Re: [csswg-drafts] [css-values-5][css-images-4] Allow to change the playback range of media via URL fragment (#12558)

Thank you, @LeaVerou, for raising the issue in the Media WG! It seems, adding animated images to the allowed media types for temporal media fragments requires re-chartering the Media Fragments Working Group.

To avoid that dependency, we might go the way suggested by @Crissov above and introduce URL modifiers for that.

Those could be two functions `start(<time [0s,∞]>)` and `end(<time [0s,∞]>)` plus possibly a `range(<time [0s,∞]>, <time [0s,∞]>)` function (maybe with a `time-` prefix to avoid ambiguities).

With those, the example above could be expressed as

```css
background-image: src("https://media3.giphy.com/media/v1.Y2lkPTc5MGI3NjExeXhmc3Q4dzIzZGJ5NzJ2dGUwaTlwNHdkaHRzeDk0bWI5eXpyazJ0aCZlcD12MV9pbnRlcm5hbF9naWZfYnlfaWQmY3Q9Zw/13FrpeVH09Zrb2/giphy.gif" end(3s));
```

Sebastian

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Received on Sunday, 3 August 2025 23:34:07 UTC