作者:茳小国 | 来源:互联网 | 2023-09-24 17:43
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<title>菜鸟教程(runoob.com)title>
<link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js">script>
<script src="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/js/bootstrap.min.js">script>
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<h2>背景h2>
<p class="bg-primary">该段落使用了类 "bg-primary"。p>
<a class="bg-primary" href="/index.php">该链接使用了类 "bg-primary"。a>
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