尝试一下》

          <!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <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>
</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>
        
尝试一下 》
