The writing-mode and direction CSS properties are currently animatable in a discrete way.
But the CSSWG resolved that they shouldn't be animatable at all in order to simplify animating logical properties. See https://github.com/w3c/csswg-drafts/issues/2751
Firefox is doing this change in https://bugzilla.mozilla.org/show_bug.cgi?id=1473779
What steps will reproduce the problem?
(1) Use writing-mode or direction in @keyframes
What is the expected result?
They animate discretely.
What happens instead?
They shouldn't animate.
Comment 1 by obru...@igalia.com
, Jul 6