在线运行代码 - 菜鸟教程

<!DOCTYPE html>
<html>
<head>
<style>p~ul
{
background:#ff0000;
}
</style>
</head>
<body>

<div>A div element.</div>
<ul>
  <li>Coffee</li>
  <li>Tea</li>
  <li>Milk</li>
</ul>

<p>The first paragraph.</p>
<ul>
  <li>Coffee</li>
  <li>Tea</li>
  <li>Milk</li>
</ul>

<h2>Another list</h2>
<ul>
  <li>Coffee</li>
  <li>Tea</li>
  <li>Milk</li>
</ul>

</body>
</html>

源代码

动行结果