[wp-trac] [WordPress Trac] #59819: Change CSS align-item from start / end to flex-start / flex-end for full browser support

[WordPress Trac]

#59819: Change CSS align-item from start / end to flex-start / flex-end for full
browser support
----------------------------+-----------------------------
 Reporter:  hellofromTonya  |      Owner:  (none)
     Type:  defect (bug)    |     Status:  new
 Priority:  normal          |  Milestone:  Awaiting Review
Component:  Administration  |    Version:  trunk
 Severity:  normal          |   Keywords:
  Focuses:  css             |
----------------------------+-----------------------------
 During today's Dry Run `npm run grunt prerelease` step, `precommit:css`
 grunt task flagged the following warnings for CSS `align-items` property
 values:

 {{{
 >> autoprefixer: F:\WordPress Core
 Develop\develop.svn.wordpress.org\branches\6.4\src\wp-
 admin\css\about.css:537:2: start value has mixed support, consider using
 flex-start instead
 >> autoprefixer: F:\WordPress Core
 Develop\develop.svn.wordpress.org\branches\6.4\src\wp-
 admin\css\about.css:538:2: end value has
 mixed support, consider using flex-end instead
 >> autoprefixer: F:\WordPress Core
 Develop\develop.svn.wordpress.org\branches\6.4\src\wp-
 admin\css\media.css:1127:2: start value has mixed support, consider using
 flex-start instead
 }}}

 The `start` and `end` values are [https://caniuse.com/mdn-
 css_properties_align-items_flex_context_start_end not supported in Opera
 Mobile] which has a usage of 1.01%.

 [https://make.wordpress.org/core/handbook/best-practices/browser-support/
 On WordPress' Browsers Support page]:
 >Last 2 Opera versions.
 >
 >Browsers with > 1% usage based on [https://caniuse.com/usage-table can I
 use browser usage table].

 [https://caniuse.com/usage-table Opera Mobile's last 2 versions have a
 usage of}:
 * 73: 1.01%
 * 12.1: 0%

 Noting:
 [https://caniuse.com/flexbox Flexbox is well supported] on all browser
 versions that WordPress supports ✅

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/59819>
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