 * @property {boolean} map.inline                    - does source map should
 *                                                     be embedded in the output
 *                                                     CSS as a base64-encoded
 *                                                     comment
 * @property {string|object|false|function} map.prev - source map content
 *                                                     from a previous
 *                                                     processing step
 *                                                     (for example, Sass).
 *                                                     PostCSS will try to find
 *                                                     previous map
 *                                                     automatically, so you
 *                                                     could disable it by
 *                                                     `false` value.
 * @property {boolean} map.sourcesContent            - does PostCSS should set
 *                                                     the origin content to map
 * @property {string|false} map.annotation           - does PostCSS should set
 *                                                     annotation comment to map
 * @property {string} map.from                       - override `from` in map’s
 *                                                     `sources`
 */

module.exports = exports['default'];


},{"./lazy-result":141}],150:[function(require,module,exports){
'use strict';

exports.__esModule = true;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _warning = require('./warning');

var _warning2 = _interopRequireDefault(_warning);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

/**
 * Provides the result of the PostCSS transformations.
 *
 * A Result instance is returned by {@link LazyResult#then}
 * or {@link Root#toResult} methods.
 *
 * @example
 * postcss([cssnext]).process(css).then(function (result) {
 *    console.log(result.css);
 * });
 *
 * @example
 * var result2 = postcss.parse(css).toResult();
 */
var Result = function () {

  /**
   * @param {Processor} processor - processor used for this transformation.
   * @param {Root}      root      - Root node after all transformations.
   * @param {processOptions} opts - options from the {@link Processor#process}
   *                                or {@link Root#toResult}
   */
  function Result(processor, root, opts) {
    _classCallCheck(this, Result);

    /**
     * @member {Processor} - The Processor instance used
     *                       for this transformation.
     *
     * @example
     * for ( let plugin of result.processor.plugins) {
     *   if ( plugin.postcssPlugin === 'postcss-bad' ) {
     *     throw 'postcss-good is incompatible with postcss-bad';
     *   }
     * });
     */
    this.processor = processor;
    /**
     * @member {Message[]} - Contains messages from plugins
     *                       (e.g., warnings or custom messages).
     *                       Each message should have type
     *                       and plugin properties.
     *
     * @example
     * postcss.plugin('postcss-min-browser', () => {
     *   return (root, result) => {
     *     var browsers = detectMinBrowsersByCanIUse(root);
     *     result.messages.push({
     *       type:    'min-browser',
     *       plugin:  'postcss-min-browser',
     *       browsers: browsers
     *     });
     *   };
     * });
     */
    this.messages = [];
    /**
     * @member {Root} - Root node after all transformations.
     *
     * @example
     * root.toResult().root == root;
     */
    this.root = root;
    /**
     * @member {processOptions} - Options from the {@link Processor#process}
     *                            or {@link Root#toResult} call
     *                            that produced this Result instance.
     *
     * @example
     * root.toResult(opts).opts == opts;
     */
    this.opts = opts;
    /**
     * @member {string} - A CSS string representing of {@link Result#root}.
     *
     * @example
     * postcss.parse('a{}').toResult().css //=> "a{}"
     */
    this.css = undefined;
    /**
     * @member {SourceMapGenerator} - An instance of `SourceMapGenerator`
     *                                class from the `source-map` library,
     *                                representing changes
     *                                to the {@link Result#root} instance.
     *
     * @example
     * result.map.toJSON() //=> { version: 3, file: 'a.css', … }
     *
     * @example
     * if ( result.map ) {
     *   fs.writeFileSync(result.opts.to + '.map', result.map.toString());
     * }
     */
    this.map = undefined;
  }

  /**
   * Returns for @{link Result#css} content.
   *
   * @example
   * result + '' === result.css
   *
   * @return {string} string representing of {@link Result#root}
   */


  Result.prototype.toString = function toString() {
    return this.css;
  };

  /**
   * Creates an instance of {@link Warning} and adds it
   * to {@link Result#messages}.
   *
   * @param {string} text        - warning message
   * @param {Object} [opts]      - warning options
   * @param {Node}   opts.node   - CSS node that caused the warning
   * @param {string} opts.word   - word in CSS source that caused the warning
   * @param {number} opts.index  - index in CSS node string that caused
   *                               the warning
   * @param {string} opts.plugin - name of the plugin that created
   *                               this warning. {@link Result#warn} fills
   *                               this property automatically.
   *
   * @return {Warning} created warning
   */


  Result.prototype.warn = function warn(text) {
    var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    if (!opts.plugin) {
      if (this.lastPlugin && this.lastPlugin.postcssPlugin) {
        opts.plugin = this.lastPlugin.postcssPlugin;
      }
    }

    var warning = new _warning2.default(text, opts);
    this.messages.push(warning);

    return warning;
  };

  /**
   * Returns warnings from plugins. Filters {@link Warning} instances
   * from {@link Result#messages}.
   *
   * @example
   * result.warnings().forEach(warn => {
   *   console.warn(warn.toString());
   * });
   *
   * @return {Warning[]} warnings from plugins
   */


  Result.prototype.warnings = function warnings() {
    return this.messages.filter(function (i) {
      return i.type === 'warning';
    });
  };

  /**
   * An alias for the {@link Result#css} property.
   * Use it with syntaxes that generate non-CSS output.
   * @type {string}
   *
   * @example
   * result.css === result.content;
   */


  _createClass(Result, [{
    key: 'content',
    get: function get() {
      return this.css;
    }
  }]);

  return Result;
}();

exports.default = Result;

/**
 * @typedef  {object} Message
 * @property {string} type   - message type
 * @property {string} plugin - source PostCSS plugin name
 */

module.exports = exports['default'];


},{"./warning":159}],151:[function(require,module,exports){
'use strict';

exports.__esModule = true;

var _container = require('./container');

var _container2 = _interopRequireDefault(_container);

var _warnOnce = require('./warn-once');

var _warnOnce2 = _interopRequireDefault(_warnOnce);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

/**
 * Represents a CSS file and contains all its parsed nodes.
 *
 * @extends Container
 *
 * @example
 * const root = postcss.parse('a{color:black} b{z-index:2}');
 * root.type         //=> 'root'
 * root.nodes.length //=> 2
 */
var Root = function (_Container) {
    _inherits(Root, _Container);

    function Root(defaults) {
        _classCallCheck(this, Root);

        var _this = _possibleConstructorReturn(this, _Container.call(this, defaults));

        _this.type = 'root';
        if (!_this.nodes) _this.nodes = [];
        return _this;
    }

    Root.prototype.removeChild = function removeChild(child) {
        child = this.index(child);

        if (child === 0 && this.nodes.length > 1) {
            this.nodes[1].raws.before = this.nodes[child].raws.before;
        }

        return _Container.prototype.removeChild.call(this, child);
    };

    Root.prototype.normalize = function normalize(child, sample, type) {
        var nodes = _Container.prototype.normalize.call(this, child);

        if (sample) {
            if (type === 'prepend') {
                if (this.nodes.length > 1) {
                    sample.raws.before = this.nodes[1].raws.before;
                } else {
                    delete sample.raws.before;
                }
            } else if (this.first !== sample) {
                for (var _iterator = nodes, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
                    var _ref;

                    if (_isArray) {
                        if (_i >= _iterator.length) break;
                        _ref = _iterator[_i++];
                    } else {
                        _i = _iterator.next();
                        if (_i.done) break;
                        _ref = _i.value;
                    }

                    var node = _ref;

                    node.raws.before = sample.raws.before;
                }
            }
        }

        return nodes;
    };

    /**
     * Returns a {@link Result} instance representing the root’s CSS.
     *
     * @param {processOptions} [opts] - options with only `to` and `map` keys
     *
     * @return {Result} result with current root’s CSS
     *
     * @example
     * const root1 = postcss.parse(css1, { from: 'a.css' });
     * const root2 = postcss.parse(css2, { from: 'b.css' });
     * root1.append(root2);
     * const result = root1.toResult({ to: 'all.css', map: true });
     */


    Root.prototype.toResult = function toResult() {
        var opts = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

        var LazyResult = require('./lazy-result');
        var Processor = require('./processor');

        var lazy = new LazyResult(new Processor(), this, opts);
        return lazy.stringify();
    };

    Root.prototype.remove = function remove(child) {
        (0, _warnOnce2.default)('Root#remove is deprecated. Use Root#removeChild');
        this.removeChild(child);
    };

    Root.prototype.prevMap = function prevMap() {
        (0, _warnOnce2.default)('Root#prevMap is deprecated. Use Root#source.input.map');
        return this.source.input.map;
    };

    /**
     * @memberof Root#
     * @member {object} raws - Information to generate byte-to-byte equal
     *                         node string as it was in the origin input.
     *
     * Every parser saves its own properties,
     * but the default CSS parser uses:
     *
     * * `after`: the space symbols after the last child to the end of file.
     * * `semicolon`: is the last child has an (optional) semicolon.
     *
     * @example
     * postcss.parse('a {}\n').raws //=> { after: '\n' }
     * postcss.parse('a {}').raws   //=> { after: '' }
     */

    return Root;
}(_container2.default);

exports.default = Root;
module.exports = exports['default'];


},{"./container":137,"./lazy-result":141,"./processor":149,"./warn-once":158}],152:[function(require,module,exports){
'use strict';

exports.__esModule = true;

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _container = require('./container');

var _container2 = _interopRequireDefault(_container);

var _warnOnce = require('./warn-once');

var _warnOnce2 = _interopRequireDefault(_warnOnce);

var _list = require('./list');

var _list2 = _interopRequireDefault(_list);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

/**
 * Represents a CSS rule: a selector followed by a declaration block.
 *
 * @extends Container
 *
 * @example
 * const root = postcss.parse('a{}');
 * const rule = root.first;
 * rule.type       //=> 'rule'
 * rule.toString() //=> 'a{}'
 */
var Rule = function (_Container) {
    _inherits(Rule, _Container);

    function Rule(defaults) {
        _classCallCheck(this, Rule);

        var _this = _possibleConstructorReturn(this, _Container.call(this, defaults));

        _this.type = 'rule';
        if (!_this.nodes) _this.nodes = [];
        return _this;
    }

    /**
     * An array containing the rule’s individual selectors.
     * Groups of selectors are split at commas.
     *
     * @type {string[]}
     *
     * @example
     * const root = postcss.parse('a, b { }');
     * const rule = root.first;
     *
     * rule.selector  //=> 'a, b'
     * rule.selectors //=> ['a', 'b']
     *
     * rule.selectors = ['a', 'strong'];
     * rule.selector //=> 'a, strong'
     */


    _createClass(Rule, [{
        key: 'selectors',
        get: function get() {
            return _list2.default.comma(this.selector);
        },
        set: function set(values) {
            var match = this.selector ? this.selector.match(/,\s*/) : null;
            var sep = match ? match[0] : ',' + this.raw('between', 'beforeOpen');
            this.selector = values.join(sep);
        }
    }, {
        key: '_selector',
        get: function get() {
            (0, _warnOnce2.default)('Rule#_selector is deprecated. Use Rule#raws.selector');
            return this.raws.selector;
        },
        set: function set(val) {
            (0, _warnOnce2.default)('Rule#_selector is deprecated. Use Rule#raws.selector');
            this.raws.selector = val;
        }

        /**
         * @memberof Rule#
         * @member {string} selector - the rule’s full selector represented
         *                             as a string
         *
         * @example
         * const root = postcss.parse('a, b { }');
         * const rule = root.first;
         * rule.selector //=> 'a, b'
         */

        /**
         * @memberof Rule#
         * @member {object} raws - Information to generate byte-to-byte equal
         *                         node string as it was in the origin input.
         *
         * Every parser saves its own properties,
         * but the default CSS parser uses:
         *
         * * `before`: the space symbols before the node. It also stores `*`
         *   and `_` symbols before the declaration (IE hack).
         * * `after`: the space symbols after the last child of the node
         *   to the end of the node.
         * * `between`: the symbols between the property and value
         *   for declarations, selector and `{` for rules, or last parameter
         *   and `{` for at-rules.
         * * `semicolon`: contains true if the last child has
         *   an (optional) semicolon.
         *
         * PostCSS cleans selectors from comments and extra spaces,
         * but it stores origin content in raws properties.
         * As such, if you don’t change a declaration’s value,
         * PostCSS will use the raw value with comments.
         *
         * @example
         * const root = postcss.parse('a {\n  color:black\n}')
         * root.first.first.raws //=> { before: '', between: ' ', after: '\n' }
         */

    }]);

    return Rule;
}(_container2.default);

exports.default = Rule;
module.exports = exports['default'];


},{"./container":137,"./list":142,"./warn-once":158}],153:[function(require,module,exports){
'use strict';

exports.__esModule = true;

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var defaultRaw = {
    colon: ': ',
    indent: '    ',
    beforeDecl: '\n',
    beforeRule: '\n',
    beforeOpen: ' ',
    beforeClose: '\n',
    beforeComment: '\n',
    after: '\n',
    emptyBody: '',
    commentLeft: ' ',
    commentRight: ' '
};

function capitalize(str) {
    return str[0].toUpperCase() + str.slice(1);
}

var Stringifier = function () {
    function Stringifier(builder) {
        _classCallCheck(this, Stringifier);

        this.builder = builder;
    }

    Stringifier.prototype.stringify = function stringify(node, semicolon) {
        this[node.type](node, semicolon);
    };

    Stringifier.prototype.root = function root(node) {
        this.body(node);
        if (node.raws.after) this.builder(node.raws.after);
    };

    Stringifier.prototype.comment = function comment(node) {
        var left = this.raw(node, 'left', 'commentLeft');
        var right = this.raw(node, 'right', 'commentRight');
        this.builder('/*' + left + node.text + right + '*/', node);
    };

    Stringifier.prototype.decl = function decl(node, semicolon) {
        var between = this.raw(node, 'between', 'colon');
        var string = node.prop + between + this.rawValue(node, 'value');

        if (node.important) {
            string += node.raws.important || ' !important';
        }

        if (semicolon) string += ';';
        this.builder(string, node);
    };

    Stringifier.prototype.rule = function rule(node) {
        this.block(node, this.rawValue(node, 'selector'));
    };

    Stringifier.prototype.atrule = function atrule(node, semicolon) {
        var name = '@' + node.name;
        var params = node.params ? this.rawValue(node, 'params') : '';

        if (typeof node.raws.afterName !== 'undefined') {
            name += node.raws.afterName;
        } else if (params) {
            name += ' ';
        }

        if (node.nodes) {
            this.block(node, name + params);
        } else {
            var end = (node.raws.between || '') + (semicolon ? ';' : '');
            this.builder(name + params + end, node);
        }
    };

    Stringifier.prototype.body = function body(node) {
        var last = node.nodes.length - 1;
        while (last > 0) {
            if (node.nodes[last].type !== 'comment') break;
            last -= 1;
        }

        var semicolon = this.raw(node, 'semicolon');
        for (var i = 0; i < node.nodes.length; i++) {
            var child = node.nodes[i];
            var before = this.raw(child, 'before');
            if (before) this.builder(before);
            this.stringify(child, last !== i || semicolon);
        }
    };

    Stringifier.prototype.block = function block(node, start) {
        var between = this.raw(node, 'between', 'beforeOpen');
        this.builder(start + between + '{', node, 'start');

        var after = void 0;
        if (node.nodes && node.nodes.length) {
            this.body(node);
            after = this.raw(node, 'after');
        } else {
            after = this.raw(node, 'after', 'emptyBody');
        }

        if (after) this.builder(after);
        this.builder('}', node, 'end');
    };

    Stringifier.prototype.raw = function raw(node, own, detect) {
        var value = void 0;
        if (!detect) detect = own;

        // Already had
        if (own) {
            value = node.raws[own];
            if (typeof value !== 'undefined') return value;
        }

        var parent = node.parent;

        // Hack for first rule in CSS
        if (detect === 'before') {
            if (!parent || parent.type === 'root' && parent.first === node) {
                return '';
            }
        }

        // Floating child without parent
        if (!parent) return defaultRaw[detect];

        // Detect style by other nodes
        var root = node.root();
        if (!root.rawCache) root.rawCache = {};
        if (typeof root.rawCache[detect] !== 'undefined') {
            return root.rawCache[detect];
        }

        if (detect === 'before' || detect === 'after') {
            return this.beforeAfter(node, detect);
        } else {
            var method = 'raw' + capitalize(detect);
            if (this[method]) {
                value = this[method](root, node);
            } else {
                root.walk(function (i) {
                    value = i.raws[own];
                    if (typeof value !== 'undefined') return false;
                });
            }
        }

        if (typeof value === 'undefined') value = defaultRaw[detect];

        root.rawCache[detect] = value;
        return value;
    };

    Stringifier.prototype.rawSemicolon = function rawSemicolon(root) {
        var value = void 0;
        root.walk(function (i) {
            if (i.nodes && i.nodes.length && i.last.type === 'decl') {
                value = i.raws.semicolon;
                if (typeof value !== 'undefined') return false;
            }
        });
        return value;
    };

    Stringifier.prototype.rawEmptyBody = function rawEmptyBody(root) {
        var value = void 0;
        root.walk(function (i) {
            if (i.nodes && i.nodes.length === 0) {
                value = i.raws.after;
                if (typeof value !== 'undefined') return false;
            }
        });
        return value;
    };

    Stringifier.prototype.rawIndent = function rawIndent(root) {
        if (root.raws.indent) return root.raws.indent;
        var value = void 0;
        root.walk(function (i) {
            var p = i.parent;
            if (p && p !== root && p.parent && p.parent === root) {
                if (typeof i.raws.before !== 'undefined') {
                    var parts = i.raws.before.split('\n');
                    value = parts[parts.length - 1];
                    value = value.replace(/[^\s]/g, '');
                    return false;
                }
            }
        });
        return value;
    };

    Stringifier.prototype.rawBeforeComment = function rawBeforeComment(root, node) {
        var value = void 0;
        root.walkComments(function (i) {
            if (typeof i.raws.before !== 'undefined') {
                value = i.raws.before;
                if (value.indexOf('\n') !== -1) {
                    value = value.replace(/[^\n]+$/, '');
                }
                return false;
            }
        });
        if (typeof value === 'undefined') {
            value = this.raw(node, null, 'beforeDecl');
        }
        return value;
    };

    Stringifier.prototype.rawBeforeDecl = function rawBeforeDecl(root, node) {
        var value = void 0;
        root.walkDecls(function (i) {
            if (typeof i.raws.before !== 'undefined') {
                value = i.raws.before;
                if (value.indexOf('\n') !== -1) {
                    value = value.replace(/[^\n]+$/, '');
                }
                return false;
            }
        });
        if (typeof value === 'undefined') {
            value = this.raw(node, null, 'beforeRule');
        }
        return value;
    };

    Stringifier.prototype.rawBeforeRule = function rawBeforeRule(root) {
        var value = void 0;
        root.walk(function (i) {
            if (i.nodes && (i.parent !== root || root.first !== i)) {
                if (typeof i.raws.before !== 'undefined') {
                    value = i.raws.before;
                    if (value.indexOf('\n') !== -1) {
                        value = value.replace(/[^\n]+$/, '');
                    }
                    return false;
                }
            }
        });
        return value;
    };

    Stringifier.prototype.rawBeforeClose = function rawBeforeClose(root) {
        var value = void 0;
        root.walk(function (i) {
            if (i.nodes && i.nodes.length > 0) {
                if (typeof i.raws.after !== 'undefined') {
                    value = i.raws.after;
                    if (value.indexOf('\n') !== -1) {
                        value = value.replace(/[^\n]+$/, '');
                    }
                    return false;
                }
            }
        });
        return value;
    };

    Stringifier.prototype.rawBeforeOpen = function rawBeforeOpen(root) {
        var value = void 0;
        root.walk(function (i) {
            if (i.type !== 'decl') {
                value = i.raws.between;
                if (typeof value !== 'undefined') return false;
            }
        });
        return value;
    };

    Stringifier.prototype.rawColon = function rawColon(root) {
        var value = void 0;
        root.walkDecls(function (i) {
            if (typeof i.raws.between !== 'undefined') {
                value = i.raws.between.replace(/[^\s:]/g, '');
                return false;
            }
        });
        return value;
    };

    Stringifier.prototype.beforeAfter = function beforeAfter(node, detect) {
        var value = void 0;
        if (node.type === 'decl') {
            value = this.raw(node, null, 'beforeDecl');
        } else if (node.type === 'comment') {
            value = this.raw(node, null, 'beforeComment');
        } else if (detect === 'before') {
            value = this.raw(node, null, 'beforeRule');
        } else {
            value = this.raw(node, null, 'beforeClose');
        }

        var buf = node.parent;
        var depth = 0;
        while (buf && buf.type !== 'root') {
            depth += 1;
            buf = buf.parent;
        }

        if (value.indexOf('\n') !== -1) {
            var indent = this.raw(node, null, 'indent');
            if (indent.length) {
                for (var step = 0; step < depth; step++) {
                    value += indent;
                }
            }
        }

        return value;
    };

    Stringifier.prototype.rawValue = function rawValue(node, prop) {
        var value = node[prop];
        var raw = node.raws[prop];
        if (raw && raw.value === value) {
            return raw.raw;
        } else {
            return value;
        }
    };

    return Stringifier;
}();

exports.default = Stringifier;
module.exports = exports['default'];


},{}],154:[function(require,module,exports){
'use strict';

exports.__esModule = true;
exports.default = stringify;

var _stringifier = require('./stringifier');

var _stringifier2 = _interopRequireDefault(_stringifier);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function stringify(node, builder) {
    var str = new _stringifier2.default(builder);
    str.stringify(node);
}
module.exports = exports['default'];


},{"./stringifier":153}],155:[function(require,module,exports){
'use strict';

exports.__esModule = true;

var _chalk = require('chalk');

var _chalk2 = _interopRequireDefault(_chalk);

var _tokenize = require('./tokenize');

var _tokenize2 = _interopRequireDefault(_tokenize);

var _input = require('./input');

var _input2 = _interopRequireDefault(_input);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var colors = new _chalk2.default.constructor({ enabled: true });

var HIGHLIGHT_THEME = {
    'brackets': colors.cyan,
    'at-word': colors.cyan,
    'call': colors.cyan,
    'comment': colors.gray,
    'string': colors.green,
    'class': colors.yellow,
    'hash': colors.magenta,
    '(': colors.cyan,
    ')': colors.cyan,
    '{': colors.yellow,
    '}': colors.yellow,
    '[': colors.yellow,
    ']': colors.yellow,
    ':': colors.yellow,
    ';': colors.yellow
};

function getTokenType(_ref, index, tokens) {
    var type = _ref[0];
    var value = _ref[1];

    if (type === 'word') {
        if (value[0] === '.') {
            return 'class';
        }
        if (value[0] === '#') {
            return 'hash';
        }
    }

    var nextToken = tokens[index + 1];
    if (nextToken && (nextToken[0] === 'brackets' || nextToken[0] === '(')) {
        return 'call';
    }

    return type;
}

function terminalHighlight(css) {
    var tokens = (0, _tokenize2.default)(new _input2.default(css), { ignoreErrors: true });
    return tokens.map(function (token, index) {
        var color = HIGHLIGHT_THEME[getTokenType(token, index, tokens)];
        if (color) {
            return token[1].split(/\r?\n/).map(function (i) {
                return color(i);
            }).join('\n');
        } else {
            return token[1];
        }
    }).join('');
}

exports.default = terminalHighlight;
module.exports = exports['default'];


},{"./input":140,"./tokenize":156,"chalk":120}],156:[function(require,module,exports){
'use strict';

exports.__esModule = true;
exports.default = tokenize;
var SINGLE_QUOTE = 39;
var DOUBLE_QUOTE = 34;
var BACKSLASH = 92;
var SLASH = 47;
var NEWLINE = 10;
var SPACE = 32;
var FEED = 12;
var TAB = 9;
var CR = 13;
var OPEN_SQUARE = 91;
var CLOSE_SQUARE = 93;
var OPEN_PARENTHESES = 40;
var CLOSE_PARENTHESES = 41;
var OPEN_CURLY = 123;
var CLOSE_CURLY = 125;
var SEMICOLON = 59;
var ASTERISK = 42;
var COLON = 58;
var AT = 64;

var RE_AT_END = /[ \n\t\r\f\{\(\)'"\\;/\[\]#]/g;
var RE_WORD_END = /[ \n\t\r\f\(\)\{\}:;@!'"\\\]\[#]|\/(?=\*)/g;
var RE_BAD_BRACKET = /.[\\\/\("'\n]/;

function tokenize(input) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    var tokens = [];
    var css = input.css.valueOf();

    var ignore = options.ignoreErrors;

    var code = void 0,
        next = void 0,
        quote = void 0,
        lines = void 0,
        last = void 0,
        content = void 0,
        escape = void 0,
        nextLine = void 0,
        nextOffset = void 0,
        escaped = void 0,
        escapePos = void 0,
        prev = void 0,
        n = void 0;

    var length = css.length;
    var offset = -1;
    var line = 1;
    var pos = 0;

    function unclosed(what) {
        throw input.error('Unclosed ' + what, line, pos - offset);
    }

    while (pos < length) {
        code = css.charCodeAt(pos);

        if (code === NEWLINE || code === FEED || code === CR && css.charCodeAt(pos + 1) !== NEWLINE) {
            offset = pos;
            line += 1;
        }

        switch (code) {
            case NEWLINE:
            case SPACE:
            case TAB:
            case CR:
            case FEED:
                next = pos;
                do {
                    next += 1;
                    code = css.charCodeAt(next);
                    if (code === NEWLINE) {
                        offset = next;
                        line += 1;
                    }
                } while (code === SPACE || code === NEWLINE || code === TAB || code === CR || code === FEED);

                tokens.push(['space', css.slice(pos, next)]);
                pos = next - 1;
                break;

            case OPEN_SQUARE:
                tokens.push(['[', '[', line, pos - offset]);
                break;

            case CLOSE_SQUARE:
                tokens.push([']', ']', line, pos - offset]);
                break;

            case OPEN_CURLY:
                tokens.push(['{', '{', line, pos - offset]);
                break;

            case CLOSE_CURLY:
                tokens.push(['}', '}', line, pos - offset]);
                break;

            case COLON:
                tokens.push([':', ':', line, pos - offset]);
                break;

            case SEMICOLON:
                tokens.push([';', ';', line, pos - offset]);
                break;

            case OPEN_PARENTHESES:
                prev = tokens.length ? tokens[tokens.length - 1][1] : '';
                n = css.charCodeAt(pos + 1);
                if (prev === 'url' && n !== SINGLE_QUOTE && n !== DOUBLE_QUOTE && n !== SPACE && n !== NEWLINE && n !== TAB && n !== FEED && n !== CR) {
                    next = pos;
                    do {
                        escaped = false;
                        next = css.indexOf(')', next + 1);
                        if (next === -1) {
                            if (ignore) {
                                next = pos;
                                break;
                            } else {
                                unclosed('bracket');
                            }
                        }
                        escapePos = next;
                        while (css.charCodeAt(escapePos - 1) === BACKSLASH) {
                            escapePos -= 1;
                            escaped = !escaped;
                        }
                    } while (escaped);

                    tokens.push(['brackets', css.slice(pos, next + 1), line, pos - offset, line, next - offset]);
                    pos = next;
                } else {
                    next = css.indexOf(')', pos + 1);
                    content = css.slice(pos, next + 1);

                    if (next === -1 || RE_BAD_BRACKET.test(content)) {
                        tokens.push(['(', '(', line, pos - offset]);
                    } else {
                        tokens.push(['brackets', content, line, pos - offset, line, next - offset]);
                        pos = next;
                    }
                }

                break;

            case CLOSE_PARENTHESES:
                tokens.push([')', ')', line, pos - offset]);
                break;

            case SINGLE_QUOTE:
            case DOUBLE_QUOTE:
                quote = code === SINGLE_QUOTE ? '\'' : '"';
                next = pos;
                do {
                    escaped = false;
                    next = css.indexOf(quote, next + 1);
                    if (next === -1) {
                        if (ignore) {
                            next = pos + 1;
                            break;
                        } else {
                            unclosed('string');
                        }
                    }
                    escapePos = next;
                    while (css.charCodeAt(escapePos - 1) === BACKSLASH) {
                        escapePos -= 1;
                        escaped = !escaped;
                    }
                } while (escaped);

                content = css.slice(pos, next + 1);
                lines = content.split('\n');
                last = lines.length - 1;

                if (last > 0) {
                    nextLine = line + last;
                    nextOffset = next - lines[last].length;
                } else {
                    nextLine = line;
                    nextOffset = offset;
                }

                tokens.push(['string', css.slice(pos, next + 1), line, pos - offset, nextLine, next - nextOffset]);

                offset = nextOffset;
                line = nextLine;
                pos = next;
                break;

            case AT:
                RE_AT_END.lastIndex = pos + 1;
                RE_AT_END.test(css);
                if (RE_AT_END.lastIndex === 0) {
                    next = css.length - 1;
                } else {
                    next = RE_AT_END.lastIndex - 2;
                }
                tokens.push(['at-word', css.slice(pos, next + 1), line, pos - offset, line, next - offset]);
                pos = next;
                break;

            case BACKSLASH:
                next = pos;
                escape = true;
                while (css.charCodeAt(next + 1) === BACKSLASH) {
                    next += 1;
                    escape = !escape;
                }
                code = css.charCodeAt(next + 1);
                if (escape && code !== SLASH && code !== SPACE && code !== NEWLINE && code !== TAB && code !== CR && code !== FEED) {
                    next += 1;
                }
                tokens.push(['word', css.slice(pos, next + 1), line, pos - offset, line, next - offset]);
                pos = next;
                break;

            default:
                if (code === SLASH && css.charCodeAt(pos + 1) === ASTERISK) {
                    next = css.indexOf('*/', pos + 2) + 1;
                    if (next === 0) {
                        if (ignore) {
                            next = css.length;
                        } else {
                            unclosed('comment');
                        }
                    }

                    content = css.slice(pos, next + 1);
                    lines = content.split('\n');
                    last = lines.length - 1;

                    if (last > 0) {
                        nextLine = line + last;
                        nextOffset = next - lines[last].length;
                    } else {
                        nextLine = line;
                        nextOffset = offset;
                    }

                    tokens.push(['comment', content, line, pos - offset, nextLine, next - nextOffset]);

                    offset = nextOffset;
                    line = nextLine;
                    pos = next;
                } else {
                    RE_WORD_END.lastIndex = pos + 1;
                    RE_WORD_END.test(css);
                    if (RE_WORD_END.lastIndex === 0) {
                        next = css.length - 1;
                    } else {
                        next = RE_WORD_END.lastIndex - 2;
                    }

                    tokens.push(['word', css.slice(pos, next + 1), line, pos - offset, line, next - offset]);
                    pos = next;
                }

                break;
        }

        pos++;
    }

    return tokens;
}
module.exports = exports['default'];


},{}],157:[function(require,module,exports){
'use strict';

exports.__esModule = true;
/**
 * Contains helpers for working with vendor prefixes.
 *
 * @example
 * const vendor = postcss.vendor;
 *
 * @namespace vendor
 */
var vendor = {

    /**
     * Returns the vendor prefix extracted from an input string.
     *
     * @param {string} prop - string with or without vendor prefix
     *
     * @return {string} vendor prefix or empty string
     *
     * @example
     * postcss.vendor.prefix('-moz-tab-size') //=> '-moz-'
     * postcss.vendor.prefix('tab-size')      //=> ''
     */
    prefix: function prefix(prop) {
        if (prop[0] === '-') {
            var sep = prop.indexOf('-', 1);
            return prop.substr(0, sep + 1);
        } else {
            return '';
        }
    },


    /**
     * Returns the input string stripped of its vendor prefix.
     *
     * @param {string} prop - string with or without vendor prefix
     *
     * @return {string} string name without vendor prefixes
     *
     * @example
     * postcss.vendor.unprefixed('-moz-tab-size') //=> 'tab-size'
     */
    unprefixed: function unprefixed(prop) {
        if (prop[0] === '-') {
            var sep = prop.indexOf('-', 1);
            return prop.substr(sep + 1);
        } else {
            return prop;
        }
    }
};

exports.default = vendor;
module.exports = exports['default'];


},{}],158:[function(require,module,exports){
'use strict';

exports.__esModule = true;
exports.default = warnOnce;
var printed = {};

function warnOnce(message) {
    if (printed[message]) return;
    printed[message] = true;

    if (typeof console !== 'undefined' && console.warn) console.warn(message);
}
module.exports = exports['default'];


},{}],159:[function(require,module,exports){
'use strict';

exports.__esModule = true;

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

/**
 * Represents a plugin’s warning. It can be created using {@link Node#warn}.
 *
 * @example
 * if ( decl.important ) {
 *     decl.warn(result, 'Avoid !important', { word: '!important' });
 * }
 */
var Warning = function () {

  /**
   * @param {string} text        - warning message
   * @param {Object} [opts]      - warning options
   * @param {Node}   opts.node   - CSS node that caused the warning
   * @param {string} opts.word   - word in CSS source that caused the warning
   * @param {number} opts.index  - index in CSS node string that caused
   *                               the warning
   * @param {string} opts.plugin - name of the plugin that created
   *                               this warning. {@link Result#warn} fills
   *                               this property automatically.
   */
  function Warning(text) {
    var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    _classCallCheck(this, Warning);

    /**
     * @member {string} - Type to filter warnings from
     *                    {@link Result#messages}. Always equal
     *                    to `"warning"`.
     *
     * @example
     * const nonWarning = result.messages.filter(i => i.type !== 'warning')
     */
    this.type = 'warning';
    /**
     * @member {string} - The warning message.
     *
     * @example
     * warning.text //=> 'Try to avoid !important'
     */
    this.text = text;

    if (opts.node && opts.node.source) {
      var pos = opts.node.positionBy(opts);
      /**
       * @member {number} - Line in the input file
       *                    with this warning’s source
       *
       * @example
       * warning.line //=> 5
       */
      this.line = pos.line;
      /**
       * @member {number} - Column in the input file
       *                    with this warning’s source.
       *
       * @example
       * warning.column //=> 6
       */
      this.column = pos.column;
    }

    for (var opt in opts) {
      this[opt] = opts[opt];
    }
  }

  /**
   * Returns a warning position and message.
   *
   * @example
   * warning.toString() //=> 'postcss-lint:a.css:10:14: Avoid !important'
   *
   * @return {string} warning position and message
   */


  Warning.prototype.toString = function toString() {
    if (this.node) {
      return this.node.error(this.text, {
        plugin: this.plugin,
        index: this.index,
        word: this.word
      }).message;
    } else if (this.plugin) {
      return this.plugin + ': ' + this.text;
    } else {
      return this.text;
    }
  };

  /**
   * @memberof Warning#
   * @member {string} plugin - The name of the plugin that created
   *                           it will fill this property automatically.
   *                           this warning. When you call {@link Node#warn}
   *
   * @example
   * warning.plugin //=> 'postcss-important'
   */

  /**
   * @memberof Warning#
   * @member {Node} node - Contains the CSS node that caused the warning.
   *
   * @example
   * warning.node.toString() //=> 'color: white !important'
   */

  return Warning;
}();

exports.default = Warning;
module.exports = exports['default'];


},{}],160:[function(require,module,exports){
// shim for using process in browser
var process = module.exports = {};

// cached from whatever global is present so that test runners that stub it
// don't break things.  But we need to wrap it in a try catch in case it is
// wrapped in strict mode code which doesn't define any globals.  It's inside a
// function because try/catches deoptimize in certain engines.

var cachedSetTimeout;
var cachedClearTimeout;

function defaultSetTimout() {
    throw new Error('setTimeout has not been defined');
}
function defaultClearTimeout () {
    throw new Error('clearTimeout has not been defined');
}
(function () {
    try {
        if (typeof setTimeout === 'function') {
            cachedSetTimeout = setTimeout;
        } else {
            cachedSetTimeout = defaultSetTimout;
        }
    } catch (e) {
        cachedSetTimeout = defaultSetTimout;
    }
    try {
        if (typeof clearTimeout === 'function') {
            cachedClearTimeout = clearTimeout;
        } else {
            cachedClearTimeout = defaultClearTimeout;
        }
    } catch (e) {
        cachedClearTimeout = defaultClearTimeout;
    }
} ())
function runTimeout(fun) {
    if (cachedSetTimeout === setTimeout) {
        //normal enviroments in sane situations
        return setTimeout(fun, 0);
    }
    // if setTimeout wasn't available but was latter defined
    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
        cachedSetTimeout = setTimeout;
        return setTimeout(fun, 0);
    }
    try {
        // when when somebody has screwed with setTimeout but no I.E. maddness
        return cachedSetTimeout(fun, 0);
    } catch(e){
        try {
            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
            return cachedSetTimeout.call(null, fun, 0);
        } catch(e){
            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
            return cachedSetTimeout.call(this, fun, 0);
        }
    }


}
function runClearTimeout(marker) {
    if (cachedClearTimeout === clearTimeout) {
        //normal enviroments in sane situations
        return clearTimeout(marker);
    }
    // if clearTimeout wasn't available but was latter defined
    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
        cachedClearTimeout = clearTimeout;
        return clearTimeout(marker);
    }
    try {
        // when when somebody has screwed with setTimeout but no I.E. maddness
        return cachedClearTimeout(marker);
    } catch (e){
        try {
            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
            return cachedClearTimeout.call(null, marker);
        } catch (e){
            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
            return cachedClearTimeout.call(this, marker);
        }
    }



}
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;

function cleanUpNextTick() {
    if (!draining || !currentQueue) {
        return;
    }
    draining = false;
    if (currentQueue.length) {
        queue = currentQueue.concat(queue);
    } else {
        queueIndex = -1;
    }
    if (queue.length) {
        drainQueue();
    }
}

function drainQueue() {
    if (draining) {
        return;
    }
    var timeout = runTimeout(cleanUpNextTick);
    draining = true;

    var len = queue.length;
    while(len) {
        currentQueue = queue;
        queue = [];
        while (++queueIndex < len) {
            if (currentQueue) {
                currentQueue[queueIndex].run();
            }
        }
        queueIndex = -1;
        len = queue.length;
    }
    currentQueue = null;
    draining = false;
    runClearTimeout(timeout);
}

process.nextTick = function (fun) {
    var args = new Array(arguments.length - 1);
    if (arguments.length > 1) {
        for (var i = 1; i < arguments.length; i++) {
            args[i - 1] = arguments[i];
        }
    }
    queue.push(new Item(fun, args));
    if (queue.length === 1 && !draining) {
        runTimeout(drainQueue);
    }
};

// v8 likes predictible objects
function Item(fun, array) {
    this.fun = fun;
    this.array = array;
}
Item.prototype.run = function () {
    this.fun.apply(null, this.array);
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};

function noop() {}

process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;

process.binding = function (name) {
    throw new Error('process.binding is not supported');
};

process.cwd = function () { return '/' };
process.chdir = function (dir) {
    throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };

},{}],161:[function(require,module,exports){
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

var util = require('./util');
var has = Object.prototype.hasOwnProperty;

/**
 * A data structure which is a combination of an array and a set. Adding a new
 * member is O(1), testing for membership is O(1), and finding the index of an
 * element is O(1). Removing elements from the set is not supported. Only
 * strings are supported for membership.
 */
function ArraySet() {
  this._array = [];
  this._set = Object.create(null);
}

/**
 * Static method for creating ArraySet instances from an existing array.
 */
ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) {
  var set = new ArraySet();
  for (var i = 0, len = aArray.length; i < len; i++) {
    set.add(aArray[i], aAllowDuplicates);
  }
  return set;
};

/**
 * Return how many unique items are in this ArraySet. If duplicates have been
 * added, than those do not count towards the size.
 *
 * @returns Number
 */
ArraySet.prototype.size = function ArraySet_size() {
  return Object.getOwnPropertyNames(this._set).length;
};

/**
 * Add the given string to this set.
 *
 * @param String aStr
 */
ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) {
  var sStr = util.toSetString(aStr);
  var isDuplicate = has.call(this._set, sStr);
  var idx = this._array.length;
  if (!isDuplicate || aAllowDuplicates) {
    this._array.push(aStr);
  }
  if (!isDuplicate) {
    this._set[sStr] = idx;
  }
};

/**
 * Is the given string a member of this set?
 *
 * @param String aStr
 */
ArraySet.prototype.has = function ArraySet_has(aStr) {
  var sStr = util.toSetString(aStr);
  return has.call(this._set, sStr);
};

/**
 * What is the index of the given string in the array?
 *
 * @param String aStr
 */
ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) {
  var sStr = util.toSetString(aStr);
  if (has.call(this._set, sStr)) {
    return this._set[sStr];
  }
  throw new Error('"' + aStr + '" is not in the set.');
};

/**
 * What is the element at the given index?
 *
 * @param Number aIdx
 */
ArraySet.prototype.at = function ArraySet_at(aIdx) {
  if (aIdx >= 0 && aIdx < this._array.length) {
    return this._array[aIdx];
  }
  throw new Error('No element indexed by ' + aIdx);
};

/**
 * Returns the array representation of this set (which has the proper indices
 * indicated by indexOf). Note that this is a copy of the internal array used
 * for storing the members so that no one can mess with internal state.
 */
ArraySet.prototype.toArray = function ArraySet_toArray() {
  return this._array.slice();
};

exports.ArraySet = ArraySet;

},{"./util":170}],162:[function(require,module,exports){
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 *
 * Based on the Base 64 VLQ implementation in Closure Compiler:
 * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java
 *
 * Copyright 2011 The Closure Compiler Authors. All rights reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above
 *    copyright notice, this list of conditions and the following
 *    disclaimer in the documentation and/or other materials provided
 *    with the distribution.
 *  * Neither the name of Google Inc. nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

var base64 = require('./base64');

// A single base 64 digit can contain 6 bits of data. For the base 64 variable
// length quantities we use in the source map spec, the first bit is the sign,
// the next four bits are the actual value, and the 6th bit is the
// continuation bit. The continuation bit tells us whether there are more
// digits in this value following this digit.
//
//   Continuation
//   |    Sign
//   |    |
//   V    V
//   101011

var VLQ_BASE_SHIFT = 5;

// binary: 100000
var VLQ_BASE = 1 << VLQ_BASE_SHIFT;

// binary: 011111
var VLQ_BASE_MASK = VLQ_BASE - 1;

// binary: 100000
var VLQ_CONTINUATION_BIT = VLQ_BASE;

/**
 * Converts from a two-complement value to a value where the sign bit is
 * placed in the least significant bit.  For example, as decimals:
 *   1 becomes 2 (10 binary), -1 becomes 3 (11 binary)
 *   2 becomes 4 (100 binary), -2 becomes 5 (101 binary)
 */
function toVLQSigned(aValue) {
  return aValue < 0
    ? ((-aValue) << 1) + 1
    : (aValue << 1) + 0;
}

/**
 * Converts to a two-complement value from a value where the sign bit is
 * placed in the least significant bit.  For example, as decimals:
 *   2 (10 binary) becomes 1, 3 (11 binary) becomes -1
 *   4 (100 binary) becomes 2, 5 (101 binary) becomes -2
 */
function fromVLQSigned(aValue) {
  var isNegative = (aValue & 1) === 1;
  var shifted = aValue >> 1;
  return isNegative
    ? -shifted
    : shifted;
}

/**
 * Returns the base 64 VLQ encoded value.
 */
exports.encode = function base64VLQ_encode(aValue) {
  var encoded = "";
  var digit;

  var vlq = toVLQSigned(aValue);

  do {
    digit = vlq & VLQ_BASE_MASK;
    vlq >>>= VLQ_BASE_SHIFT;
    if (vlq > 0) {
      // There are still more digits in this value, so we must make sure the
      // continuation bit is marked.
      digit |= VLQ_CONTINUATION_BIT;
    }
    encoded += base64.encode(digit);
  } while (vlq > 0);

  return encoded;
};

/**
 * Decodes the next base 64 VLQ value from the given string and returns the
 * value and the rest of the string via the out parameter.
 */
exports.decode = function base64VLQ_decode(aStr, aIndex, aOutParam) {
  var strLen = aStr.length;
  var result = 0;
  var shift = 0;
  var continuation, digit;

  do {
    if (aIndex >= strLen) {
      throw new Error("Expected more digits in base 64 VLQ value.");
    }

    digit = base64.decode(aStr.charCodeAt(aIndex++));
    if (digit === -1) {
      throw new Error("Invalid base64 digit: " + aStr.charAt(aIndex - 1));
    }

    continuation = !!(digit & VLQ_CONTINUATION_BIT);
    digit &= VLQ_BASE_MASK;
    result = result + (digit << shift);
    shift += VLQ_BASE_SHIFT;
  } while (continuation);

  aOutParam.value = fromVLQSigned(result);
  aOutParam.rest = aIndex;
};

},{"./base64":163}],163:[function(require,module,exports){
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

var intToCharMap = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'.split('');

/**
 * Encode an integer in the range of 0 to 63 to a single base 64 digit.
 */
exports.encode = function (number) {
  if (0 <= number && number < intToCharMap.length) {
    return intToCharMap[number];
  }
  throw new TypeError("Must be between 0 and 63: " + number);
};

/**
 * Decode a single base 64 character code digit to an integer. Returns -1 on
 * failure.
 */
exports.decode = function (charCode) {
  var bigA = 65;     // 'A'
  var bigZ = 90;     // 'Z'

  var littleA = 97;  // 'a'
  var littleZ = 122; // 'z'

  var zero = 48;     // '0'
  var nine = 57;     // '9'

  var plus = 43;     // '+'
  var slash = 47;    // '/'

  var littleOffset = 26;
  var numberOffset = 52;

  // 0 - 25: ABCDEFGHIJKLMNOPQRSTUVWXYZ
  if (bigA <= charCode && charCode <= bigZ) {
    return (charCode - bigA);
  }

  // 26 - 51: abcdefghijklmnopqrstuvwxyz
  if (littleA <= charCode && charCode <= littleZ) {
    return (charCode - littleA + littleOffset);
  }

  // 52 - 61: 0123456789
  if (zero <= charCode && charCode <= nine) {
    return (charCode - zero + numberOffset);
  }

  // 62: +
  if (charCode == plus) {
    return 62;
  }

  // 63: /
  if (charCode == slash) {
    return 63;
  }

  // Invalid base64 digit.
  return -1;
};

},{}],164:[function(require,module,exports){
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

exports.GREATEST_LOWER_BOUND = 1;
exports.LEAST_UPPER_BOUND = 2;

/**
 * Recursive implementation of binary search.
 *
 * @param aLow Indices here and lower do not contain the needle.
 * @param aHigh Indices here and higher do not contain the needle.
 * @param aNeedle The element being searched for.
 * @param aHaystack The non-empty array being searched.
 * @param aCompare Function which takes two elements and returns -1, 0, or 1.
 * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
 *     'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
 *     closest element that is smaller than or greater than the one we are
 *     searching for, respectively, if the exact element cannot be found.
 */
function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare, aBias) {
  // This function terminates when one of the following is true:
  //
  //   1. We find the exact element we are looking for.
  //
  //   2. We did not find the exact element, but we can return the index of
  //      the next-closest element.
  //
  //   3. We did not find the exact element, and there is no next-closest
  //      element than the one we are searching for, so we return -1.
  var mid = Math.floor((aHigh - aLow) / 2) + aLow;
  var cmp = aCompare(aNeedle, aHaystack[mid], true);
  if (cmp === 0) {
    // Found the element we are looking for.
    return mid;
  }
  else if (cmp > 0) {
    // Our needle is greater than aHaystack[mid].
    if (aHigh - mid > 1) {
      // The element is in the upper half.
      return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare, aBias);
    }

    // The exact needle element was not found in this haystack. Determine if
    // we are in termination case (3) or (2) and return the appropriate thing.
    if (aBias == exports.LEAST_UPPER_BOUND) {
      return aHigh < aHaystack.length ? aHigh : -1;
    } else {
      return mid;
    }
  }
  else {
    // Our needle is less than aHaystack[mid].
    if (mid - aLow > 1) {
      // The element is in the lower half.
      return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare, aBias);
    }

    // we are in termination case (3) or (2) and return the appropriate thing.
    if (aBias == exports.LEAST_UPPER_BOUND) {
      return mid;
    } else {
      return aLow < 0 ? -1 : aLow;
    }
  }
}

/**
 * This is an implementation of binary search which will always try and return
 * the index of the closest element if there is no exact hit. This is because
 * mappings between original and generated line/col pairs are single points,
 * and there is an implicit region between each of them, so a miss just means
 * that you aren't on the very start of a region.
 *
 * @param aNeedle The element you are looking for.
 * @param aHaystack The array that is being searched.
 * @param aCompare A function which takes the needle and an element in the
 *     array and returns -1, 0, or 1 depending on whether the needle is less
 *     than, equal to, or greater than the element, respectively.
 * @param aBias Either 'binarySearch.GREATEST_LOWER_BOUND' or
 *     'binarySearch.LEAST_UPPER_BOUND'. Specifies whether to return the
 *     closest element that is smaller than or greater than the one we are
 *     searching for, respectively, if the exact element cannot be found.
 *     Defaults to 'binarySearch.GREATEST_LOWER_BOUND'.
 */
exports.search = function search(aNeedle, aHaystack, aCompare, aBias) {
  if (aHaystack.length === 0) {
    return -1;
  }

  var index = recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack,
                              aCompare, aBias || exports.GREATEST_LOWER_BOUND);
  if (index < 0) {
    return -1;
  }

  // We have found either the exact element, or the next-closest element than
  // the one we are searching for. However, there may be more than one such
  // element. Make sure we always return the smallest of these.
  while (index - 1 >= 0) {
    if (aCompare(aHaystack[index], aHaystack[index - 1], true) !== 0) {
      break;
    }
    --index;
  }

  return index;
};

},{}],165:[function(require,module,exports){
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2014 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

var util = require('./util');

/**
 * Determine whether mappingB is after mappingA with respect to generated
 * position.
 */
function generatedPositionAfter(mappingA, mappingB) {
  // Optimized for most common case
  var lineA = mappingA.generatedLine;
  var lineB = mappingB.generatedLine;
  var columnA = mappingA.generatedColumn;
  var columnB = mappingB.generatedColumn;
  return lineB > lineA || lineB == lineA && columnB >= columnA ||
         util.compareByGeneratedPositionsInflated(mappingA, mappingB) <= 0;
}

/**
 * A data structure to provide a sorted view of accumulated mappings in a
 * performance conscious manner. It trades a neglibable overhead in general
 * case for a large speedup in case of mappings being added in order.
 */
function MappingList() {
  this._array = [];
  this._sorted = true;
  // Serves as infimum
  this._last = {generatedLine: -1, generatedColumn: 0};
}

/**
 * Iterate through internal items. This method takes the same arguments that
 * `Array.prototype.forEach` takes.
 *
 * NOTE: The order of the mappings is NOT guaranteed.
 */
MappingList.prototype.unsortedForEach =
  function MappingList_forEach(aCallback, aThisArg) {
    this._array.forEach(aCallback, aThisArg);
  };

/**
 * Add the given source mapping.
 *
 * @param Object aMapping
 */
MappingList.prototype.add = function MappingList_add(aMapping) {
  if (generatedPositionAfter(this._last, aMapping)) {
    this._last = aMapping;
    this._array.push(aMapping);
  } else {
    this._sorted = false;
    this._array.push(aMapping);
  }
};

/**
 * Returns the flat, sorted array of mappings. The mappings are sorted by
 * generated position.
 *
 * WARNING: This method returns internal data without copying, for
 * performance. The return value must NOT be mutated, and should be treated as
 * an immutable borrow. If you want to take ownership, you must make your own
 * copy.
 */
MappingList.prototype.toArray = function MappingList_toArray() {
  if (!this._sorted) {
    this._array.sort(util.compareByGeneratedPositionsInflated);
    this._sorted = true;
  }
  return this._array;
};

exports.MappingList = MappingList;

},{"./util":170}],166:[function(require,module,exports){
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

// It turns out that some (most?) JavaScript engines don't self-host
// `Array.prototype.sort`. This makes sense because C++ will likely remain
// faster than JS when doing raw CPU-intensive sorting. However, when using a
// custom comparator function, calling back and forth between the VM's C++ and
// JIT'd JS is rather slow *and* loses JIT type information, resulting in
// worse generated code for the comparator function than would be optimal. In
// fact, when sorting with a comparator, these costs outweigh the benefits of
// sorting in C++. By using our own JS-implemented Quick Sort (below), we get
// a ~3500ms mean speed-up in `bench/bench.html`.

/**
 * Swap the elements indexed by `x` and `y` in the array `ary`.
 *
 * @param {Array} ary
 *        The array.
 * @param {Number} x
 *        The index of the first item.
 * @param {Number} y
 *        The index of the second item.
 */
function swap(ary, x, y) {
  var temp = ary[x];
  ary[x] = ary[y];
  ary[y] = temp;
}

/**
 * Returns a random integer within the range `low .. high` inclusive.
 *
 * @param {Number} low
 *        The lower bound on the range.
 * @param {Number} high
 *        The upper bound on the range.
 */
function randomIntInRange(low, high) {
  return Math.round(low + (Math.random() * (high - low)));
}

/**
 * The Quick Sort algorithm.
 *
 * @param {Array} ary
 *        An array to sort.
 * @param {function} comparator
 *        Function to use to compare two items.
 * @param {Number} p
 *        Start index of the array
 * @param {Number} r
 *        End index of the array
 */
function doQuickSort(ary, comparator, p, r) {
  // If our lower bound is less than our upper bound, we (1) partition the
  // array into two pieces and (2) recurse on each half. If it is not, this is
  // the empty array and our base case.

  if (p < r) {
    // (1) Partitioning.
    //
    // The partitioning chooses a pivot between `p` and `r` and moves all
    // elements that are less than or equal to the pivot to the before it, and
    // all the elements that are greater than it after it. The effect is that
    // once partition is done, the pivot is in the exact place it will be when
    // the array is put in sorted order, and it will not need to be moved
    // again. This runs in O(n) time.

    // Always choose a random pivot so that an input array which is reverse
    // sorted does not cause O(n^2) running time.
    var pivotIndex = randomIntInRange(p, r);
    var i = p - 1;

    swap(ary, pivotIndex, r);
    var pivot = ary[r];

    // Immediately after `j` is incremented in this loop, the following hold
    // true:
    //
    //   * Every element in `ary[p .. i]` is less than or equal to the pivot.
    //
    //   * Every element in `ary[i+1 .. j-1]` is greater than the pivot.
    for (var j = p; j < r; j++) {
      if (comparator(ary[j], pivot) <= 0) {
        i += 1;
        swap(ary, i, j);
      }
    }

    swap(ary, i + 1, j);
    var q = i + 1;

    // (2) Recurse on each half.

    doQuickSort(ary, comparator, p, q - 1);
    doQuickSort(ary, comparator, q + 1, r);
  }
}

/**
 * Sort the given array in-place with the given comparator function.
 *
 * @param {Array} ary
 *        An array to sort.
 * @param {function} comparator
 *        Function to use to compare two items.
 */
exports.quickSort = function (ary, comparator) {
  doQuickSort(ary, comparator, 0, ary.length - 1);
};

},{}],167:[function(require,module,exports){
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

var util = require('./util');
var binarySearch = require('./binary-search');
var ArraySet = require('./array-set').ArraySet;
var base64VLQ = require('./base64-vlq');
var quickSort = require('./quick-sort').quickSort;

function SourceMapConsumer(aSourceMap) {
  var sourceMap = aSourceMap;
  if (typeof aSourceMap === 'string') {
    sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, ''));
  }

  return sourceMap.sections != null
    ? new IndexedSourceMapConsumer(sourceMap)
    : new BasicSourceMapConsumer(sourceMap);
}

SourceMapConsumer.fromSourceMap = function(aSourceMap) {
  return BasicSourceMapConsumer.fromSourceMap(aSourceMap);
}

/**
 * The version of the source mapping spec that we are consuming.
 */
SourceMapConsumer.prototype._version = 3;

// `__generatedMappings` and `__originalMappings` are arrays that hold the
// parsed mapping coordinates from the source map's "mappings" attribute. They
// are lazily instantiated, accessed via the `_generatedMappings` and
// `_originalMappings` getters respectively, and we only parse the mappings
// and create these arrays once queried for a source location. We jump through
// these hoops because there can be many thousands of mappings, and parsing
// them is expensive, so we only want to do it if we must.
//
// Each object in the arrays is of the form:
//
//     {
//       generatedLine: The line number in the generated code,
//       generatedColumn: The column number in the generated code,
//       source: The path to the original source file that generated this
//               chunk of code,
//       originalLine: The line number in the original source that
//                     corresponds to this chunk of generated code,
//       originalColumn: The column number in the original source that
//                       corresponds to this chunk of generated code,
//       name: The name of the original symbol which generated this chunk of
//             code.
//     }
//
// All properties except for `generatedLine` and `generatedColumn` can be
// `null`.
//
// `_generatedMappings` is ordered by the generated positions.
//
// `_originalMappings` is ordered by the original positions.

SourceMapConsumer.prototype.__generatedMappings = null;
Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', {
  get: function () {
    if (!this.__generatedMappings) {
      this._parseMappings(this._mappings, this.sourceRoot);
    }

    return this.__generatedMappings;
  }
});

SourceMapConsumer.prototype.__originalMappings = null;
Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', {
  get: function () {
    if (!this.__originalMappings) {
      this._parseMappings(this._mappings, this.sourceRoot);
    }

    return this.__originalMappings;
  }
});

SourceMapConsumer.prototype._charIsMappingSeparator =
  function SourceMapConsumer_charIsMappingSeparator(aStr, index) {
    var c = aStr.charAt(index);
    return c === ";" || c === ",";
  };

/**
 * Parse the mappings in a string in to a data structure which we can easily
 * query (the ordered arrays in the `this.__generatedMappings` and
 * `this.__originalMappings` properties).
 */
SourceMapConsumer.prototype._parseMappings =
  function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
    throw new Error("Subclasses must implement _parseMappings");
  };

SourceMapConsumer.GENERATED_ORDER = 1;
SourceMapConsumer.ORIGINAL_ORDER = 2;

SourceMapConsumer.GREATEST_LOWER_BOUND = 1;
SourceMapConsumer.LEAST_UPPER_BOUND = 2;

/**
 * Iterate over each mapping between an original source/line/column and a
 * generated line/column in this source map.
 *
 * @param Function aCallback
 *        The function that is called with each mapping.
 * @param Object aContext
 *        Optional. If specified, this object will be the value of `this` every
 *        time that `aCallback` is called.
 * @param aOrder
 *        Either `SourceMapConsumer.GENERATED_ORDER` or
 *        `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to
 *        iterate over the mappings sorted by the generated file's line/column
 *        order or the original's source/line/column order, respectively. Defaults to
 *        `SourceMapConsumer.GENERATED_ORDER`.
 */
SourceMapConsumer.prototype.eachMapping =
  function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) {
    var context = aContext || null;
    var order = aOrder || SourceMapConsumer.GENERATED_ORDER;

    var mappings;
    switch (order) {
    case SourceMapConsumer.GENERATED_ORDER:
      mappings = this._generatedMappings;
      break;
    case SourceMapConsumer.ORIGINAL_ORDER:
      mappings = this._originalMappings;
      break;
    default:
      throw new Error("Unknown order of iteration.");
    }

    var sourceRoot = this.sourceRoot;
    mappings.map(function (mapping) {
      var source = mapping.source === null ? null : this._sources.at(mapping.source);
      if (source != null && sourceRoot != null) {
        source = util.join(sourceRoot, source);
      }
      return {
        source: source,
        generatedLine: mapping.generatedLine,
        generatedColumn: mapping.generatedColumn,
        originalLine: mapping.originalLine,
        originalColumn: mapping.originalColumn,
        name: mapping.name === null ? null : this._names.at(mapping.name)
      };
    }, this).forEach(aCallback, context);
  };

/**
 * Returns all generated line and column information for the original source,
 * line, and column provided. If no column is provided, returns all mappings
 * corresponding to a either the line we are searching for or the next
 * closest line that has any mappings. Otherwise, returns all mappings
 * corresponding to the given line and either the column we are searching for
 * or the next closest column that has any offsets.
 *
 * The only argument is an object with the following properties:
 *
 *   - source: The filename of the original source.
 *   - line: The line number in the original source.
 *   - column: Optional. the column number in the original source.
 *
 * and an array of objects is returned, each with the following properties:
 *
 *   - line: The line number in the generated source, or null.
 *   - column: The column number in the generated source, or null.
 */
SourceMapConsumer.prototype.allGeneratedPositionsFor =
  function SourceMapConsumer_allGeneratedPositionsFor(aArgs) {
    var line = util.getArg(aArgs, 'line');

    // When there is no exact match, BasicSourceMapConsumer.prototype._findMapping
    // returns the index of the closest mapping less than the needle. By
    // setting needle.originalColumn to 0, we thus find the last mapping for
    // the given line, provided such a mapping exists.
    var needle = {
      source: util.getArg(aArgs, 'source'),
      originalLine: line,
      originalColumn: util.getArg(aArgs, 'column', 0)
    };

    if (this.sourceRoot != null) {
      needle.source = util.relative(this.sourceRoot, needle.source);
    }
    if (!this._sources.has(needle.source)) {
      return [];
    }
    needle.source = this._sources.indexOf(needle.source);

    var mappings = [];

    var index = this._findMapping(needle,
                                  this._originalMappings,
                                  "originalLine",
                                  "originalColumn",
                                  util.compareByOriginalPositions,
                                  binarySearch.LEAST_UPPER_BOUND);
    if (index >= 0) {
      var mapping = this._originalMappings[index];

      if (aArgs.column === undefined) {
        var originalLine = mapping.originalLine;

        // Iterate until either we run out of mappings, or we run into
        // a mapping for a different line than the one we found. Since
        // mappings are sorted, this is guaranteed to find all mappings for
        // the line we found.
        while (mapping && mapping.originalLine === originalLine) {
          mappings.push({
            line: util.getArg(mapping, 'generatedLine', null),
            column: util.getArg(mapping, 'generatedColumn', null),
            lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
          });

          mapping = this._originalMappings[++index];
        }
      } else {
        var originalColumn = mapping.originalColumn;

        // Iterate until either we run out of mappings, or we run into
        // a mapping for a different line than the one we were searching for.
        // Since mappings are sorted, this is guaranteed to find all mappings for
        // the line we are searching for.
        while (mapping &&
               mapping.originalLine === line &&
               mapping.originalColumn == originalColumn) {
          mappings.push({
            line: util.getArg(mapping, 'generatedLine', null),
            column: util.getArg(mapping, 'generatedColumn', null),
            lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
          });

          mapping = this._originalMappings[++index];
        }
      }
    }

    return mappings;
  };

exports.SourceMapConsumer = SourceMapConsumer;

/**
 * A BasicSourceMapConsumer instance represents a parsed source map which we can
 * query for information about the original file positions by giving it a file
 * position in the generated source.
 *
 * The only parameter is the raw source map (either as a JSON string, or
 * already parsed to an object). According to the spec, source maps have the
 * following attributes:
 *
 *   - version: Which version of the source map spec this map is following.
 *   - sources: An array of URLs to the original source files.
 *   - names: An array of identifiers which can be referrenced by individual mappings.
 *   - sourceRoot: Optional. The URL root from which all sources are relative.
 *   - sourcesContent: Optional. An array of contents of the original source files.
 *   - mappings: A string of base64 VLQs which contain the actual mappings.
 *   - file: Optional. The generated file this source map is associated with.
 *
 * Here is an example source map, taken from the source map spec[0]:
 *
 *     {
 *       version : 3,
 *       file: "out.js",
 *       sourceRoot : "",
 *       sources: ["foo.js", "bar.js"],
 *       names: ["src", "maps", "are", "fun"],
 *       mappings: "AA,AB;;ABCDE;"
 *     }
 *
 * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1#
 */
function BasicSourceMapConsumer(aSourceMap) {
  var sourceMap = aSourceMap;
  if (typeof aSourceMap === 'string') {
    sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, ''));
  }

  var version = util.getArg(sourceMap, 'version');
  var sources = util.getArg(sourceMap, 'sources');
  // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which
  // requires the array) to play nice here.
  var names = util.getArg(sourceMap, 'names', []);
  var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null);
  var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null);
  var mappings = util.getArg(sourceMap, 'mappings');
  var file = util.getArg(sourceMap, 'file', null);

  // Once again, Sass deviates from the spec and supplies the version as a
  // string rather than a number, so we use loose equality checking here.
  if (version != this._version) {
    throw new Error('Unsupported version: ' + version);
  }

  sources = sources
    .map(String)
    // Some source maps produce relative source paths like "./foo.js" instead of
    // "foo.js".  Normalize these first so that future comparisons will succeed.
    // See bugzil.la/1090768.
    .map(util.normalize)
    // Always ensure that absolute sources are internally stored relative to
    // the source root, if the source root is absolute. Not doing this would
    // be particularly problematic when the source root is a prefix of the
    // source (valid, but why??). See github issue #199 and bugzil.la/1188982.
    .map(function (source) {
      return sourceRoot && util.isAbsolute(sourceRoot) && util.isAbsolute(source)
        ? util.relative(sourceRoot, source)
        : source;
    });

  // Pass `true` below to allow duplicate names and sources. While source maps
  // are intended to be compressed and deduplicated, the TypeScript compiler
  // sometimes generates source maps with duplicates in them. See Github issue
  // #72 and bugzil.la/889492.
  this._names = ArraySet.fromArray(names.map(String), true);
  this._sources = ArraySet.fromArray(sources, true);

  this.sourceRoot = sourceRoot;
  this.sourcesContent = sourcesContent;
  this._mappings = mappings;
  this.file = file;
}

BasicSourceMapConsumer.prototype = Object.create(SourceMapConsumer.prototype);
BasicSourceMapConsumer.prototype.consumer = SourceMapConsumer;

/**
 * Create a BasicSourceMapConsumer from a SourceMapGenerator.
 *
 * @param SourceMapGenerator aSourceMap
 *        The source map that will be consumed.
 * @returns BasicSourceMapConsumer
 */
BasicSourceMapConsumer.fromSourceMap =
  function SourceMapConsumer_fromSourceMap(aSourceMap) {
    var smc = Object.create(BasicSourceMapConsumer.prototype);

    var names = smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true);
    var sources = smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true);
    smc.sourceRoot = aSourceMap._sourceRoot;
    smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(),
                                                            smc.sourceRoot);
    smc.file = aSourceMap._file;

    // Because we are modifying the entries (by converting string sources and
    // names to indices into the sources and names ArraySets), we have to make
    // a copy of the entry or else bad things happen. Shared mutable state
    // strikes again! See github issue #191.

    var generatedMappings = aSourceMap._mappings.toArray().slice();
    var destGeneratedMappings = smc.__generatedMappings = [];
    var destOriginalMappings = smc.__originalMappings = [];

    for (var i = 0, length = generatedMappings.length; i < length; i++) {
      var srcMapping = generatedMappings[i];
      var destMapping = new Mapping;
      destMapping.generatedLine = srcMapping.generatedLine;
      destMapping.generatedColumn = srcMapping.generatedColumn;

      if (srcMapping.source) {
        destMapping.source = sources.indexOf(srcMapping.source);
        destMapping.originalLine = srcMapping.originalLine;
        destMapping.originalColumn = srcMapping.originalColumn;

        if (srcMapping.name) {
          destMapping.name = names.indexOf(srcMapping.name);
        }

        destOriginalMappings.push(destMapping);
      }

      destGeneratedMappings.push(destMapping);
    }

    quickSort(smc.__originalMappings, util.compareByOriginalPositions);

    return smc;
  };

/**
 * The version of the source mapping spec that we are consuming.
 */
BasicSourceMapConsumer.prototype._version = 3;

/**
 * The list of original sources.
 */
Object.defineProperty(BasicSourceMapConsumer.prototype, 'sources', {
  get: function () {
    return this._sources.toArray().map(function (s) {
      return this.sourceRoot != null ? util.join(this.sourceRoot, s) : s;
    }, this);
  }
});

/**
 * Provide the JIT with a nice shape / hidden class.
 */
function Mapping() {
  this.generatedLine = 0;
  this.generatedColumn = 0;
  this.source = null;
  this.originalLine = null;
  this.originalColumn = null;
  this.name = null;
}

/**
 * Parse the mappings in a string in to a data structure which we can easily
 * query (the ordered arrays in the `this.__generatedMappings` and
 * `this.__originalMappings` properties).
 */
BasicSourceMapConsumer.prototype._parseMappings =
  function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
    var generatedLine = 1;
    var previousGeneratedColumn = 0;
    var previousOriginalLine = 0;
    var previousOriginalColumn = 0;
    var previousSource = 0;
    var previousName = 0;
    var length = aStr.length;
    var index = 0;
    var cachedSegments = {};
    var temp = {};
    var originalMappings = [];
    var generatedMappings = [];
    var mapping, str, segment, end, value;

    while (index < length) {
      if (aStr.charAt(index) === ';') {
        generatedLine++;
        index++;
        previousGeneratedColumn = 0;
      }
      else if (aStr.charAt(index) === ',') {
        index++;
      }
      else {
        mapping = new Mapping();
        mapping.generatedLine = generatedLine;

        // Because each offset is encoded relative to the previous one,
        // many segments often have the same encoding. We can exploit this
        // fact by caching the parsed variable length fields of each segment,
        // allowing us to avoid a second parse if we encounter the same
        // segment again.
        for (end = index; end < length; end++) {
          if (this._charIsMappingSeparator(aStr, end)) {
            break;
          }
        }
        str = aStr.slice(index, end);

        segment = cachedSegments[str];
        if (segment) {
          index += str.length;
        } else {
          segment = [];
          while (index < end) {
            base64VLQ.decode(aStr, index, temp);
            value = temp.value;
            index = temp.rest;
            segment.push(value);
          }

          if (segment.length === 2) {
            throw new Error('Found a source, but no line and column');
          }

          if (segment.length === 3) {
            throw new Error('Found a source and line, but no column');
          }

          cachedSegments[str] = segment;
        }

        // Generated column.
        mapping.generatedColumn = previousGeneratedColumn + segment[0];
        previousGeneratedColumn = mapping.generatedColumn;

        if (segment.length > 1) {
          // Original source.
          mapping.source = previousSource + segment[1];
          previousSource += segment[1];

          // Original line.
          mapping.originalLine = previousOriginalLine + segment[2];
          previousOriginalLine = mapping.originalLine;
          // Lines are stored 0-based
          mapping.originalLine += 1;

          // Original column.
          mapping.originalColumn = previousOriginalColumn + segment[3];
          previousOriginalColumn = mapping.originalColumn;

          if (segment.length > 4) {
            // Original name.
            mapping.name = previousName + segment[4];
            previousName += segment[4];
          }
        }

        generatedMappings.push(mapping);
        if (typeof mapping.originalLine === 'number') {
          originalMappings.push(mapping);
        }
      }
    }

    quickSort(generatedMappings, util.compareByGeneratedPositionsDeflated);
    this.__generatedMappings = generatedMappings;

    quickSort(originalMappings, util.compareByOriginalPositions);
    this.__originalMappings = originalMappings;
  };

/**
 * Find the mapping that best matches the hypothetical "needle" mapping that
 * we are searching for in the given "haystack" of mappings.
 */
BasicSourceMapConsumer.prototype._findMapping =
  function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName,
                                         aColumnName, aComparator, aBias) {
    // To return the position we are searching for, we must first find the
    // mapping for the given position and then return the opposite position it
    // points to. Because the mappings are sorted, we can use binary search to
    // find the best mapping.

    if (aNeedle[aLineName] <= 0) {
      throw new TypeError('Line must be greater than or equal to 1, got '
                          + aNeedle[aLineName]);
    }
    if (aNeedle[aColumnName] < 0) {
      throw new TypeError('Column must be greater than or equal to 0, got '
                          + aNeedle[aColumnName]);
    }

    return binarySearch.search(aNeedle, aMappings, aComparator, aBias);
  };

/**
 * Compute the last column for each generated mapping. The last column is
 * inclusive.
 */
BasicSourceMapConsumer.prototype.computeColumnSpans =
  function SourceMapConsumer_computeColumnSpans() {
    for (var index = 0; index < this._generatedMappings.length; ++index) {
      var mapping = this._generatedMappings[index];

      // Mappings do not contain a field for the last generated columnt. We
      // can come up with an optimistic estimate, however, by assuming that
      // mappings are contiguous (i.e. given two consecutive mappings, the
      // first mapping ends where the second one starts).
      if (index + 1 < this._generatedMappings.length) {
        var nextMapping = this._generatedMappings[index + 1];

        if (mapping.generatedLine === nextMapping.generatedLine) {
          mapping.lastGeneratedColumn = nextMapping.generatedColumn - 1;
          continue;
        }
      }

      // The last mapping for each line spans the entire line.
      mapping.lastGeneratedColumn = Infinity;
    }
  };

/**
 * Returns the original source, line, and column information for the generated
 * source's line and column positions provided. The only argument is an object
 * with the following properties:
 *
 *   - line: The line number in the generated source.
 *   - column: The column number in the generated source.
 *   - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or
 *     'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the
 *     closest element that is smaller than or greater than the one we are
 *     searching for, respectively, if the exact element cannot be found.
 *     Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'.
 *
 * and an object is returned with the following properties:
 *
 *   - source: The original source file, or null.
 *   - line: The line number in the original source, or null.
 *   - column: The column number in the original source, or null.
 *   - name: The original identifier, or null.
 */
BasicSourceMapConsumer.prototype.originalPositionFor =
  function SourceMapConsumer_originalPositionFor(aArgs) {
    var needle = {
      generatedLine: util.getArg(aArgs, 'line'),
      generatedColumn: util.getArg(aArgs, 'column')
    };

    var index = this._findMapping(
      needle,
      this._generatedMappings,
      "generatedLine",
      "generatedColumn",
      util.compareByGeneratedPositionsDeflated,
      util.getArg(aArgs, 'bias', SourceMapConsumer.GREATEST_LOWER_BOUND)
    );

    if (index >= 0) {
      var mapping = this._generatedMappings[index];

      if (mapping.generatedLine === needle.generatedLine) {
        var source = util.getArg(mapping, 'source', null);
        if (source !== null) {
          source = this._sources.at(source);
          if (this.sourceRoot != null) {
            source = util.join(this.sourceRoot, source);
          }
        }
        var name = util.getArg(mapping, 'name', null);
        if (name !== null) {
          name = this._names.at(name);
        }
        return {
          source: source,
          line: util.getArg(mapping, 'originalLine', null),
          column: util.getArg(mapping, 'originalColumn', null),
          name: name
        };
      }
    }

    return {
      source: null,
      line: null,
      column: null,
      name: null
    };
  };

/**
 * Return true if we have the source content for every source in the source
 * map, false otherwise.
 */
BasicSourceMapConsumer.prototype.hasContentsOfAllSources =
  function BasicSourceMapConsumer_hasContentsOfAllSources() {
    if (!this.sourcesContent) {
      return false;
    }
    return this.sourcesContent.length >= this._sources.size() &&
      !this.sourcesContent.some(function (sc) { return sc == null; });
  };

/**
 * Returns the original source content. The only argument is the url of the
 * original source file. Returns null if no original source content is
 * available.
 */
BasicSourceMapConsumer.prototype.sourceContentFor =
  function SourceMapConsumer_sourceContentFor(aSource, nullOnMissing) {
    if (!this.sourcesContent) {
      return null;
    }

    if (this.sourceRoot != null) {
      aSource = util.relative(this.sourceRoot, aSource);
    }

    if (this._sources.has(aSource)) {
      return this.sourcesContent[this._sources.indexOf(aSource)];
    }

    var url;
    if (this.sourceRoot != null
        && (url = util.urlParse(this.sourceRoot))) {
      // XXX: file:// URIs and absolute paths lead to unexpected behavior for
      // many users. We can help them out when they expect file:// URIs to
      // behave like it would if they were running a local HTTP server. See
      // https://bugzilla.mozilla.org/show_bug.cgi?id=885597.
      var fileUriAbsPath = aSource.replace(/^file:\/\//, "");
      if (url.scheme == "file"
          && this._sources.has(fileUriAbsPath)) {
        return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)]
      }

      if ((!url.path || url.path == "/")
          && this._sources.has("/" + aSource)) {
        return this.sourcesContent[this._sources.indexOf("/" + aSource)];
      }
    }

    // This function is used recursively from
    // IndexedSourceMapConsumer.prototype.sourceContentFor. In that case, we
    // don't want to throw if we can't find the source - we just want to
    // return null, so we provide a flag to exit gracefully.
    if (nullOnMissing) {
      return null;
    }
    else {
      throw new Error('"' + aSource + '" is not in the SourceMap.');
    }
  };

/**
 * Returns the generated line and column information for the original source,
 * line, and column positions provided. The only argument is an object with
 * the following properties:
 *
 *   - source: The filename of the original source.
 *   - line: The line number in the original source.
 *   - column: The column number in the original source.
 *   - bias: Either 'SourceMapConsumer.GREATEST_LOWER_BOUND' or
 *     'SourceMapConsumer.LEAST_UPPER_BOUND'. Specifies whether to return the
 *     closest element that is smaller than or greater than the one we are
 *     searching for, respectively, if the exact element cannot be found.
 *     Defaults to 'SourceMapConsumer.GREATEST_LOWER_BOUND'.
 *
 * and an object is returned with the following properties:
 *
 *   - line: The line number in the generated source, or null.
 *   - column: The column number in the generated source, or null.
 */
BasicSourceMapConsumer.prototype.generatedPositionFor =
  function SourceMapConsumer_generatedPositionFor(aArgs) {
    var source = util.getArg(aArgs, 'source');
    if (this.sourceRoot != null) {
      source = util.relative(this.sourceRoot, source);
    }
    if (!this._sources.has(source)) {
      return {
        line: null,
        column: null,
        lastColumn: null
      };
    }
    source = this._sources.indexOf(source);

    var needle = {
      source: source,
      originalLine: util.getArg(aArgs, 'line'),
      originalColumn: util.getArg(aArgs, 'column')
    };

    var index = this._findMapping(
      needle,
      this._originalMappings,
      "originalLine",
      "originalColumn",
      util.compareByOriginalPositions,
      util.getArg(aArgs, 'bias', SourceMapConsumer.GREATEST_LOWER_BOUND)
    );

    if (index >= 0) {
      var mapping = this._originalMappings[index];

      if (mapping.source === needle.source) {
        return {
          line: util.getArg(mapping, 'generatedLine', null),
          column: util.getArg(mapping, 'generatedColumn', null),
          lastColumn: util.getArg(mapping, 'lastGeneratedColumn', null)
        };
      }
    }

    return {
      line: null,
      column: null,
      lastColumn: null
    };
  };

exports.BasicSourceMapConsumer = BasicSourceMapConsumer;

/**
 * An IndexedSourceMapConsumer instance represents a parsed source map which
 * we can query for information. It differs from BasicSourceMapConsumer in
 * that it takes "indexed" source maps (i.e. ones with a "sections" field) as
 * input.
 *
 * The only parameter is a raw source map (either as a JSON string, or already
 * parsed to an object). According to the spec for indexed source maps, they
 * have the following attributes:
 *
 *   - version: Which version of the source map spec this map is following.
 *   - file: Optional. The generated file this source map is associated with.
 *   - sections: A list of section definitions.
 *
 * Each value under the "sections" field has two fields:
 *   - offset: The offset into the original specified at which this section
 *       begins to apply, defined as an object with a "line" and "column"
 *       field.
 *   - map: A source map definition. This source map could also be indexed,
 *       but doesn't have to be.
 *
 * Instead of the "map" field, it's also possible to have a "url" field
 * specifying a URL to retrieve a source map from, but that's currently
 * unsupported.
 *
 * Here's an example source map, taken from the source map spec[0], but
 * modified to omit a section which uses the "url" field.
 *
 *  {
 *    version : 3,
 *    file: "app.js",
 *    sections: [{
 *      offset: {line:100, column:10},
 *      map: {
 *        version : 3,
 *        file: "section.js",
 *        sources: ["foo.js", "bar.js"],
 *        names: ["src", "maps", "are", "fun"],
 *        mappings: "AAAA,E;;ABCDE;"
 *      }
 *    }],
 *  }
 *
 * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit#heading=h.535es3xeprgt
 */
function IndexedSourceMapConsumer(aSourceMap) {
  var sourceMap = aSourceMap;
  if (typeof aSourceMap === 'string') {
    sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, ''));
  }

  var version = util.getArg(sourceMap, 'version');
  var sections = util.getArg(sourceMap, 'sections');

  if (version != this._version) {
    throw new Error('Unsupported version: ' + version);
  }

  this._sources = new ArraySet();
  this._names = new ArraySet();

  var lastOffset = {
    line: -1,
    column: 0
  };
  this._sections = sections.map(function (s) {
    if (s.url) {
      // The url field will require support for asynchronicity.
      // See https://github.com/mozilla/source-map/issues/16
      throw new Error('Support for url field in sections not implemented.');
    }
    var offset = util.getArg(s, 'offset');
    var offsetLine = util.getArg(offset, 'line');
    var offsetColumn = util.getArg(offset, 'column');

    if (offsetLine < lastOffset.line ||
        (offsetLine === lastOffset.line && offsetColumn < lastOffset.column)) {
      throw new Error('Section offsets must be ordered and non-overlapping.');
    }
    lastOffset = offset;

    return {
      generatedOffset: {
        // The offset fields are 0-based, but we use 1-based indices when
        // encoding/decoding from VLQ.
        generatedLine: offsetLine + 1,
        generatedColumn: offsetColumn + 1
      },
      consumer: new SourceMapConsumer(util.getArg(s, 'map'))
    }
  });
}

IndexedSourceMapConsumer.prototype = Object.create(SourceMapConsumer.prototype);
IndexedSourceMapConsumer.prototype.constructor = SourceMapConsumer;

/**
 * The version of the source mapping spec that we are consuming.
 */
IndexedSourceMapConsumer.prototype._version = 3;

/**
 * The list of original sources.
 */
Object.defineProperty(IndexedSourceMapConsumer.prototype, 'sources', {
  get: function () {
    var sources = [];
    for (var i = 0; i < this._sections.length; i++) {
      for (var j = 0; j < this._sections[i].consumer.sources.length; j++) {
        sources.push(this._sections[i].consumer.sources[j]);
      }
    }
    return sources;
  }
});

/**
 * Returns the original source, line, and column information for the generated
 * source's line and column positions provided. The only argument is an object
 * with the following properties:
 *
 *   - line: The line number in the generated source.
 *   - column: The column number in the generated source.
 *
 * and an object is returned with the following properties:
 *
 *   - source: The original source file, or null.
 *   - line: The line number in the original source, or null.
 *   - column: The column number in the original source, or null.
 *   - name: The original identifier, or null.
 */
IndexedSourceMapConsumer.prototype.originalPositionFor =
  function IndexedSourceMapConsumer_originalPositionFor(aArgs) {
    var needle = {
      generatedLine: util.getArg(aArgs, 'line'),
      generatedColumn: util.getArg(aArgs, 'column')
    };

    // Find the section containing the generated position we're trying to map
    // to an original position.
    var sectionIndex = binarySearch.search(needle, this._sections,
      function(needle, section) {
        var cmp = needle.generatedLine - section.generatedOffset.generatedLine;
        if (cmp) {
          return cmp;
        }

        return (needle.generatedColumn -
                section.generatedOffset.generatedColumn);
      });
    var section = this._sections[sectionIndex];

    if (!section) {
      return {
        source: null,
        line: null,
        column: null,
        name: null
      };
    }

    return section.consumer.originalPositionFor({
      line: needle.generatedLine -
        (section.generatedOffset.generatedLine - 1),
      column: needle.generatedColumn -
        (section.generatedOffset.generatedLine === needle.generatedLine
         ? section.generatedOffset.generatedColumn - 1
         : 0),
      bias: aArgs.bias
    });
  };

/**
 * Return true if we have the source content for every source in the source
 * map, false otherwise.
 */
IndexedSourceMapConsumer.prototype.hasContentsOfAllSources =
  function IndexedSourceMapConsumer_hasContentsOfAllSources() {
    return this._sections.every(function (s) {
      return s.consumer.hasContentsOfAllSources();
    });
  };

/**
 * Returns the original source content. The only argument is the url of the
 * original source file. Returns null if no original source content is
 * available.
 */
IndexedSourceMapConsumer.prototype.sourceContentFor =
  function IndexedSourceMapConsumer_sourceContentFor(aSource, nullOnMissing) {
    for (var i = 0; i < this._sections.length; i++) {
      var section = this._sections[i];

      var content = section.consumer.sourceContentFor(aSource, true);
      if (content) {
        return content;
      }
    }
    if (nullOnMissing) {
      return null;
    }
    else {
      throw new Error('"' + aSource + '" is not in the SourceMap.');
    }
  };

/**
 * Returns the generated line and column information for the original source,
 * line, and column positions provided. The only argument is an object with
 * the following properties:
 *
 *   - source: The filename of the original source.
 *   - line: The line number in the original source.
 *   - column: The column number in the original source.
 *
 * and an object is returned with the following properties:
 *
 *   - line: The line number in the generated source, or null.
 *   - column: The column number in the generated source, or null.
 */
IndexedSourceMapConsumer.prototype.generatedPositionFor =
  function IndexedSourceMapConsumer_generatedPositionFor(aArgs) {
    for (var i = 0; i < this._sections.length; i++) {
      var section = this._sections[i];

      // Only consider this section if the requested source is in the list of
      // sources of the consumer.
      if (section.consumer.sources.indexOf(util.getArg(aArgs, 'source')) === -1) {
        continue;
      }
      var generatedPosition = section.consumer.generatedPositionFor(aArgs);
      if (generatedPosition) {
        var ret = {
          line: generatedPosition.line +
            (section.generatedOffset.generatedLine - 1),
          column: generatedPosition.column +
            (section.generatedOffset.generatedLine === generatedPosition.line
             ? section.generatedOffset.generatedColumn - 1
             : 0)
        };
        return ret;
      }
    }

    return {
      line: null,
      column: null
    };
  };

/**
 * Parse the mappings in a string in to a data structure which we can easily
 * query (the ordered arrays in the `this.__generatedMappings` and
 * `this.__originalMappings` properties).
 */
IndexedSourceMapConsumer.prototype._parseMappings =
  function IndexedSourceMapConsumer_parseMappings(aStr, aSourceRoot) {
    this.__generatedMappings = [];
    this.__originalMappings = [];
    for (var i = 0; i < this._sections.length; i++) {
      var section = this._sections[i];
      var sectionMappings = section.consumer._generatedMappings;
      for (var j = 0; j < sectionMappings.length; j++) {
        var mapping = sectionMappings[j];

        var source = section.consumer._sources.at(mapping.source);
        if (section.consumer.sourceRoot !== null) {
          source = util.join(section.consumer.sourceRoot, source);
        }
        this._sources.add(source);
        source = this._sources.indexOf(source);

        var name = section.consumer._names.at(mapping.name);
        this._names.add(name);
        name = this._names.indexOf(name);

        // The mappings coming from the consumer for the section have
        // generated positions relative to the start of the section, so we
        // need to offset them to be relative to the start of the concatenated
        // generated file.
        var adjustedMapping = {
          source: source,
          generatedLine: mapping.generatedLine +
            (section.generatedOffset.generatedLine - 1),
          generatedColumn: mapping.generatedColumn +
            (section.generatedOffset.generatedLine === mapping.generatedLine
            ? section.generatedOffset.generatedColumn - 1
            : 0),
          originalLine: mapping.originalLine,
          originalColumn: mapping.originalColumn,
          name: name
        };

        this.__generatedMappings.push(adjustedMapping);
        if (typeof adjustedMapping.originalLine === 'number') {
          this.__originalMappings.push(adjustedMapping);
        }
      }
    }

    quickSort(this.__generatedMappings, util.compareByGeneratedPositionsDeflated);
    quickSort(this.__originalMappings, util.compareByOriginalPositions);
  };

exports.IndexedSourceMapConsumer = IndexedSourceMapConsumer;

},{"./array-set":161,"./base64-vlq":162,"./binary-search":164,"./quick-sort":166,"./util":170}],168:[function(require,module,exports){
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

var base64VLQ = require('./base64-vlq');
var util = require('./util');
var ArraySet = require('./array-set').ArraySet;
var MappingList = require('./mapping-list').MappingList;

/**
 * An instance of the SourceMapGenerator represents a source map which is
 * being built incrementally. You may pass an object with the following
 * properties:
 *
 *   - file: The filename of the generated source.
 *   - sourceRoot: A root for all relative URLs in this source map.
 */
function SourceMapGenerator(aArgs) {
  if (!aArgs) {
    aArgs = {};
  }
  this._file = util.getArg(aArgs, 'file', null);
  this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null);
  this._skipValidation = util.getArg(aArgs, 'skipValidation', false);
  this._sources = new ArraySet();
  this._names = new ArraySet();
  this._mappings = new MappingList();
  this._sourcesContents = null;
}

SourceMapGenerator.prototype._version = 3;

/**
 * Creates a new SourceMapGenerator based on a SourceMapConsumer
 *
 * @param aSourceMapConsumer The SourceMap.
 */
SourceMapGenerator.fromSourceMap =
  function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) {
    var sourceRoot = aSourceMapConsumer.sourceRoot;
    var generator = new SourceMapGenerator({
      file: aSourceMapConsumer.file,
      sourceRoot: sourceRoot
    });
    aSourceMapConsumer.eachMapping(function (mapping) {
      var newMapping = {
        generated: {
          line: mapping.generatedLine,
          column: mapping.generatedColumn
        }
      };

      if (mapping.source != null) {
        newMapping.source = mapping.source;
        if (sourceRoot != null) {
          newMapping.source = util.relative(sourceRoot, newMapping.source);
        }

        newMapping.original = {
          line: mapping.originalLine,
          column: mapping.originalColumn
        };

        if (mapping.name != null) {
          newMapping.name = mapping.name;
        }
      }

      generator.addMapping(newMapping);
    });
    aSourceMapConsumer.sources.forEach(function (sourceFile) {
      var content = aSourceMapConsumer.sourceContentFor(sourceFile);
      if (content != null) {
        generator.setSourceContent(sourceFile, content);
      }
    });
    return generator;
  };

/**
 * Add a single mapping from original source line and column to the generated
 * source's line and column for this source map being created. The mapping
 * object should have the following properties:
 *
 *   - generated: An object with the generated line and column positions.
 *   - original: An object with the original line and column positions.
 *   - source: The original source file (relative to the sourceRoot).
 *   - name: An optional original token name for this mapping.
 */
SourceMapGenerator.prototype.addMapping =
  function SourceMapGenerator_addMapping(aArgs) {
    var generated = util.getArg(aArgs, 'generated');
    var original = util.getArg(aArgs, 'original', null);
    var source = util.getArg(aArgs, 'source', null);
    var name = util.getArg(aArgs, 'name', null);

    if (!this._skipValidation) {
      this._validateMapping(generated, original, source, name);
    }

    if (source != null) {
      source = String(source);
      if (!this._sources.has(source)) {
        this._sources.add(source);
      }
    }

    if (name != null) {
      name = String(name);
      if (!this._names.has(name)) {
        this._names.add(name);
      }
    }

    this._mappings.add({
      generatedLine: generated.line,
      generatedColumn: generated.column,
      originalLine: original != null && original.line,
      originalColumn: original != null && original.column,
      source: source,
      name: name
    });
  };

/**
 * Set the source content for a source file.
 */
SourceMapGenerator.prototype.setSourceContent =
  function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) {
    var source = aSourceFile;
    if (this._sourceRoot != null) {
      source = util.relative(this._sourceRoot, source);
    }

    if (aSourceContent != null) {
      // Add the source content to the _sourcesContents map.
      // Create a new _sourcesContents map if the property is null.
      if (!this._sourcesContents) {
        this._sourcesContents = Object.create(null);
      }
      this._sourcesContents[util.toSetString(source)] = aSourceContent;
    } else if (this._sourcesContents) {
      // Remove the source file from the _sourcesContents map.
      // If the _sourcesContents map is empty, set the property to null.
      delete this._sourcesContents[util.toSetString(source)];
      if (Object.keys(this._sourcesContents).length === 0) {
        this._sourcesContents = null;
      }
    }
  };

/**
 * Applies the mappings of a sub-source-map for a specific source file to the
 * source map being generated. Each mapping to the supplied source file is
 * rewritten using the supplied source map. Note: The resolution for the
 * resulting mappings is the minimium of this map and the supplied map.
 *
 * @param aSourceMapConsumer The source map to be applied.
 * @param aSourceFile Optional. The filename of the source file.
 *        If omitted, SourceMapConsumer's file property will be used.
 * @param aSourceMapPath Optional. The dirname of the path to the source map
 *        to be applied. If relative, it is relative to the SourceMapConsumer.
 *        This parameter is needed when the two source maps aren't in the same
 *        directory, and the source map to be applied contains relative source
 *        paths. If so, those relative source paths need to be rewritten
 *        relative to the SourceMapGenerator.
 */
SourceMapGenerator.prototype.applySourceMap =
  function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile, aSourceMapPath) {
    var sourceFile = aSourceFile;
    // If aSourceFile is omitted, we will use the file property of the SourceMap
    if (aSourceFile == null) {
      if (aSourceMapConsumer.file == null) {
        throw new Error(
          'SourceMapGenerator.prototype.applySourceMap requires either an explicit source file, ' +
          'or the source map\'s "file" property. Both were omitted.'
        );
      }
      sourceFile = aSourceMapConsumer.file;
    }
    var sourceRoot = this._sourceRoot;
    // Make "sourceFile" relative if an absolute Url is passed.
    if (sourceRoot != null) {
      sourceFile = util.relative(sourceRoot, sourceFile);
    }
    // Applying the SourceMap can add and remove items from the sources and
    // the names array.
    var newSources = new ArraySet();
    var newNames = new ArraySet();

    // Find mappings for the "sourceFile"
    this._mappings.unsortedForEach(function (mapping) {
      if (mapping.source === sourceFile && mapping.originalLine != null) {
        // Check if it can be mapped by the source map, then update the mapping.
        var original = aSourceMapConsumer.originalPositionFor({
          line: mapping.originalLine,
          column: mapping.originalColumn
        });
        if (original.source != null) {
          // Copy mapping
          mapping.source = original.source;
          if (aSourceMapPath != null) {
            mapping.source = util.join(aSourceMapPath, mapping.source)
          }
          if (sourceRoot != null) {
            mapping.source = util.relative(sourceRoot, mapping.source);
          }
          mapping.originalLine = original.line;
          mapping.originalColumn = original.column;
          if (original.name != null) {
            mapping.name = original.name;
          }
        }
      }

      var source = mapping.source;
      if (source != null && !newSources.has(source)) {
        newSources.add(source);
      }

      var name = mapping.name;
      if (name != null && !newNames.has(name)) {
        newNames.add(name);
      }

    }, this);
    this._sources = newSources;
    this._names = newNames;

    // Copy sourcesContents of applied map.
    aSourceMapConsumer.sources.forEach(function (sourceFile) {
      var content = aSourceMapConsumer.sourceContentFor(sourceFile);
      if (content != null) {
        if (aSourceMapPath != null) {
          sourceFile = util.join(aSourceMapPath, sourceFile);
        }
        if (sourceRoot != null) {
          sourceFile = util.relative(sourceRoot, sourceFile);
        }
        this.setSourceContent(sourceFile, content);
      }
    }, this);
  };

/**
 * A mapping can have one of the three levels of data:
 *
 *   1. Just the generated position.
 *   2. The Generated position, original position, and original source.
 *   3. Generated and original position, original source, as well as a name
 *      token.
 *
 * To maintain consistency, we validate that any new mapping being added falls
 * in to one of these categories.
 */
SourceMapGenerator.prototype._validateMapping =
  function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource,
                                              aName) {
    if (aGenerated && 'line' in aGenerated && 'column' in aGenerated
        && aGenerated.line > 0 && aGenerated.column >= 0
        && !aOriginal && !aSource && !aName) {
      // Case 1.
      return;
    }
    else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated
             && aOriginal && 'line' in aOriginal && 'column' in aOriginal
             && aGenerated.line > 0 && aGenerated.column >= 0
             && aOriginal.line > 0 && aOriginal.column >= 0
             && aSource) {
      // Cases 2 and 3.
      return;
    }
    else {
      throw new Error('Invalid mapping: ' + JSON.stringify({
        generated: aGenerated,
        source: aSource,
        original: aOriginal,
        name: aName
      }));
    }
  };

/**
 * Serialize the accumulated mappings in to the stream of base 64 VLQs
 * specified by the source map format.
 */
SourceMapGenerator.prototype._serializeMappings =
  function SourceMapGenerator_serializeMappings() {
    var previousGeneratedColumn = 0;
    var previousGeneratedLine = 1;
    var previousOriginalColumn = 0;
    var previousOriginalLine = 0;
    var previousName = 0;
    var previousSource = 0;
    var result = '';
    var next;
    var mapping;
    var nameIdx;
    var sourceIdx;

    var mappings = this._mappings.toArray();
    for (var i = 0, len = mappings.length; i < len; i++) {
      mapping = mappings[i];
      next = ''

      if (mapping.generatedLine !== previousGeneratedLine) {
        previousGeneratedColumn = 0;
        while (mapping.generatedLine !== previousGeneratedLine) {
          next += ';';
          previousGeneratedLine++;
        }
      }
      else {
        if (i > 0) {
          if (!util.compareByGeneratedPositionsInflated(mapping, mappings[i - 1])) {
            continue;
          }
          next += ',';
        }
      }

      next += base64VLQ.encode(mapping.generatedColumn
                                 - previousGeneratedColumn);
      previousGeneratedColumn = mapping.generatedColumn;

      if (mapping.source != null) {
        sourceIdx = this._sources.indexOf(mapping.source);
        next += base64VLQ.encode(sourceIdx - previousSource);
        previousSource = sourceIdx;

        // lines are stored 0-based in SourceMap spec version 3
        next += base64VLQ.encode(mapping.originalLine - 1
                                   - previousOriginalLine);
        previousOriginalLine = mapping.originalLine - 1;

        next += base64VLQ.encode(mapping.originalColumn
                                   - previousOriginalColumn);
        previousOriginalColumn = mapping.originalColumn;

        if (mapping.name != null) {
          nameIdx = this._names.indexOf(mapping.name);
          next += base64VLQ.encode(nameIdx - previousName);
          previousName = nameIdx;
        }
      }

      result += next;
    }

    return result;
  };

SourceMapGenerator.prototype._generateSourcesContent =
  function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) {
    return aSources.map(function (source) {
      if (!this._sourcesContents) {
        return null;
      }
      if (aSourceRoot != null) {
        source = util.relative(aSourceRoot, source);
      }
      var key = util.toSetString(source);
      return Object.prototype.hasOwnProperty.call(this._sourcesContents, key)
        ? this._sourcesContents[key]
        : null;
    }, this);
  };

/**
 * Externalize the source map.
 */
SourceMapGenerator.prototype.toJSON =
  function SourceMapGenerator_toJSON() {
    var map = {
      version: this._version,
      sources: this._sources.toArray(),
      names: this._names.toArray(),
      mappings: this._serializeMappings()
    };
    if (this._file != null) {
      map.file = this._file;
    }
    if (this._sourceRoot != null) {
      map.sourceRoot = this._sourceRoot;
    }
    if (this._sourcesContents) {
      map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot);
    }

    return map;
  };

/**
 * Render the source map being generated to a string.
 */
SourceMapGenerator.prototype.toString =
  function SourceMapGenerator_toString() {
    return JSON.stringify(this.toJSON());
  };

exports.SourceMapGenerator = SourceMapGenerator;

},{"./array-set":161,"./base64-vlq":162,"./mapping-list":165,"./util":170}],169:[function(require,module,exports){
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

var SourceMapGenerator = require('./source-map-generator').SourceMapGenerator;
var util = require('./util');

// Matches a Windows-style `\r\n` newline or a `\n` newline used by all other
// operating systems these days (capturing the result).
var REGEX_NEWLINE = /(\r?\n)/;

// Newline character code for charCodeAt() comparisons
var NEWLINE_CODE = 10;

// Private symbol for identifying `SourceNode`s when multiple versions of
// the source-map library are loaded. This MUST NOT CHANGE across
// versions!
var isSourceNode = "$$$isSourceNode$$$";

/**
 * SourceNodes provide a way to abstract over interpolating/concatenating
 * snippets of generated JavaScript source code while maintaining the line and
 * column information associated with the original source code.
 *
 * @param aLine The original line number.
 * @param aColumn The original column number.
 * @param aSource The original source's filename.
 * @param aChunks Optional. An array of strings which are snippets of
 *        generated JS, or other SourceNodes.
 * @param aName The original identifier.
 */
function SourceNode(aLine, aColumn, aSource, aChunks, aName) {
  this.children = [];
  this.sourceContents = {};
  this.line = aLine == null ? null : aLine;
  this.column = aColumn == null ? null : aColumn;
  this.source = aSource == null ? null : aSource;
  this.name = aName == null ? null : aName;
  this[isSourceNode] = true;
  if (aChunks != null) this.add(aChunks);
}

/**
 * Creates a SourceNode from generated code and a SourceMapConsumer.
 *
 * @param aGeneratedCode The generated code
 * @param aSourceMapConsumer The SourceMap for the generated code
 * @param aRelativePath Optional. The path that relative sources in the
 *        SourceMapConsumer should be relative to.
 */
SourceNode.fromStringWithSourceMap =
  function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer, aRelativePath) {
    // The SourceNode we want to fill with the generated code
    // and the SourceMap
    var node = new SourceNode();

    // All even indices of this array are one line of the generated code,
    // while all odd indices are the newlines between two adjacent lines
    // (since `REGEX_NEWLINE` captures its match).
    // Processed fragments are removed from this array, by calling `shiftNextLine`.
    var remainingLines = aGeneratedCode.split(REGEX_NEWLINE);
    var shiftNextLine = function() {
      var lineContents = remainingLines.shift();
      // The last line of a file might not have a newline.
      var newLine = remainingLines.shift() || "";
      return lineContents + newLine;
    };

    // We need to remember the position of "remainingLines"
    var lastGeneratedLine = 1, lastGeneratedColumn = 0;

    // The generate SourceNodes we need a code range.
    // To extract it current and last mapping is used.
    // Here we store the last mapping.
    var lastMapping = null;

    aSourceMapConsumer.eachMapping(function (mapping) {
      if (lastMapping !== null) {
        // We add the code from "lastMapping" to "mapping":
        // First check if there is a new line in between.
        if (lastGeneratedLine < mapping.generatedLine) {
          // Associate first line with "lastMapping"
          addMappingWithCode(lastMapping, shiftNextLine());
          lastGeneratedLine++;
          lastGeneratedColumn = 0;
          // The remaining code is added without mapping
        } else {
          // There is no new line in between.
          // Associate the code between "lastGeneratedColumn" and
          // "mapping.generatedColumn" with "lastMapping"
          var nextLine = remainingLines[0];
          var code = nextLine.substr(0, mapping.generatedColumn -
                                        lastGeneratedColumn);
          remainingLines[0] = nextLine.substr(mapping.generatedColumn -
                                              lastGeneratedColumn);
          lastGeneratedColumn = mapping.generatedColumn;
          addMappingWithCode(lastMapping, code);
          // No more remaining code, continue
          lastMapping = mapping;
          return;
        }
      }
      // We add the generated code until the first mapping
      // to the SourceNode without any mapping.
      // Each line is added as separate string.
      while (lastGeneratedLine < mapping.generatedLine) {
        node.add(shiftNextLine());
        lastGeneratedLine++;
      }
      if (lastGeneratedColumn < mapping.generatedColumn) {
        var nextLine = remainingLines[0];
        node.add(nextLine.substr(0, mapping.generatedColumn));
        remainingLines[0] = nextLine.substr(mapping.generatedColumn);
        lastGeneratedColumn = mapping.generatedColumn;
      }
      lastMapping = mapping;
    }, this);
    // We have processed all mappings.
    if (remainingLines.length > 0) {
      if (lastMapping) {
        // Associate the remaining code in the current line with "lastMapping"
        addMappingWithCode(lastMapping, shiftNextLine());
      }
      // and add the remaining lines without any mapping
      node.add(remainingLines.join(""));
    }

    // Copy sourcesContent into SourceNode
    aSourceMapConsumer.sources.forEach(function (sourceFile) {
      var content = aSourceMapConsumer.sourceContentFor(sourceFile);
      if (content != null) {
        if (aRelativePath != null) {
          sourceFile = util.join(aRelativePath, sourceFile);
        }
        node.setSourceContent(sourceFile, content);
      }
    });

    return node;

    function addMappingWithCode(mapping, code) {
      if (mapping === null || mapping.source === undefined) {
        node.add(code);
      } else {
        var source = aRelativePath
          ? util.join(aRelativePath, mapping.source)
          : mapping.source;
        node.add(new SourceNode(mapping.originalLine,
                                mapping.originalColumn,
                                source,
                                code,
                                mapping.name));
      }
    }
  };

/**
 * Add a chunk of generated JS to this source node.
 *
 * @param aChunk A string snippet of generated JS code, another instance of
 *        SourceNode, or an array where each member is one of those things.
 */
SourceNode.prototype.add = function SourceNode_add(aChunk) {
  if (Array.isArray(aChunk)) {
    aChunk.forEach(function (chunk) {
      this.add(chunk);
    }, this);
  }
  else if (aChunk[isSourceNode] || typeof aChunk === "string") {
    if (aChunk) {
      this.children.push(aChunk);
    }
  }
  else {
    throw new TypeError(
      "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk
    );
  }
  return this;
};

/**
 * Add a chunk of generated JS to the beginning of this source node.
 *
 * @param aChunk A string snippet of generated JS code, another instance of
 *        SourceNode, or an array where each member is one of those things.
 */
SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) {
  if (Array.isArray(aChunk)) {
    for (var i = aChunk.length-1; i >= 0; i--) {
      this.prepend(aChunk[i]);
    }
  }
  else if (aChunk[isSourceNode] || typeof aChunk === "string") {
    this.children.unshift(aChunk);
  }
  else {
    throw new TypeError(
      "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk
    );
  }
  return this;
};

/**
 * Walk over the tree of JS snippets in this node and its children. The
 * walking function is called once for each snippet of JS and is passed that
 * snippet and the its original associated source's line/column location.
 *
 * @param aFn The traversal function.
 */
SourceNode.prototype.walk = function SourceNode_walk(aFn) {
  var chunk;
  for (var i = 0, len = this.children.length; i < len; i++) {
    chunk = this.children[i];
    if (chunk[isSourceNode]) {
      chunk.walk(aFn);
    }
    else {
      if (chunk !== '') {
        aFn(chunk, { source: this.source,
                     line: this.line,
                     column: this.column,
                     name: this.name });
      }
    }
  }
};

/**
 * Like `String.prototype.join` except for SourceNodes. Inserts `aStr` between
 * each of `this.children`.
 *
 * @param aSep The separator.
 */
SourceNode.prototype.join = function SourceNode_join(aSep) {
  var newChildren;
  var i;
  var len = this.children.length;
  if (len > 0) {
    newChildren = [];
    for (i = 0; i < len-1; i++) {
      newChildren.push(this.children[i]);
      newChildren.push(aSep);
    }
    newChildren.push(this.children[i]);
    this.children = newChildren;
  }
  return this;
};

/**
 * Call String.prototype.replace on the very right-most source snippet. Useful
 * for trimming whitespace from the end of a source node, etc.
 *
 * @param aPattern The pattern to replace.
 * @param aReplacement The thing to replace the pattern with.
 */
SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) {
  var lastChild = this.children[this.children.length - 1];
  if (lastChild[isSourceNode]) {
    lastChild.replaceRight(aPattern, aReplacement);
  }
  else if (typeof lastChild === 'string') {
    this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement);
  }
  else {
    this.children.push(''.replace(aPattern, aReplacement));
  }
  return this;
};

/**
 * Set the source content for a source file. This will be added to the SourceMapGenerator
 * in the sourcesContent field.
 *
 * @param aSourceFile The filename of the source file
 * @param aSourceContent The content of the source file
 */
SourceNode.prototype.setSourceContent =
  function SourceNode_setSourceContent(aSourceFile, aSourceContent) {
    this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent;
  };

/**
 * Walk over the tree of SourceNodes. The walking function is called for each
 * source file content and is passed the filename and source content.
 *
 * @param aFn The traversal function.
 */
SourceNode.prototype.walkSourceContents =
  function SourceNode_walkSourceContents(aFn) {
    for (var i = 0, len = this.children.length; i < len; i++) {
      if (this.children[i][isSourceNode]) {
        this.children[i].walkSourceContents(aFn);
      }
    }

    var sources = Object.keys(this.sourceContents);
    for (var i = 0, len = sources.length; i < len; i++) {
      aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]);
    }
  };

/**
 * Return the string representation of this source node. Walks over the tree
 * and concatenates all the various snippets together to one string.
 */
SourceNode.prototype.toString = function SourceNode_toString() {
  var str = "";
  this.walk(function (chunk) {
    str += chunk;
  });
  return str;
};

/**
 * Returns the string representation of this source node along with a source
 * map.
 */
SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) {
  var generated = {
    code: "",
    line: 1,
    column: 0
  };
  var map = new SourceMapGenerator(aArgs);
  var sourceMappingActive = false;
  var lastOriginalSource = null;
  var lastOriginalLine = null;
  var lastOriginalColumn = null;
  var lastOriginalName = null;
  this.walk(function (chunk, original) {
    generated.code += chunk;
    if (original.source !== null
        && original.line !== null
        && original.column !== null) {
      if(lastOriginalSource !== original.source
         || lastOriginalLine !== original.line
         || lastOriginalColumn !== original.column
         || lastOriginalName !== original.name) {
        map.addMapping({
          source: original.source,
          original: {
            line: original.line,
            column: original.column
          },
          generated: {
            line: generated.line,
            column: generated.column
          },
          name: original.name
        });
      }
      lastOriginalSource = original.source;
      lastOriginalLine = original.line;
      lastOriginalColumn = original.column;
      lastOriginalName = original.name;
      sourceMappingActive = true;
    } else if (sourceMappingActive) {
      map.addMapping({
        generated: {
          line: generated.line,
          column: generated.column
        }
      });
      lastOriginalSource = null;
      sourceMappingActive = false;
    }
    for (var idx = 0, length = chunk.length; idx < length; idx++) {
      if (chunk.charCodeAt(idx) === NEWLINE_CODE) {
        generated.line++;
        generated.column = 0;
        // Mappings end at eol
        if (idx + 1 === length) {
          lastOriginalSource = null;
          sourceMappingActive = false;
        } else if (sourceMappingActive) {
          map.addMapping({
            source: original.source,
            original: {
              line: original.line,
              column: original.column
            },
            generated: {
              line: generated.line,
              column: generated.column
            },
            name: original.name
          });
        }
      } else {
        generated.column++;
      }
    }
  });
  this.walkSourceContents(function (sourceFile, sourceContent) {
    map.setSourceContent(sourceFile, sourceContent);
  });

  return { code: generated.code, map: map };
};

exports.SourceNode = SourceNode;

},{"./source-map-generator":168,"./util":170}],170:[function(require,module,exports){
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
 * Copyright 2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE or:
 * http://opensource.org/licenses/BSD-3-Clause
 */

/**
 * This is a helper function for getting values from parameter/options
 * objects.
 *
 * @param args The object we are extracting values from
 * @param name The name of the property we are getting.
 * @param defaultValue An optional value to return if the property is missing
 * from the object. If this is not specified and the property is missing, an
 * error will be thrown.
 */
function getArg(aArgs, aName, aDefaultValue) {
  if (aName in aArgs) {
    return aArgs[aName];
  } else if (arguments.length === 3) {
    return aDefaultValue;
  } else {
    throw new Error('"' + aName + '" is a required argument.');
  }
}
exports.getArg = getArg;

var urlRegexp = /^(?:([\w+\-.]+):)?\/\/(?:(\w+:\w+)@)?([\w.]*)(?::(\d+))?(\S*)$/;
var dataUrlRegexp = /^data:.+\,.+$/;

function urlParse(aUrl) {
  var match = aUrl.match(urlRegexp);
  if (!match) {
    return null;
  }
  return {
    scheme: match[1],
    auth: match[2],
    host: match[3],
    port: match[4],
    path: match[5]
  };
}
exports.urlParse = urlParse;

function urlGenerate(aParsedUrl) {
  var url = '';
  if (aParsedUrl.scheme) {
    url += aParsedUrl.scheme + ':';
  }
  url += '//';
  if (aParsedUrl.auth) {
    url += aParsedUrl.auth + '@';
  }
  if (aParsedUrl.host) {
    url += aParsedUrl.host;
  }
  if (aParsedUrl.port) {
    url += ":" + aParsedUrl.port
  }
  if (aParsedUrl.path) {
    url += aParsedUrl.path;
  }
  return url;
}
exports.urlGenerate = urlGenerate;

/**
 * Normalizes a path, or the path portion of a URL:
 *
 * - Replaces consecutive slashes with one slash.
 * - Removes unnecessary '.' parts.
 * - Removes unnecessary '<dir>/..' parts.
 *
 * Based on code in the Node.js 'path' core module.
 *
 * @param aPath The path or url to normalize.
 */
function normalize(aPath) {
  var path = aPath;
  var url = urlParse(aPath);
  if (url) {
    if (!url.path) {
      return aPath;
    }
    path = url.path;
  }
  var isAbsolute = exports.isAbsolute(path);

  var parts = path.split(/\/+/);
  for (var part, up = 0, i = parts.length - 1; i >= 0; i--) {
    part = parts[i];
    if (part === '.') {
      parts.splice(i, 1);
    } else if (part === '..') {
      up++;
    } else if (up > 0) {
      if (part === '') {
        // The first part is blank if the path is absolute. Trying to go
        // above the root is a no-op. Therefore we can remove all '..' parts
        // directly after the root.
        parts.splice(i + 1, up);
        up = 0;
      } else {
        parts.splice(i, 2);
        up--;
      }
    }
  }
  path = parts.join('/');

  if (path === '') {
    path = isAbsolute ? '/' : '.';
  }

  if (url) {
    url.path = path;
    return urlGenerate(url);
  }
  return path;
}
exports.normalize = normalize;

/**
 * Joins two paths/URLs.
 *
 * @param aRoot The root path or URL.
 * @param aPath The path or URL to be joined with the root.
 *
 * - If aPath is a URL or a data URI, aPath is returned, unless aPath is a
 *   scheme-relative URL: Then the scheme of aRoot, if any, is prepended
 *   first.
 * - Otherwise aPath is a path. If aRoot is a URL, then its path portion
 *   is updated with the result and aRoot is returned. Otherwise the result
 *   is returned.
 *   - If aPath is absolute, the result is aPath.
 *   - Otherwise the two paths are joined with a slash.
 * - Joining for example 'http://' and 'www.example.com' is also supported.
 */
function join(aRoot, aPath) {
  if (aRoot === "") {
    aRoot = ".";
  }
  if (aPath === "") {
    aPath = ".";
  }
  var aPathUrl = urlParse(aPath);
  var aRootUrl = urlParse(aRoot);
  if (aRootUrl) {
    aRoot = aRootUrl.path || '/';
  }

  // `join(foo, '//www.example.org')`
  if (aPathUrl && !aPathUrl.scheme) {
    if (aRootUrl) {
      aPathUrl.scheme = aRootUrl.scheme;
    }
    return urlGenerate(aPathUrl);
  }

  if (aPathUrl || aPath.match(dataUrlRegexp)) {
    return aPath;
  }

  // `join('http://', 'www.example.com')`
  if (aRootUrl && !aRootUrl.host && !aRootUrl.path) {
    aRootUrl.host = aPath;
    return urlGenerate(aRootUrl);
  }

  var joined = aPath.charAt(0) === '/'
    ? aPath
    : normalize(aRoot.replace(/\/+$/, '') + '/' + aPath);

  if (aRootUrl) {
    aRootUrl.path = joined;
    return urlGenerate(aRootUrl);
  }
  return joined;
}
exports.join = join;

exports.isAbsolute = function (aPath) {
  return aPath.charAt(0) === '/' || !!aPath.match(urlRegexp);
};

/**
 * Make a path relative to a URL or another path.
 *
 * @param aRoot The root path or URL.
 * @param aPath The path or URL to be made relative to aRoot.
 */
function relative(aRoot, aPath) {
  if (aRoot === "") {
    aRoot = ".";
  }

  aRoot = aRoot.replace(/\/$/, '');

  // It is possible for the path to be above the root. In this case, simply
  // checking whether the root is a prefix of the path won't work. Instead, we
  // need to remove components from the root one by one, until either we find
  // a prefix that fits, or we run out of components to remove.
  var level = 0;
  while (aPath.indexOf(aRoot + '/') !== 0) {
    var index = aRoot.lastIndexOf("/");
    if (index < 0) {
      return aPath;
    }

    // If the only part of the root that is left is the scheme (i.e. http://,
    // file:///, etc.), one or more slashes (/), or simply nothing at all, we
    // have exhausted all components, so the path is not relative to the root.
    aRoot = aRoot.slice(0, index);
    if (aRoot.match(/^([^\/]+:\/)?\/*$/)) {
      return aPath;
    }

    ++level;
  }

  // Make sure we add a "../" for each component we removed from the root.
  return Array(level + 1).join("../") + aPath.substr(aRoot.length + 1);
}
exports.relative = relative;

var supportsNullProto = (function () {
  var obj = Object.create(null);
  return !('__proto__' in obj);
}());

function identity (s) {
  return s;
}

/**
 * Because behavior goes wacky when you set `__proto__` on objects, we
 * have to prefix all the strings in our set with an arbitrary character.
 *
 * See https://github.com/mozilla/source-map/pull/31 and
 * https://github.com/mozilla/source-map/issues/30
 *
 * @param String aStr
 */
function toSetString(aStr) {
  if (isProtoString(aStr)) {
    return '$' + aStr;
  }

  return aStr;
}
exports.toSetString = supportsNullProto ? identity : toSetString;

function fromSetString(aStr) {
  if (isProtoString(aStr)) {
    return aStr.slice(1);
  }

  return aStr;
}
exports.fromSetString = supportsNullProto ? identity : fromSetString;

function isProtoString(s) {
  if (!s) {
    return false;
  }

  var length = s.length;

  if (length < 9 /* "__proto__".length */) {
    return false;
  }

  if (s.charCodeAt(length - 1) !== 95  /* '_' */ ||
      s.charCodeAt(length - 2) !== 95  /* '_' */ ||
      s.charCodeAt(length - 3) !== 111 /* 'o' */ ||
      s.charCodeAt(length - 4) !== 116 /* 't' */ ||
      s.charCodeAt(length - 5) !== 111 /* 'o' */ ||
      s.charCodeAt(length - 6) !== 114 /* 'r' */ ||
      s.charCodeAt(length - 7) !== 112 /* 'p' */ ||
      s.charCodeAt(length - 8) !== 95  /* '_' */ ||
      s.charCodeAt(length - 9) !== 95  /* '_' */) {
    return false;
  }

  for (var i = length - 10; i >= 0; i--) {
    if (s.charCodeAt(i) !== 36 /* '$' */) {
      return false;
    }
  }

  return true;
}

/**
 * Comparator between two mappings where the original positions are compared.
 *
 * Optionally pass in `true` as `onlyCompareGenerated` to consider two
 * mappings with the same original source/line/column, but different generated
 * line and column the same. Useful when searching for a mapping with a
 * stubbed out mapping.
 */
function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) {
  var cmp = mappingA.source - mappingB.source;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalLine - mappingB.originalLine;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalColumn - mappingB.originalColumn;
  if (cmp !== 0 || onlyCompareOriginal) {
    return cmp;
  }

  cmp = mappingA.generatedColumn - mappingB.generatedColumn;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.generatedLine - mappingB.generatedLine;
  if (cmp !== 0) {
    return cmp;
  }

  return mappingA.name - mappingB.name;
}
exports.compareByOriginalPositions = compareByOriginalPositions;

/**
 * Comparator between two mappings with deflated source and name indices where
 * the generated positions are compared.
 *
 * Optionally pass in `true` as `onlyCompareGenerated` to consider two
 * mappings with the same generated line and column, but different
 * source/name/original line and column the same. Useful when searching for a
 * mapping with a stubbed out mapping.
 */
function compareByGeneratedPositionsDeflated(mappingA, mappingB, onlyCompareGenerated) {
  var cmp = mappingA.generatedLine - mappingB.generatedLine;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.generatedColumn - mappingB.generatedColumn;
  if (cmp !== 0 || onlyCompareGenerated) {
    return cmp;
  }

  cmp = mappingA.source - mappingB.source;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalLine - mappingB.originalLine;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalColumn - mappingB.originalColumn;
  if (cmp !== 0) {
    return cmp;
  }

  return mappingA.name - mappingB.name;
}
exports.compareByGeneratedPositionsDeflated = compareByGeneratedPositionsDeflated;

function strcmp(aStr1, aStr2) {
  if (aStr1 === aStr2) {
    return 0;
  }

  if (aStr1 > aStr2) {
    return 1;
  }

  return -1;
}

/**
 * Comparator between two mappings with inflated source and name strings where
 * the generated positions are compared.
 */
function compareByGeneratedPositionsInflated(mappingA, mappingB) {
  var cmp = mappingA.generatedLine - mappingB.generatedLine;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.generatedColumn - mappingB.generatedColumn;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = strcmp(mappingA.source, mappingB.source);
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalLine - mappingB.originalLine;
  if (cmp !== 0) {
    return cmp;
  }

  cmp = mappingA.originalColumn - mappingB.originalColumn;
  if (cmp !== 0) {
    return cmp;
  }

  return strcmp(mappingA.name, mappingB.name);
}
exports.compareByGeneratedPositionsInflated = compareByGeneratedPositionsInflated;

},{}],171:[function(require,module,exports){
/*
 * Copyright 2009-2011 Mozilla Foundation and contributors
 * Licensed under the New BSD license. See LICENSE.txt or:
 * http://opensource.org/licenses/BSD-3-Clause
 */
exports.SourceMapGenerator = require('./lib/source-map-generator').SourceMapGenerator;
exports.SourceMapConsumer = require('./lib/source-map-consumer').SourceMapConsumer;
exports.SourceNode = require('./lib/source-node').SourceNode;

},{"./lib/source-map-consumer":167,"./lib/source-map-generator":168,"./lib/source-node":169}],172:[function(require,module,exports){
'use strict';
var ansiRegex = require('ansi-regex')();

module.exports = function (str) {
	return typeof str === 'string' ? str.replace(ansiRegex, '') : str;
};

},{"ansi-regex":60}],173:[function(require,module,exports){
'use strict';
module.exports = false;

},{}]},{},[3])(3)
});