<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style>
*{margin: 0; padding: 0;}
ul,li{list-style: none;}
.container{perspective: 1300px;-webkit-perspective:1300px;}
.boxList{position:absolute; 630px;height:630px;left:50%;margin-left:-315px; -webkit-transform-style: preserve-3d;transform-style: preserve-3d;/*animation: a1 2s 1;*/transition: all 2s;}
.boxList li{float: left; 200px;height: 200px;margin:5px;background: darkcyan;-webkit-transition: all 0.3s;transition: all 0.3s;}
.on li:hover{-webkit-transform: translate3d(0,0,30px);transform: translate3d(0,0,30px);background:deepskyblue;box-shadow: 30px 30px 10px rgba(0, 0, 0, 0.5);}
.on{webkit-transform: rotateX(75deg) rotateY(0deg) rotateZ(45deg);transform: rotateX(75deg) rotateY(0deg) rotateZ(45deg);}
</style>
</head>
<body>
<div class="container">
<ul class="boxList">
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
</ul>
</div>
</body>
<script>
var list=document.querySelector('.boxList');
window.onload=function(){
setInterval(transition,1000)
}
function transition(){
list.className='on boxList';
}
</script>
</html>