<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>.toggleClass() 演示</title>
<link rel="stylesheet" href="/css/jqu1.10.4/jquery-ui.min.css">
<style>
div {
width: 100px;
height: 100px;
background-color: #ccc;
}
.big-blue {
width: 200px;
height: 200px;
background-color: #00f;
</style>
<script src="/js/jqu/jquery.min1.10.2.js"></script>
<script src="/js/jqu/jquery-ui.min1.10.4.js"></script>
</head>
<body>
<div></div>