Re: [csswg-drafts] [css-conditional] `@supports-condition`, for larger feature queries and named reuse (#12622)

@SebastianZ the spec says:

> If multiple [@supports-condition](https://drafts.csswg.org/css-conditional-5/#at-ruledef-supports-condition) rules are defined with the same name, the last one in document order wins, and all preceding ones are ignored.

That's not great. We should do the same thing we resolved on for custom media queries, see https://github.com/w3c/csswg-drafts/issues/12536#issuecomment-3204778132. Otherwise it requires multiple passes to update the active style.

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Received on Thursday, 30 October 2025 09:06:09 UTC