Re: [csswg-drafts] [css-contain-2] interaction between content-visibility and overflow-clip-margin (#5271)

The CSS Working Group just discussed `Interaction of content-visiblity and overflow-clip-margin`, and agreed to the following:

* `RESOLVED: use overflow-clip edge instead of border-edge for determining whether box is onscreenTa`

<details><summary>The full IRC log of that discussion</summary>
&lt;fantasai> Subtopic: Interaction of content-visiblity and overflow-clip-margin<br>
&lt;fantasai> github: https://github.com/w3c/csswg-drafts/issues/5271<br>
&lt;fantasai> florian: Content-visibility can hide stuff in some cases<br>
&lt;fantasai> florian: and there was a discussion about when box gets close enough to viewport, when do you take into account<br>
&lt;fantasai> florian: question is which box<br>
&lt;fantasai> florian: initially spec said "border box", but I think later it should have been "padding box"<br>
&lt;fantasai> florian: but since then we've added overflow-clip<br>
&lt;fantasai> florian: and this was aligning the area we care about for painting to both use overflow-clip-margin<br>
&lt;fantasai> florian: I believe this is fine and non-controversial<br>
&lt;fantasai> florian: proposed that element is considered on-screen if paint containment box [missed the rest]<br>
&lt;fantasai> florian: instead of overflow clip edge, previous version said border box<br>
&lt;fantasai> PROPOSED: use overflow-clip edge instead of border-edge for determiing whether box is onscreen<br>
&lt;flackr> +1<br>
&lt;fantasai> TabAtkins: Overflow clip edge is term of art linked to overflow-clip-margin<br>
&lt;fantasai> astearns: other questions?<br>
&lt;fantasai> astearns: objections?<br>
&lt;fantasai> fantasai: +1<br>
&lt;fantasai> RESOLVED: use overflow-clip edge instead of border-edge for determining whether box is onscreenTa<br>
</details>


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Received on Friday, 16 September 2022 21:57:43 UTC