[csswg-drafts] [css-image-animation] Applicability of image-animation to the poster image of video elements (#13641)

frivoal has just created a new issue for https://github.com/w3c/csswg-drafts:

== [css-image-animation] Applicability of image-animation to the poster image of video elements ==
In the January discussion of the `image-animation` property, it was suggested that we may want it to apply to the poster image of a `<video>` element: if the `<video>` element is in a state where the poster image is displayed, and if the poster image is itself an animated image, then you'd be able to run/pause/stop it using this property.

Filing this issue to confirm if this is what we want.

We did not resolve at the time, but making it apply seemed to be the consensus at that time.

An alternative theory would be to say that the poster image of a `<video>` element isn't really considered an image as such, animated or otherwise, but rather a piece of UI of a complex element, and that the `image-animation` should not have effects on UI interactions, so it wouldn't apply.

Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/13641 using your GitHub account


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Received on Thursday, 12 March 2026 14:12:56 UTC