<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://libs.baidu.com/bootstrap/3.2.0/css/bootstrap.min.css">
</head>
<body>
<div class="container">
<h2>排版</h2>
<p> .list-unstyled 类移除了默认的列表样式，列表项左对齐 (直接子元素):</p>
<ul class="list-unstyled">
<li>Coffee</li>
<li>Tea
<ul>
<li>Black tea</li>
<li>Green tea</li>
</ul>
</li>
<li>Milk</li>
</ul>
</div>
<script src="https://libs.baidu.com/jquery/2.1.1/jquery.min.js"></script>
<script src="https://libs.baidu.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
</body>
</html>