{
  "title":":default CSS pseudo-class",
  "description":"The `:default` pseudo-class matches checkboxes and radio buttons which are checked by default, `<option>`s with the `selected` attribute, and the default submit button (if any) of a form.",
  "spec":"https://drafts.csswg.org/selectors-4/#the-default-pseudo",
  "status":"unoff",
  "links":[
    {
      "url":"https://html.spec.whatwg.org/multipage/scripting.html#selector-default",
      "title":"HTML specification for `:default`"
    },
    {
      "url":"https://developer.mozilla.org/en-US/docs/Web/CSS/:default",
      "title":"MDN Web Docs - CSS :default"
    },
    {
      "url":"https://wpdev.uservoice.com/forums/257854-microsoft-edge-developer/suggestions/13311459--default-pseudo-class-from-selectors-level-4",
      "title":"MS Edge feature request on UserVoice"
    },
    {
      "url":"http://jsbin.com/hiyada/edit?html,css,output",
      "title":"JS Bin testcase"
    },
    {
      "url":"https://bugs.webkit.org/show_bug.cgi?id=156230",
      "title":"WebKit bug 156230 - `:default` CSS pseudo-class should match checkboxes+radios with a `checked` attribute"
    }
  ],
  "bugs":[
    
  ],
  "categories":[
    "CSS"
  ],
  "stats":{
    "ie":{
      "5.5":"n",
      "6":"n",
      "7":"n",
      "8":"n",
      "9":"n",
      "10":"n",
      "11":"n"
    },
    "edge":{
      "12":"n",
      "13":"n",
      "14":"n",
      "15":"n",
      "16":"n",
      "17":"n",
      "18":"n"
    },
    "firefox":{
      "2":"u",
      "3":"u",
      "3.5":"u",
      "3.6":"u",
      "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",
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      "51":"y",
      "52":"y",
      "53":"y",
      "54":"y",
      "55":"y",
      "56":"y",
      "57":"y",
      "58":"y",
      "59":"y",
      "60":"y",
      "61":"y",
      "62":"y",
      "63":"y",
      "64":"y",
      "65":"y"
    },
    "chrome":{
      "4":"u",
      "5":"u",
      "6":"u",
      "7":"u",
      "8":"u",
      "9":"u",
      "10":"u",
      "11":"u",
      "12":"u",
      "13":"u",
      "14":"u",
      "15":"a #1",
      "16":"a #1",
      "17":"a #1",
      "18":"a #1",
      "19":"a #1",
      "20":"a #1",
      "21":"a #1",
      "22":"a #1",
      "23":"a #1",
      "24":"a #1",
      "25":"a #1",
      "26":"a #1",
      "27":"a #1",
      "28":"a #1",
      "29":"a #1",
      "30":"a #1",
      "31":"a #1",
      "32":"a #1",
      "33":"a #1",
      "34":"a #1",
      "35":"a #1",
      "36":"a #1",
      "37":"a #1",
      "38":"a #1",
      "39":"a #1",
      "40":"a #1",
      "41":"a #1",
      "42":"a #1",
      "43":"a #1",
      "44":"a #1",
      "45":"a #1",
      "46":"a #1",
      "47":"a #1",
      "48":"a #1",
      "49":"a #1",
      "50":"a #1",
      "51":"y",
      "52":"y",
      "53":"y",
      "54":"y",
      "55":"y",
      "56":"y",
      "57":"y",
      "58":"y",
      "59":"y",
      "60":"y",
      "61":"y",
      "62":"y",
      "63":"y",
      "64":"y",
      "65":"y",
      "66":"y",
      "67":"y",
      "68":"y",
      "69":"y",
      "70":"y",
      "71":"y",
      "72":"y",
      "73":"y"
    },
    "safari":{
      "3.1":"u",
      "3.2":"u",
      "4":"u",
      "5":"u",
      "5.1":"a #1",
      "6":"a #1",
      "6.1":"a #1",
      "7":"a #1",
      "7.1":"a #1",
      "8":"a #1",
      "9":"a #1",
      "9.1":"a #1",
      "10":"a #1",
      "10.1":"y",
      "11":"y",
      "11.1":"y",
      "12":"y",
      "TP":"y"
    },
    "opera":{
      "9":"u",
      "9.5-9.6":"u",
      "10.0-10.1":"u",
      "10.5":"u",
      "10.6":"u",
      "11":"u",
      "11.1":"u",
      "11.5":"u",
      "11.6":"a #2",
      "12":"a #2",
      "12.1":"a #2",
      "15":"a #1",
      "16":"a #1",
      "17":"a #1",
      "18":"a #1",
      "19":"a #1",
      "20":"a #1",
      "21":"a #1",
      "22":"a #1",
      "23":"a #1",
      "24":"a #1",
      "25":"a #1",
      "26":"a #1",
      "27":"a #1",
      "28":"a #1",
      "29":"a #1",
      "30":"a #1",
      "31":"a #1",
      "32":"a #1",
      "33":"a #1",
      "34":"a #1",
      "35":"a #1",
      "36":"a #1",
      "37":"a #1",
      "38":"y",
      "39":"y",
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      "41":"y",
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      "44":"y",
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      "46":"y",
      "47":"y",
      "48":"y",
      "49":"y",
      "50":"y",
      "51":"y",
      "52":"y",
      "53":"y",
      "54":"y",
      "55":"y",
      "56":"y"
    },
    "ios_saf":{
      "3.2":"u",
      "4.0-4.1":"u",
      "4.2-4.3":"u",
      "5.0-5.1":"u",
      "6.0-6.1":"u",
      "7.0-7.1":"a #1",
      "8":"a #1",
      "8.1-8.4":"a #1",
      "9.0-9.2":"a #1",
      "9.3":"a #1",
      "10.0-10.2":"a #1",
      "10.3":"y",
      "11.0-11.2":"y",
      "11.3-11.4":"y",
      "12":"y"
    },
    "op_mini":{
      "all":"a #2"
    },
    "android":{
      "2.1":"u",
      "2.2":"u",
      "2.3":"u",
      "3":"u",
      "4":"a #1",
      "4.1":"a #1",
      "4.2-4.3":"a #1",
      "4.4":"a #1",
      "4.4.3-4.4.4":"a #1",
      "67":"y"
    },
    "bb":{
      "7":"u",
      "10":"a #1"
    },
    "op_mob":{
      "10":"u",
      "11":"u",
      "11.1":"u",
      "11.5":"u",
      "12":"u",
      "12.1":"a #2",
      "46":"y"
    },
    "and_chr":{
      "69":"y"
    },
    "and_ff":{
      "62":"y"
    },
    "ie_mob":{
      "10":"n",
      "11":"n"
    },
    "and_uc":{
      "11.8":"a #1"
    },
    "samsung":{
      "4":"a #1",
      "5":"y",
      "6.2":"y",
      "7.2":"y"
    },
    "and_qq":{
      "1.2":"y"
    },
    "baidu":{
      "7.12":"n"
    }
  },
  "notes":"Whether `<option selected>` matches `:default` (per the spec) was not tested since `<select>`s and `<option>`s are generally not styleable, which makes it hard to formulate a test for this.",
  "notes_by_num":{
    "1":"Does not match `<input type=\"checkbox\" checked>` or `<input type=\"radio\" checked>`",
    "2":"Does not match the default submit button of a form"
  },
  "usage_perc_y":78.79,
  "usage_perc_a":12.19,
  "ucprefix":false,
  "parent":"",
  "keywords":":default,default",
  "ie_id":"",
  "chrome_id":"",
  "firefox_id":"",
  "webkit_id":"",
  "shown":true
}