279732 2024-09-15 03:41:15 -0700 [scroll-animations] add `animation-timeline` to the `animation` shorthand 2024-09-24 02:48:53 -0700 1 1 1 Unclassified WebKit Animations WebKit Nightly Build Unspecified Unspecified RESOLVED WONTFIX InRadar P2 Normal --- 222295 1 graouts graouts bramus fantasai.bugs graouts webkit-bug-importer oldest_to_newest 2060294 0 graouts 2024-09-15 03:41:15 -0700 The `animation-timeline` property is part of the `animation` shorthand. See https://github.com/web-platform-tests/wpt/issues/43500 for further discussion. 2060295 1 webkit-bug-importer 2024-09-15 03:41:55 -0700 <rdar://problem/136031404> 2060306 2 bramus 2024-09-15 06:44:56 -0700 Is this correct? IIRC we resolved on `animation-timeline` being a reset-only sub-property of the `animation` shorthand. There was a resolution on allowing `animation-timeline` in the shorthand under certain conditions (see https://github.com/w3c/csswg-drafts/issues/6946#issuecomment-1646065211) but AFAIK this has not been detailed nor specced yet. 2060325 3 graouts 2024-09-15 11:10:09 -0700 I see! The spec still lists `<single-animation-timeline>` in the animation shorthand https://drafts.csswg.org/css-animations-2/#animation-shorthand. I'm not sure when the new syntax is expected to be specified, but the spec should get updated to remove `<single-animation-timeline>` entirely for the time being. 2060326 4 bramus 2024-09-15 11:15:16 -0700 Agree on removing `<single-animation-timeline>` entirely for the time being. Best to double check with flackr and/or fantasai. 2062692 5 graouts 2024-09-24 02:48:53 -0700 Talked with fantasai and it doesn't look like the spec is ready for us to implement animation-timeline as part of the shorthand. We'll close this for now. Thanks for bringing this up Bramus.