See https://wpt.fyi/results/css/css-animations/empty-pseudo-class-with-animation.html and http://wpt.live/css/css-animations/empty-pseudo-class-with-animation.html assert_equals: The background-color after inserting a child into the container no longer matches the value set by the :empty rule. expected "rgb(0, 255, 0)" actual "rgb(255, 0, 0)"
<rdar://problem/125051233>
This is a new WPT test that I added for the fix to bug 269051. It passes with ToT. *** This bug has been marked as a duplicate of bug 269051 ***