Re: [csswg-drafts] [css-contain] content-visibility: auto visibility check timing needs details (#8542)

Based on the resolution in #8694 , the algorithm in https://github.com/w3c/csswg-drafts/issues/8542#issuecomment-1515216159 would omit the scroll timeline updates, and just have content-visibility and resize observer steps.

The distinction between this and the timelines is that whereas timelines (afaiu) can change the size of elements but are discouraged from doing that, content-visibility is very likely to change the size because of the size-containment change and this is not discouraged. Thus, it's ok to defer the resize observation for any scroll timeline updates side-effects, but I would still prefer content-visibility output to feed into resize observer input for the same frame.

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Received on Wednesday, 3 May 2023 23:37:57 UTC