Add scroll-driven-animations.dist.yml

[foolip]

No description provided.

[ddbeck]

I would like to be convinced on this. What's the case for pulling this one out, when they landed just four weeks apart?

[foolip]

https://chromestatus.com/feature/6752840701706240 says 115 and I expect caniuse would say 115 too if it was added. One bit of an API coming a release later is pretty common I think. Unless it's a terrible accident and the feature is unusable without that bit, I think #979 is the way to handle such cases.

[captainbrosset]

Maybe @bramus can share some insights about whether the timeline-scope property is a vital part of scroll-driven-animations, or whether the feature is mostly usable without it.

[bramus]

timeline-scope is there for when want to animate an element based on a scroller that is not a parent of the animated element.

In most cases though, the animation subject is a child of the scroller – I’ve only used timeline-scope a few times in my demos.