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Last updated 2019-11-21 09:33:12
This is a page from the Cascading Style Sheets Working Group Blog. Some other places to find information are the “current work” page, the www-style mailing list, the Future of CSS syndicator, and the issue list on Github.
Do you want to know how the CSS WG works? Fantasai has written about:csswg, An Inside View of the CSS Working Group at W3C.
The CSS WG has published the CSS Containment Module Level 1 as a W3C Recommendation
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 document is now a W3C Recommendation. As such, it has received the endorsement of W3C Members and the Director. W3C recommends the wide deployment of its Recommendations as standards for the Web. The W3C Royalty-Free IPR licenses granted under the W3C Patent Policy apply to W3C Recommendations.
Significant changes from earlier drafts are listed in the Changes section. A Disposition of comments since the Proposed Recommendation and Implementation Report are available.
If you find any error, please report them by either filing an issue in GitHub and including [css-contain-1] in the title of the issue (preferable), or sending mail to the (archived) public mailing list www-style@w3.org with the spec code ([css-contain-1]) and your comment topic in the subject line.
Further development will happen in the next level of this specification. To make comments about that draft, including suggestions for new features or other refinements, please either file an issue in GitHub and include [css-contain-2] in the title of the issue (preferable), or sending mail to the (archived) public mailing list www-style@w3.org with the spec code ([css-contain-2]) and your comment topic in the subject line.