Tryit Editor v2.9

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

/* Chrome, Safari, Opera */ 
@-webkit-keyframes mymove {
    0%   {top: 0px; background: red; width: 100px;}
    100% {top: 200px; background: yellow; width: 300px;}
}

/* Standard syntax */
@keyframes mymove {
    0%   {top: 0px; background: red; width: 100px;}
    100% {top: 200px; background: yellow; width: 300px;}
}
</style>
</head>
<body>

<p><strong>Note:</strong> The @keyframes rule is not supported in Internet Explorer 9 and earlier versions.</p>

<div></div>

</body>
</html>