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    <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
    <title>我们回来了</title>

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.center {
  position: fixed;
  top: 30%;
  left: 50%;
  width:50%;
  height: 50%;
-webkit-transform: translateX(-50%) translateY(-50%);
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    <div class="center">
	     <div>事情是这个样子的......</div>
       <div><image src="index.jpeg" style="width:300px"/></div>
	     <div>太多年不写了</div>
       <div>SO,页面就是这个样子的......</div>
    </div>
</body>
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