[csswg-drafts] An "all-namespaces" user agent stylesheet (#8573)

jakearchibald has just created a new issue for https://github.com/w3c/csswg-drafts:

== An "all-namespaces" user agent stylesheet ==
(not sure where to tag this issue, sorry)

Right now we have:

- [HTML user agent style sheet](https://html.spec.whatwg.org/multipage/rendering.html#the-css-user-agent-style-sheet-and-presentational-hints)
- [SVG user agent style sheet](https://www.w3.org/TR/SVG2/styling.html#UAStyleSheet)
- [MathML user agent style sheet](https://w3c.github.io/mathml-core/#user-agent-stylesheet)

But some styles should span all three, for example [view transition pseudo-element styles](https://drafts.csswg.org/css-view-transitions-1/#ua-styles), but perhaps also things like `::selection`.

It feels like we need a central "all-namespaces user agent stylesheet". Other specs could define a set of styles, and the central "all-namespaces user agent stylesheet" spec would include them (this would also define the ordering of styles from different specs).

Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/8573 using your GitHub account


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Received on Monday, 13 March 2023 13:58:14 UTC