Try it Editor: Change animation-iteration-count with JavaScript

Edit This Code :

<!DOCTYPE html>
<html>
<head>
<style> 
div {
    width: 100px;
    height: 100px;
    background: red;
    position: relative;
    -webkit-animation: mymove 5s 1;  /* Chrome, Safari, Opera */
    animation: mymove 5s 1;
}

/* Chrome, Safari, Opera */
@-webkit-keyframes mymove {
    from {left: 0px;}
    to {left: 200px;}
}

@keyframes mymove {
    from {left: 0px;}
    to {left: 200px;}
}
</style>
</head>
<body>
<h1>Change animation-iteration-count with JavaScript</h1>

<p>Click the "Try it" button to make animation play forever!</p>
<button onclick="myFunction()">Try it</button>
<div id="myDIV"></div>

<p><strong>Note:</strong> Click the button BEFORE the animation is finished! Else it will not have any affect because the animation will not start over once it has finished.</p>
<p><strong>Note:</strong> The animationIterationCount property is not supported in Edge.</p>

<script>
function myFunction() {
    document.getElementById("myDIV").style.WebkitAnimationIterationCount = "infinite";  // Code for Chrome, Safari, and Opera
    document.getElementById("myDIV").style.animationIterationCount = "infinite";
}
</script>

</body>
</html>
Result :