向下的二级菜单用html,基于jQuery实现的向下滑动二级菜单效果代码-优快云博客

本文实例讲述了基于jQuery实现的向下滑动二级菜单效果代码。分享给大家供大家参考。具体如下：

这是一款使用jQuery制作向下滑动的二级菜单，本二级菜单带有动画效果，而且比较流畅，鼠标放在一级菜单上，就可以向下滑出二级子菜单，相对实用。

运行效果截图如下：

在线演示地址如下：

具体代码如下：

/p>

"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

向下滑动的二级菜单

body{ margin:0px; padding:0px; font-family: Arial, Helvetica, sans-serif; background-color:#dedede; color:#333333; position:relative;}

a{ text-decoration:none;}

h1,h2,h3,li,ul,dd,dt,dl,input{ margin:0px; padding:0px; list-style:none;}

.clear{ clear:both; width:0px; height:0px; line-height:0px; overflow:hidden; font-size:0px; display:block;}

img {border: none;}

.top{ width:890px; height:68px; margin:0px auto; padding:10px 0px 2px 0px; background-color:#FFFFFF;}

.logo{ width:269px; height:68px; padding:0px 8px 0px 3px; float:left;}

.logo h1{ width:269px; height:68px; background-image:url(images/logo.gif); background-repeat:no-repeat;}

.logo h1 a{ display:block; width:269px; height:68px; line-height:68px; font-size:14px; text-indent:-999px;}

.topad{ width:610px; height:68px; float:left;}

.dh{ width:890px; height:39px;margin:0px auto; background-image:url(images/nvabg.gif); background-repeat:repeat-x;}

.nav{ width:785px; height:38px; padding:1px 0px 0px 15px; float:left;}

.nav li{ height:38px; line-height:38px; float:left; font-size:14px; padding:0px 20px; color:#FFFFFF; position:relative;}

.nav li a{ color:#FFFFFF;}

.nav li a:hover{ text-decoration:underline; font-size:16px;}

.nav li .ttg{ height:auto; background-color:#FFFFFF; FILTER: alpha(opacity=80); opacity: 0.8; -moz-opacity: 0.8; position:absolute; left:0px; top:37px; z-index:1; width:150px; padding:10px 0px; -webkit-border-radius:5px; -moz-border-radius:5px; border-radius:5px; box-shadow:2px 2px 3px #666666; display:none;}

.nav li .ttg li{ width:120px; line-height:30px; font-size:16px; padding:0px 10px; font-family:"微软雅黑";}

.nav li .ttg li a{ color:#000;}

.sc{ width:90px; height:38px; line-height:38px; float:left; font-size:14px; color:#FFFFFF; text-align:center;}

.sc a{ color:#FFFFFF;}

.sc a:hover{ text-decoration:underline;}

.ad{ width:890px; height:auto; margin:10px auto;}

.ad img{ float: left; width:445px; overflow:hidden;}

$(document).ready(function(){

$(".nav li").hover(function(){

$(this).find(".ttg").slideToggle(500);

});