html仿百度百科导航下拉菜单功能代码实例

本篇文章小编给大家分享一下html仿百度百科导航下拉菜单功能代码实例，小编觉得挺不错的，现在分享给大家供大家参考，有需要的小伙伴们可以来看看。

演示图1

具体代码如下所示：

html+CSS仿百度百科导航下拉菜单
css/style.css" rel="stylesheet" type="text/css" />

样式

body{margin:0;padding:0;font-family:arial,tahoma,'Microsoft Yahei','5b8b4f53',sans-serif;;}
 
.top-bar{background-color:#f3f3f3;text-align:center;padding:2.5em;}
a{padding-bottom:3px;color:white;text-decoration:none;}
ul{list-style:none;padding:0;margin:0;}
li{text-align:center;}
 
.nav-bar{position:relative;z-index:1000;overflow:hidden;min-}
.nav-bar:hover{overflow:visible;-webkit-transition:all 0.5s ease;transition:all 0.5s ease;}
.nav-bg{position:absolute;width:100%;background:#24619c;background:rgba(36,97,158,.95);-webkit-transition:.3s;transition:.3s;z-index:9999;}
.nav-top{border-top:1px solid #5895d5;border-bottom:1px solid #3b92e9;background:#459df5;}
.nav-content{position:absolute;width:80%;left:10%;}
.nav-content-box{position:absolute;top:0;left:0;width:100%;}
.nav-content-box>li{float:left;line-}
.nav-content-box>li:hover{background:#19508b;}
.nav-content-box>li>span>a{display:block;width:100%;margin:0;line-}
.nav-content-box>li:hover>span>a{background:#338ce6;}
ul>li.index,ul>li.cat,ul>li.special,ul>li.user,ul>li.cooperation,ul>li.mobile{}
ul>li.index{}
ul.nav-content-box>li>ul{border-right:solid 1px #3a6fa2;margin:10px 0 6px}
ul.nav-content-box>li>ul:after{visibility:hidden;display:block;font-size:0;content:" ";clear:both;height:0}
.nav-content-box>li:hover>ul{border-right:none;padding-right:1px;}
ul.nav-content-box>li>ul>li{float:left;width:100%;line-height:2;text-align:center;}
ul.nav-content-box>li.cat>ul>li{width:49%;}
ul.nav-content-box>li>ul>li>a{display:block;width:100%;}