_box-sizing.scss in compass-0.13.alpha.2

- old
+ new

@@ -1,13 +1,18 @@
 @import "shared";
 
+// ----------------------------------------------------------------------------
+// @private css3-feature-support variables must always include a list of five boolean values
+// representing in order: -moz, -webkit, -o, -ms, -khtml
+$box-sizing-support:  -moz, -webkit, not -o, not -ms, not -khtml;
+
+// ----------------------------------------------------------------------------
+// Mixin
+
 // Change the box model for Mozilla, Webkit, IE8 and the future
 //
-// @param $bs
-//   [ content-box | border-box ]
-
-@mixin box-sizing($bs) {
-  $bs: unquote($bs);
-  @include experimental(box-sizing, $bs,
-    -moz, -webkit, not -o, not -ms, not -khtml, official
-  );
+// @param $box-model
+//   [ content-box | border-box | padding-box ]
+@mixin box-sizing($box-model) {
+  $box-model: unquote($box-model);
+  @include experimental(box-sizing, $box-model, $box-sizing-support...);
 }