<!DOCTYPE html> <html> <head> <title>菜鸟教程(runoob.com)</title> <meta name="viewport" content="width=device-width, initial-scale=1" charset="utf-8"> <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> </head> <body> <div class="container"> <h2>排版</h2> <p>设置 pre 元素可滚动：</p> <pre class="pre-scrollable"> 内容可滚动 Text in a pre element is displayed in a fixed-width font, and it preserves both spaces and line breaks. Text in a pre element is displayed in a fixed-width font, and it preserves both spaces and line breaks. </pre> </div> </body> </html>
