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运行代码 
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"> 
<title>W3Cschool教程(w3cschool.cn)</title> 
<style>
    body
    {
        background-image:url('/statics/images/w3c/intro.png');
        background-repeat:no-repeat;
        background-position:right top;
        margin-right:200px;
    }
</style>
</head>
<body>
    <h1>你好，编程狮！</h1>
    <p>背景图片不重复，设置 position 实例。</p>
    <p>背景图片只显示一次，并与文本分开。</p>
    <p>实例中还添加了 margin-right 属性用于让文本与图片间隔开。</p>
</body>
</html>
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