<!DOCTYPE html>
<html>
<head>
<style>
div {
width: 150px;
height: 150px;
background: #8ebf42;
position: relative;
animation: play 1s infinite;
}
div:hover {
animation-play-state: paused;
}
@keyframes play {
from {
left: 0px;
}
to {
left: 200px;
}
}
</style>
</head>
<body>
<p>Hover over the green box to stop the animation.</p>
<div></div>
</body>
</html>