在线运行代码 - 菜鸟教程

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"> 
<title>菜鸟教程(cainiaoplay.com)</title>
<script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
  $("p:contains(is)").css("background-color","yellow");
});
</script>
</head>
<body>

<h1>欢迎来到我的主页</h1>
<p class="intro">My name is Donald.</p>
<p>I live in Duckburg.</p>
<p>My best friend is Mickey.</p>

<p>你最喜欢的网站:</p>
<ul id="choose">
<li>Google</li>
<li>Taobao</li>
<li>Runoob</li>
</ul>

</body>
</html>
源代码

动行结果
