<!DOCTYPE html>
<html>
<head>
<title>Bootstrap实例</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://apps.bdimg.com/libs/bootstrap/3.3.0/css/bootstrap.min.css">
<script src="https://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script>
<script src="https://apps.bdimg.com/libs/bootstrap/3.3.0/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
<h3>Tooltip Options</h3>
<p>The <strong>html</strong> option specifies whether to accept HTML tags in the tooltip.</p>
<button class="btn btn-success btn-md">Hover over me</button>
</div>
<script>
$(document).ready(function(){ $('.btn').tooltip({title: "<h1><strong>HTML</strong> inside <code>the</code> <em>tooltip</em></h1>", html: true, placement: "bottom"}); });
</script>
</body>
</html>