Re: [csswg-drafts] [css-nesting-1] Wrapping parent selectors with `:is()` introduces a host of problems (#9492)

It is always impliable, but it has to be reflected in the OM as *some* kind of rule, and that means it needs the rule needs to have a serialization. (Otherwise, some OM shapes you can construct won't round-trip: if we serialized this "naked props wrapped in a rule" as just the props, directly, then two of these rules in a row would round-trip as just one, and starting the child list with one of these rules would cause it to disappear.)

But authors shouldn't ever need to actually write this themselves, no.

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Received on Tuesday, 31 October 2023 20:15:26 UTC