[wp-trac] [WordPress Trac] #47367: KSES: Update CSS properties considered safe for all users.

[WordPress Trac]

#47367: KSES: Update CSS properties considered safe for all users.
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 Reporter:  peterwilsoncc  |      Owner:  (none)
     Type:  defect (bug)   |     Status:  new
 Priority:  normal         |  Milestone:  Awaiting Review
Component:  Editor         |    Version:
 Severity:  normal         |   Keywords:
  Focuses:                 |
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 Apart from some minor updates to account for the block editor, the KSES
 list of allowed CSS properties for authors and contributors has not been
 updated for quite some time.

 Most significantly, not all safe grid and flex box attributes are
 supported. There are several other new features of CSS missing too.

 Reference: https://developer.mozilla.org/en-US/docs/Web/CSS/Reference

 Tasks

 * add support for new individual properties implicitly supported by
 shorthand attributes
 * determine what is considered safe


 Related #47281, #37248, #45067, #42729.

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Ticket URL: <https://core.trac.wordpress.org/ticket/47367>
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