在线运行代码 - 菜鸟教程

<html><!DOCTYPE html>
<html>
<body>

<p>Standard pre</p>
<pre>This is a standard pre. It will use as much space as it needs.</pre>

<p>pre with a fixed width:</p>
<div style="width:200px;overflow:auto">
<pre>This is a pre with a fixed width. It will use as much space as specified.</pre>
</div>

</body>
</html>

源代码

动行结果