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Re: [csswg-drafts] [css-contain-2] Spec is unclear about whether 0-sized boxes can be "relevant to the user" (since they have zero intersection area) (#5641)

From: Daniel Holbert via GitHub <sysbot+gh@w3.org>
Date: Tue, 27 Oct 2020 18:56:58 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-717466609-1603825016-sysbot+gh@w3.org>
> The intuition I'm actually going for, and should state more explicitly, is:
> 
>   * if both shapes have non-zero area, their intersection must have non-zero area.
>   * if one or both shapes have zero area, they must just be coincident at at least one point.

This makes sense to me (as does the epsilon-expansion thought-experiment). Thanks for working through this!

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