#example-element{offset-path:path('M 0,20 L 200,20');animation:distance 3s infinite alternate ease-in-out;width:40px;height:40px;background:#0ff;animation-play-state:paused}#example-element.running{animation-play-state:running}.wrapper{background-image:linear-gradient(to bottom,transparent,transparent 49%,#000 50%,#000 51%,transparent 52%);border:1px solid #ccc;width:90%}@keyframes distance{0%{offset-distance:0%}100%{offset-distance:100%}}#playback{position:absolute;top:0;left:0;font-size:1em}