Posting World Wide Web Consortium(@w3c@w3c.social) The World Wide Web Consortium (W3C) was established in 1994 by Web inventor Tim Berners-Lee, to develop interoperable standards to lead the Web to its full potential.
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The CSS Working Group has published CSS Containment Module Level 1 as an updated W3C Recommendation, incorporating the changes since the 2022 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.
https://www.w3.org/news/2024/updated-w3c-recommendation-css-containment-module-level-1/
