案例:CSS3 案例     状态:可编辑再运行    进入竖版
 运行结果 
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<html>
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<head>
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<style type="text/css">
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h1 {text-decoration: overline}
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h2 {text-decoration: line-through}
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h3 {text-decoration: underline}
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h4 {text-decoration:blink}
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a {text-decoration: none}
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</style>
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</head>
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<body>
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<h1>这是标题 1</h1>
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<h2>这是标题 2</h2>
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<h3>这是标题 3</h3>
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<h4>这是标题 4</h4>
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<p><a href="//www.w3xue.com/index.html">这是一个链接</a></p>
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</body>
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</html>
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