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							- <!DOCTYPE html>
 
- <html lang="en">
 
- <head>
 
-     <meta charset="UTF-8">
 
-     <meta name="viewport" content="width=device-width, initial-scale=1.0">
 
-     <title>Document</title>
 
-     <style>
 
-         body{
 
-             /* 设置观众视角 */
 
-             /* 视角的距离 */
 
-             perspective: 1000px;
 
-             /* 视角的位置 */
 
-             perspective-origin: center center;
 
-         }
 
-         .box,.div1,.div2{
 
-             width: 200px;
 
-             height: 200px;
 
-         }
 
-         .box{
 
-             border:1px dashed black;
 
-             position: relative;
 
-             margin: 100px auto;
 
-             /* 使其内部元素的变形为3D效果 */
 
-             transform-style: preserve-3d;
 
-         }
 
-         .div1,.div2{
 
-             position: absolute;
 
-             top: 0;
 
-             left: 0;
 
-             transition: all 3s;
 
-         }
 
-         .div1{
 
-             background-color: red;
 
-         }
 
-         .div2{
 
-             background-color: blue;
 
-         }
 
-         .box:hover .div2{
 
-             transform: rotateY(180deg) translateZ(20px);
 
-         }
 
-         .box:hover .div1{
 
-             transform: rotateY(180deg) translateZ(1px);
 
-         }
 
-     </style>
 
- </head>
 
- <body>
 
-     <div class="box">
 
-         <div class="div1"></div>
 
-         <div class="div2"></div>
 
-     </div>
 
- </body>
 
- </html>
 
 
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