RESOLVED FIXED 210690
[CSS selectors] Support :where() pseudo class 
https://bugs.webkit.org/show_bug.cgi?id=210690
Summary [CSS selectors] Support :where() pseudo class
Antti Koivisto
Reported 2020-04-18 09:33:10 PDT
https://drafts.csswg.org/selectors-4/#zero-matches The Specificity-adjustment pseudo-class, :where(), is a functional pseudo-class with the same syntax and functionality as :is(). Unlike :is(), neither the :where pseudo-class, nor any of its arguments contribute to the specificity of the selector—its specificity is always zero. This is useful for introducing filters in a selector while keeping the associated style declarations easy to override.
Attachments
patch (12.55 KB, patch)
2020-04-18 09:39 PDT, Antti Koivisto 		no flags
DetailsFormatted DiffDiff
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Antti Koivisto
Comment 1 2020-04-18 09:39:47 PDT
Created attachment 396852 [details] patch
EWS
Comment 2 2020-04-18 13:24:35 PDT
Committed r260319: <https://trac.webkit.org/changeset/260319> All reviewed patches have been landed. Closing bug and clearing flags on attachment 396852 [details].
Radar WebKit Bug Importer
Comment 3 2020-04-18 13:25:25 PDT
<rdar://problem/61981787>
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