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[CSSWG][css-contain] Updated CR of CSS Containment L1

From: Florian Rivoal <florian@rivoal.net>
Date: Thu, 24 May 2018 18:13:54 +0900
Message-Id: <DBC7D784-217D-48B5-9BC9-733099123359@rivoal.net>
To: www-style list <www-style@w3.org>, public-review-announce@w3.org
The CSS WG has published a Candidate Recommendation and invites implementations of the CSS Containment Module Level 1:


This CSS module describes the contain property, which indicates that the element’s subtree is independent of the rest of the page. This enables heavy optimizations by user agents when used well.

This update to the previous CR brings bug fixes and clarifications. No new feature has been added, nor has any feature been removed. All changes since the previous CR come with a test in Web Platform tests.

Significant changes are listed at:


Disposition of comments:

Please review the draft, and send any comments to this mailing list,
<www-style@w3.org>, prefixed with [css-contain] (as I did on this
message) or (preferably) file them in the GitHub repository at

For the CSS WG,
—Florian Rivoal
Received on Thursday, 24 May 2018 09:14:32 UTC

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