trycss_cent_4 在线代码实例

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<!DOCTYPE html>
<html>
<meta charset="utf-8">
<title>编程狮(w3cschool.cn)</title>
<style>
<style type="text/css">
    
    * {margin:0;padding:0;}
    div {
      width:500px;border:1px solid #666;
      height:500px;
      background:url("/statics/images/w3c/intro.png") center no-repeat
    }
</style>
<body>
    <div></div>
</body>
</html>
 
 
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运行结果
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