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Bert BosCopyright © 2020 W3C®
Last updated 2020-06-05 04:46:07
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 Working Group has published an updated Working Draft of the CSS Overflow Module Level 3. This module contains the features of CSS relating to scrollable overflow handling in visual media. This level is focused on completing a precise specification for the existing overflow features, including the overflow property and its longhands; line-clamp, its longhands, and its legacy pre-standard syntax; and the text-overflow property. A few additional features introduced in support of the CSS Containment Module are also defined: overflow: clip and the overflow-clip-margin property.
It has been quite a while since the last update, so there is a fair amount of changes. The main changes can be broadly grouped in 3 categories:
line-clamp property and its longhands. The behavior is more precisely defined, takes into account ease-of-implementation concerns raised by interested browser vendors, and covers compatibility with the pre-standard -webkit-line-clamp property. Implementation experience is still limited, but the design is considered roughly complete. Detailed review and feedback is strongly encouraged at this point.overflow-clip-margin property, which determines how far outside its bounds the element is allowed to paint before being clipped when using overflow: clip or the related contain: paint from the CSS Containment Module.See the Changes section for further details.
Please send feedback by either filing an issue in GitHub (preferable) or sending mail to the (archived) public mailing list www-style@w3.org with the spec code ([css-overflow-3]) and your comment topic in the subject line. (Alternatively, you can email one of the editors and ask them to forward your comment.)