[wp-trac] [WordPress Trac] #23582: Twenty Thirteen: Audit and clean up browser prefixes

[WordPress Trac]

#23582: Twenty Thirteen: Audit and clean up browser prefixes
---------------------------+--------------------
 Reporter:  Jayjdk         |       Owner:
     Type:  enhancement    |      Status:  new
 Priority:  normal         |   Milestone:  3.6
Component:  Bundled Theme  |     Version:  trunk
 Severity:  normal         |  Resolution:
 Keywords:  has-patch      |
---------------------------+--------------------
Changes (by Jayjdk):

 * keywords:  needs-patch => has-patch


Comment:

 == Properties with prefixes: ==

 `text-size-adjust`
  * `-webkit`, `-ms`
  * Note: There's a `-moz` prefix as well but that doesn't support
 percentages
  * Recommendation:
         * Keep them

 `hyphens`
  * `-webkit`, `-moz`, `-ms`, `unprefixed`
  * Recommendation:
         * Keep them as they're all still needed

 `appearance`
  * `-webkit`
  * Recommendation:
         * Keep it

 `box-sizing`
  * `-webkit`, `-moz`, `-ms`, `unprefixed`
  * Recommendation:
         * Remove the `–ms` prefix as IE8-IE10 supports the unprefixed (the
 `-ms` prefix has never been used by any version of IE)
         * Keep the others as Firefox still needs the `–moz` and old webkit
 mobile browsers need `–webkit`.

 `font-smoothing`
  * `-webkit`
  * Recommendation:
         * Keep it.

 `linear-gradient`
  * `-webkit`, `-moz`, `-ms`, `-o`, `unprefixed`, `old IE`
  * Recommendation:
         * Remove `-ms` as IE10 supports the unprefixed version.
         * Remove `-moz` as Firefox 16 supports unprefixed
         * Keep the `-o` prefix even through the latest versions supports
 the unprefixed. Opera 12.10 was released on November 6, 2012.

 `transition`
  * `-webkit`, `-moz`, `-o`, `unprefixed`
  * Recommendation:
         * Remove `-moz` as Firefox 16 supports unprefixed
         * Keep the `-o` prefix (unprefixed supported in Opera 12.10)

 `calc`
  * `-webkit`, `unprefixed`
  * Recommendation:
         * Keep them.

 `transform: translate`
  * `-webkit`, `-moz`, `-ms`, `-o`, `unprefixed`
  * Recommendation:
         * Remove `-moz` as Firefox 16 supports unprefixed (nothing will
 break in older versions)
         * Keep the `-o` prefix (unprefixed supported in Opera 12.10)

 == Selectors with prefixes: ==

 Keep them all.

 == Properties without prefixes: ==

 `box-shadow`
  * Unprefixed version is not supported in Android Browser 3.0 and older,
 iOS Safari 4.3 or older and Blackberry Browser. The global usage for those
 is, according to http://caniuse.com, 3.34 % (Android Browser 2.3 alone is
 2.36 %)
  * Recommendation:
         * The only place the prefix ''might'' be needed as I see it is in
 `.blog .format-aside:first-of-type, .single .format-aside:first-of-type`
 and `.blog .format-link:first-of-type, .single .format-link:first-of-type`
 as it's used to create a separation between aside posts and the
 navigation.

 == Other Notes: ==
  * I still in favor of moving all the `box-sizing` stuff to an universal
 selector

-- 
Ticket URL: <http://core.trac.wordpress.org/ticket/23582#comment:4>
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