<!DOCTYPE html>
<html>
<head>
<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">
<h2>Code</h2>
<p>For multiple lines of code, use the pre element:</p>
<pre>Text in a pre element
is displayed in a fixed-width
font, and it preserves
both spaces and
line breaks.</pre>
<p>If you add the .pre-scrollable class, the pre element gets a max-height of 350px and provides a y-axis scrollbar:</p>
<pre class="pre-scrollable">Text in a pre element
is displayed in a fixed-width
font, and it preserves
both spaces and
line breaks.</pre>
</div>
</body>
</html>