Bugzilla – Bug 21018
cascading of keyframes in @keyframes should be per-property rather than per-rule
Last modified: 2014-05-19 23:02:16 UTC
As proposed in:
Gecko implements it this way, and I think it fits better with the rest of CSS.
(Not sure how there wasn't a bug on this already.)
The WG resolved to allow keyframes to cascade on 2/20/13.
ACTION on glazou to propose the related OM updates.