<body>
<div class="container">
<h1>h1</h1>
<h2>h2</h2>
<h3>h3</h3>
<h4>h4</h4>
<h5>h5</h5>
<h1><small>h1</small></h1>
<small>small</small>
</div>
image.png
bootstrap h1-h6
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Origin blog.csdn.net/weixin_33916256/article/details/90866466
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