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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN" "http://www.w3.org/TR/REC-html40/strict.dtd">
<html>
<head>
<title>
css counters
</title>
<style type="text/css">
body {
counter-reset: section;
}
h1 {
counter-reset: subsection;
}
h1::before {
counter-increment: section;
content: "Section " counter(section) ". ";
}
h2::before {
counter-increment: subsection;
content: counter(section) "." counter(subsection) " ";
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ol {
counter-reset: section;
list-style-type: none;
}
li::before {
counter-increment: section;
content: counters(section,".") " ";
}
</style>
</head>
<body>
<h1>HTML/CSS Tutorials</h1>
<h2>HTML</h2>
<h2>CSS</h2>
<h2>Bootstrap</h2>
<h2>W3.CSS</h2>
<h1>Scripting Tutorials</h1>
<h2>JavaScript</h2>
<h2>jQuery</h2>
<h2>React</h2>
<h1>Programming Tutorials</h1>
<h2>Python</h2>
<h2>Java</h2>
<h2>C++</h2>
<ol>
<li>item</li>
<li>item
<ol>
<li>item</li>
<li>item</li>
<li>item
<ol>
<li>item</li>
<li>item</li>
<li>item</li>
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</li>
<li>item</li>
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</li>
<li>item</li>
<li>item</li>
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<ol>
<li>item</li>
<li>item</li>
</ol>
</body>
</html>
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