Re: [csswg-drafts] [css-anchor-position-1] Should animations use View Transitions as their backing mechanism? (by default or as an opt-in) (#9945) from Bramus via GitHub on 2026-03-02 (public-css-archive@w3.org from March 2026)

From: Bramus via GitHub <noreply@w3.org>
Date: Mon, 02 Mar 2026 09:26:02 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-3983158569-1772443559-noreply@w3.org>

To those interested (and/or following along): I prototyped an automatic animation between two different `position-area` values using [my custom `StyleObserver`](https://www.bram.us/2024/08/31/introducing-bramus-style-observer-a-mutationobserver-for-css/) that, when a change detected, starts a View Transition from the old to the new position: https://codepen.io/bramus/full/myrJYQz/b6aace5cc714e3147f81a2a1b4ed10f4

Because the positioned element is pretty small, that demo is not affected by [the `aspect-ratio` issues as described here](https://github.com/w3c/csswg-drafts/issues/9945#issuecomment-1944446897). OTOH, it _is_ affected by some browser bugs (in Chrome and Firefox) so the hack isn’t exactly production-ready.

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Received on Monday, 2 March 2026 09:26:03 UTC