HTML
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>笔下光年</title>
</head>
<body>
<p>perspective 属性支持动画效果。</p>
<p><b>注意：</b>Internet Explorer 9 及更早 IE 版本不支持 CSS 动画。</p>
<div id="div1">DIV1
<div id="div2">Think that you are looking down on a wall. See what happens when you gradually change the perspective!</div>
</div>
</body>
</html>
CSS
#div1 {
position: relative;
margin: auto;
height: 150px;
width: 250px;
padding: 10px;
border: 1px solid black;
/* Chrome, Safari, Opera */
-webkit-perspective: 200px;
-webkit-animation: mymove 5s infinite;
/* Standard syntax */
animation: mymove 5s infinite;
perspective: 200px;
}
/* Chrome, Safari, Opera */
@-webkit-keyframes mymove {
50% {-webkit-perspective: 100px;}
}
/* Standard syntax */
@keyframes mymove {
50% {perspective: 100px;}
}
#div2 {
padding: 50px;
position: absolute;
border: 1px solid black;
background-color: red;
-webkit-transform: rotateX(45deg); /* Chrome, Safari, Opera */
transform: rotateX(45deg);
}