.thing-that-moves{offset-path:path('M 5 5 m -4, 0 a 4,4 0 1,0 8,0 a 4,4 0 1,0 -8,0');animation:move3slinear infinite;}@keyframesmove{100%{motion-offset:100%;/* Old */offset-distance:100%;/* New */}} In this demo