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代码编辑器：

<!DOCTYPE html>
<meta charset="utf-8"><link href="/static/next/css/tryit.css?v=2017082407" rel="stylesheet"/> 
 
<style>
#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);
}
</style>
<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>

代码编辑器：

运行结果：