<html lang="en">
<head>
<meta charset="utf-8">
<title>菜单部件（Menu Widget）演示</title>
<link rel="stylesheet" href="https://libs.baidu.com/jqueryui/1.10.4/css/jquery-ui.min.css">
<style>
.ui-menu {
width: 200px;
}
</style>
<script src="https://libs.baidu.com/jquery/1.10.2/jquery.min.js"></script>
<script src="https://libs.baidu.com/jqueryui/1.10.4/jquery-ui.min.js"></script>
</head>
<body>
<ul id="menu">
<li><a href="#">Item 1</a></li>
<li><a href="#">Item 2</a></li>
<li><a href="#">Item 3</a>
<ul>
<li><a href="#">Item 3-1</a></li>
<li><a href="#">Item 3-2</a></li>
<li><a href="#">Item 3-3</a></li>
<li><a href="#">Item 3-4</a></li>
<li><a href="#">Item 3-5</a></li>
</ul>
</li>
<li><a href="#">Item 4</a></li>
<li><a href="#">Item 5</a></li>
</ul>
<script>
$( "#menu" ).menu();
</script>
</body>
</html>