This should be pretty simple to support given we already support ems. Here are places that need changing: https://searchfox.org/wubkat/rev/9709f5c78a15a0ae1e723096557a6a060822d868/Source/WebCore/css/CSSProperties.json#8301-8305 https://searchfox.org/wubkat/rev/9709f5c78a15a0ae1e723096557a6a060822d868/Source/WebCore/style/StyleBuilderConverter.h#881 https://searchfox.org/wubkat/rev/9709f5c78a15a0ae1e723096557a6a060822d868/Source/WebCore/rendering/style/TextDecorationThickness.h
This should fix this WPT: imported/w3c/web-platform-tests/css/css-fonts/size-adjust-text-decoration.tentative.html
I will take a look.
By the way, is the name of size-adjust-text-decoration.tentative.html a mistake? Its reference file name is size-adjust-text-decoration-tentative-ref.html. Yeah, I am talking about the dot just before "tentative".
Pull request: https://github.com/WebKit/WebKit/pull/19085
<rdar://problem/116985587>
*** Bug 255868 has been marked as a duplicate of this bug. ***
Committed 269886@main (4172b60326a8): <https://commits.webkit.org/269886@main> Reviewed commits have been landed. Closing PR #19085 and removing active labels.