x
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<html>3
<head>4
<style>5
body {6
counter-reset: section;7
}8
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h1 {10
counter-reset: subsection;11
}12
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h1:before {14
counter-increment: section;15
content: "Section " counter(section) ". ";16
}17
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h2:before {19
counter-increment: subsection;20
content: counter(section) "." counter(subsection) " ";21
}22
</style>23
</head>24
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<body>26
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<p><b>注意:</b> 仅当 !DOCTYPE已经定义 IE8支持 这个属性.</p>28
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<h1>HTML tutorials</h1>30
<h2>HTML Tutorial</h2>31
<h2>XHTML Tutorial</h2>32
<h2>CSS Tutorial</h2>33
34
<h1>Scripting tutorials</h1>35
<h2>JavaScript</h2>36
<h2>VBScript</h2>37
38
<h1>XML tutorials</h1>39
<h2>XML</h2>40
<h2>XSL</h2>41
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</body>43
</html>