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Re: [csswg-drafts] [css-overflow-3] Scrollable Overflow contributions of zero height/width elements (#4791)

From: CSS Meeting Bot via GitHub <sysbot+gh@w3.org>
Date: Wed, 14 Jul 2021 16:38:15 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-880042947-1626280693-sysbot+gh@w3.org>
The CSS Working Group just discussed `css-overflow-3`, and agreed to the following:

* `RESOLVED: Elements with a zero-area border-box do not directly contribute to scrollable overflow area.`

<details><summary>The full IRC log of that discussion</summary>
&lt;fantasai> Topic: css-overflow-3<br>
&lt;fantasai> github: https://github.com/w3c/csswg-drafts/issues/4791#issuecomment-862553085<br>
&lt;TabAtkins> fantasai: If an element has zero area in its border box, it doesn't directly contribute to scrollable overflow<br>
&lt;TabAtkins> fantasai: It can have indirect effects, if it increases the height of its parent box or something<br>
&lt;TabAtkins> fantasai: But the element *itself* doesn't appear to do anything in impls. Should we add that to the spec?<br>
&lt;TabAtkins> astearns: Seems reasonable<br>
&lt;TabAtkins> florian: Yes, both because interop is good to spec, and because authors really hate when invisible boxes have side-effects<br>
&lt;TabAtkins> astearns: Would be great to have these tested properly too<br>
&lt;TabAtkins> astearns: So proposed resolution is to specify that zero-area border-box elements do not directly contribute to scrollable overflow area<br>
&lt;TabAtkins> astearns: Objections?<br>
&lt;TabAtkins> RESOLVED: Elements with a zero-area border-box do not directly contribute to scrollable overflow area.<br>
</details>


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