Bug 262670 – Align UA Stylesheet for `merror` in mathml.css

• Component: MathML
• Status: RESOLVED FIXED

[Ahmad Saleem]

Hi Team,

We are missing UA style sheet rule in our mathml.css:

Web-Spec: https://w3c.github.io/mathml-core/#error-message-merror

merror {
  border: 1px solid red;
  background-color: lightYellow;
}

and it leads to two progressions in WPT.

WPT Test Link: http://wpt.live/mathml/relations/css-styling/padding-border-margin/border-002.html

> Border properties on merror	
> Border properties on merror (rtl)	

____

Just wanted to raise so we can fix it.

Thanks!

[Ahmad Saleem]

It also progress one test case here: http://wpt.live/mathml/presentation-markup/mrow/merror-001.html

[EWS]

Committed 268941@main (76ad36c10382): <https://commits.webkit.org/268941@main>

Reviewed commits have been landed. Closing PR #18665 and removing active labels.

[Radar WebKit Bug Importer]

<rdar://problem/116540505>