jQuery案例 - W3xue在线HTML/CSS/JS运行工具

AخA
 
<html>
<head>
<script type="text/javascript" src="/js/jquery.js"></script>
<script type="text/javascript"> 
 
$(document).ready(function(){
    $("p:first").css("background-color","#B2E0FF");
});
 
</script>   
 
</head>
<body>
<html>
<body>
<h1>Welcome to My Homepage</h1>
<p class="intro">My name is Donald</p>
<p>I live in Duckburg</p>
<p>My best friend is Mickey</p>
<div id="choose">
Who is your favourite:
<ul>
<li>Goofy</li>
<li>Mickey</li>