[csswg-drafts] [web-animations-1,2] Interfaces design (#4464)

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

== [web-animations-1,2] Interfaces design ==
Greetings to everyone,
I think that instead of having one effect per an animation, there should be a sequence. Additionally I think that an effect should be sharable between elements, and the concept of a 'target element' should be changed to 'target element**s**'.

Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/4464 using your GitHub account