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Re: [csswg-drafts] [css-sizing] cyclic percentage concept should not exist (#3010)

From: Tab Atkins Jr. via GitHub <sysbot+gh@w3.org>
Date: Tue, 11 Aug 2020 22:49:31 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-672335319-1597186170-sysbot+gh@w3.org>
Okay, folding in the simplification I talked about in my previous comment, along with the clarification to handle @fantasai's margin/padding point:

> Sometimes the size of a percentage-sized box’s <a>containing block</a>
> depends on the [=intrinsic size contribution=] of the box itself,
> creating a cyclic dependency.
> When calculating the <a>intrinsic size contribution</a> of such a box
> (including any calculations for a content-based <a>automatic minimum size</a>),
> a percentage value that resolves against a size
> in the same axis as the [=intrinsic size contribution=]
> is resolved specially:

We won't commit this to the spec quite yet, but we think it'll do what we need while being much more straightforward to interpret and adjudicate, like @dbaron wants.

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