可以滑动，但是没滚动条啊
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>代码</title>
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
</head>
<body>
高度超出340px，就会在Y轴出现滚动条
<!--下面是代码任务部分-->
<pre class="pre-scrollable">
<ol>
<li>....</li>
<li>....</li>
<li>....</li>
<li>....</li>
<li>....</li>
<li>....</li>
<li>....</li>
<li>....</li>
<li>....</li>
<li>....</li>
<li>....</li>
<li>....</li>
<li>....</li>
<li>....</li>
</ol>
</pre>
</body>
</html>
1 | <br> |
