<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
div{
width:150px;
height:200px;
border:1px solid #000;
background:green;
animation: myAnimation 2s infinite;
-webkit-animation: myAnimation 2s infinite; /* Safari 4.0 - 8.0 */
}
@keyframes myAnimation {
50% {min-width: 300px;}
}
/* Safari 4.0 - 8.0 */
@-webkit-keyframes myAnimation {
50% {min-width: 300px;}
}
</style>
</head>
<body>
<h1>CSS Animatable min-width</h1>
<div></div> </body>
</html>