Re: [csswg-drafts] [css-shadow-parts] consider moving part-mapping to style rules

The problem is that the power comes with a cost. Being able to change the presence of a part based on :hover, etc... would mean that we'd have to invent a new mechanism to implement in browser engines. Style invalidation would be a nightmare because now we'd need to first resolve part selectors to see if any part names have changed, then schedule a secondary path to actually invalidate elements, etc...

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Received on Friday, 3 August 2018 09:59:08 UTC