效果图:运行以后，刷新下即可。<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1- transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>jQuery淡入淡出、展开收缩菜单</title> <style type="text/css"> ul li{list-style:none;} ul li.menu{position:relative;width:120px;} ul li.menu ul{display:none;text-align:center;background:#fff;border:1px solid #ddd;width:100px;padding:5px;} ul li.menu ul li{padding:5px 0;border-bottom:1px dotted #ddd;}</style> </head> <body> <ul> <li> 弹出菜单 <ul class="content"> <li>菜单内容1</li> <li>菜单内容2</li> <li>菜单内容3</li> <li>菜单内容4</li> <li>菜单内容5</li> </ul> </li> </ul> </body> </html> [Ctrl+A 全选 注:引入外部Js需再刷新一下页面才能执行]
