- From: Sebastian Zartner via GitHub <noreply@w3.org>
- Date: Fri, 23 Jan 2026 10:41:57 +0000
- To: public-css-archive@w3.org
SebastianZ has just created a new issue for https://github.com/w3c/csswg-drafts: == [css-conditional][css-transitions-2] Add an @supports keyword for support of transition-behavior for all properties == `transition-behavior` is already supported in all major browser engines. Though while it is meant to apply to _all_ discretely animated properties, some properties, especially `display` but also `content-visibility` and possibly others are not affected by it in some engines yet. At the same time, there is currently no CSS-only way to feature-detect that. Therefore, I think it makes sense to add a keyword to the `named-feature()` function for the `@supports` rule for that (see the resolution in https://github.com/w3c/csswg-drafts/issues/3559#issuecomment-1885332213). Sebastian Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/13387 using your GitHub account -- Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config
Received on Friday, 23 January 2026 10:41:58 UTC