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<!DOCTYPE html>
<html>
<head>
<style> 
div {
  width: 100px;
  height: 100px;
  background: red;
  position: relative;
  animation: mymove 2s infinite;
  animation-play-state: paused;
}
@keyframes mymove {
  from {left: 0px;}
  to {left: 200px;}
}
</style>
</head>
<body>
<h1>Change animation-play-state with JavaScript</h1>
<p>Click the buttons to Play/Pause the animation:</p>
<button onclick="myPlayFunction()">Play</button>
<button onclick="myPauseFunction()">Pause</button>
<script>
function myPlayFunction() {
  document.getElementById("myDIV").style.animationPlayState = "running";
}
function myPauseFunction() {
  document.getElementById("myDIV").style.animationPlayState = "paused";
}
</script>
<div id="myDIV"></div>
</body>
</html>