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纯CSS实现的三级导航菜单效果代码

2015-09-18 14:48 936 查看
本文实例讲述了纯CSS实现的三级导航菜单效果代码。分享给大家供大家参考。具体如下：

这是一款CSS导航菜单，三级菜单，资源完整，超实用，希望大家喜欢。

运行效果截图如下：



在线演示地址如下：

http://demo.jb51.net/js/2015/css-3l-nav-menu-style-codes/

具体代码如下：

<!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><TITLE>CSS导航</TITLE>
<META content="text/html; charset=gb2312" http-equiv=Content-Type>
<style type="text/css">
<!--
body {
    font: 12px/1.6em Tahoma,Verdana;
    margin-top: 0px; 
    margin-right: 0px; 
    margin-bottom: 0px; 
    margin-left: 0px;
    line-height: 16.8px;
    }
#nav {
    Z-INDEX: 500; PADDING-BOTTOM: 0px; LIST-STYLE-TYPE: none; MARGIN: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; HEIGHT: 27px; LIST-STYLE-IMAGE: none; PADDING-TOP: 0px
}
#nav LI.top {
    DISPLAY: block; FLOAT: left; HEIGHT: 27px;
}
#nav LI A.top_link {
    PADDING-BOTTOM: 0px; LINE-HEIGHT: 27px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; DISPLAY: block; FLOAT: left; HEIGHT: 27px; FONT-SIZE: 12px; CURSOR: pointer; FONT-WEIGHT: bold; TEXT-DECORATION: none; PADDING-TOP: 0px
}
#nav LI A.top_link SPAN {
    PADDING-BOTTOM: 0px; WIDTH: 80px; DISPLAY: block; text-align:center; FLOAT: left; HEIGHT: 27px; PADDING-TOP: 0px
}
#nav LI A.top_link SPAN.down {
    PADDING-BOTTOM: 0px; WIDTH: 80px; DISPLAY: block; text-align:center; BACKGROUND: url(images/three1.gif) no-repeat right; FLOAT: left; HEIGHT: 27px; PADDING-TOP: 0px
}
#nav LI:hover A.top_link {
    background-color:#548bcf; color:#fff2ee;
}
#nav LI:hover A.top_link SPAN {
    background-color:#548bcf; color:#fff2ee;
}
#nav LI:hover A.top_link SPAN.down {
    background-color:#548bcf; color:#fff2ee;BACKGROUND: url(images/three1a.gif) no-repeat right;
}
#nav LI:hover {
    Z-INDEX: 200; POSITION: relative
}
#nav LI:hover UL.sub {
    Z-INDEX: 270; BORDER-BOTTOM: #ddd 1px solid; BORDER-LEFT: #ddd 1px solid; PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; WIDTH: 150px; PADDING-RIGHT: 0px; WHITE-SPACE: nowrap; BACKGROUND: #e1ecf6; HEIGHT: auto; BORDER-TOP: #ddd 1px solid; TOP: 27px; BORDER-RIGHT: #ddd 1px solid; PADDING-TOP: 0px; LEFT: 1px
}
#nav LI:hover UL.sub LI {
    POSITION: relative; WIDTH: 150px; DISPLAY: block; FLOAT: left; HEIGHT: 19px; FONT-WEIGHT: normal
}
#nav LI:hover UL.sub LI A {
    BORDER-BOTTOM: 0px; BORDER-LEFT: 0px; LINE-HEIGHT: 19px; TEXT-INDENT: 5px; WIDTH: 150px; DISPLAY: block; HEIGHT: 19px; COLOR: #000; FONT-SIZE: 12px; BORDER-TOP: 0px; BORDER-RIGHT: 0px; TEXT-DECORATION: none
}
#nav LI UL.sub LI A.fly {
    BACKGROUND: url(images/arrow.gif) #e1ecf6 no-repeat left center
}
#nav LI:hover UL.sub LI A:hover {
    BACKGROUND: url(images/subli_bg.gif) #548bcf repeat-x center center; COLOR: #fff; 
}
#nav LI:hover UL.sub LI A.fly:hover {
    BACKGROUND: url(images/arrow_over.gif) #548bcf no-repeat left center; COLOR: #fff
}
#nav LI:hover LI:hover UL {
    Z-INDEX: 400; BORDER-BOTTOM: #ddd 1px solid; BORDER-LEFT: #ddd 1px solid; PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; WIDTH: 150px; PADDING-RIGHT: 0px; WHITE-SPACE: nowrap; BACKGROUND: #e1ecf6; HEIGHT: auto; BORDER-TOP: #ddd 1px solid; TOP: -1px; BORDER-RIGHT: #ddd 1px solid; PADDING-TOP: 0px; LEFT: 144px
}
#nav LI:hover LI:hover LI:hover UL {
    Z-INDEX: 400; BORDER-BOTTOM: #ddd 1px solid; BORDER-LEFT: #ddd 1px solid; PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; WIDTH: 150px; PADDING-RIGHT: 0px; WHITE-SPACE: nowrap; BACKGROUND: #e1ecf6; HEIGHT: auto; BORDER-TOP: #ddd 1px solid; TOP: -1px; BORDER-RIGHT: #ddd 1px solid; PADDING-TOP: 0px; LEFT: 144px
}
#nav LI:hover LI:hover LI:hover LI:hover UL {
    Z-INDEX: 400; BORDER-BOTTOM: #ddd 1px solid; BORDER-LEFT: #ddd 1px solid; PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; WIDTH: 150px; PADDING-RIGHT: 0px; WHITE-SPACE: nowrap; BACKGROUND: #e1ecf6; HEIGHT: auto; BORDER-TOP: #ddd 1px solid; TOP: -1px; BORDER-RIGHT: #ddd 1px solid; PADDING-TOP: 0px; LEFT: 144px
}
#nav LI:hover LI:hover LI:hover LI:hover LI:hover UL {
    Z-INDEX: 400; BORDER-BOTTOM: #ddd 1px solid; BORDER-LEFT: #ddd 1px solid; PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; WIDTH: 150px; PADDING-RIGHT: 0px; WHITE-SPACE: nowrap; BACKGROUND: #e1ecf6; HEIGHT: auto; BORDER-TOP: #ddd 1px solid; TOP: -1px; BORDER-RIGHT: #ddd 1px solid; PADDING-TOP: 0px; LEFT: 144px
}
#nav UL {
    POSITION: absolute; PADDING-BOTTOM: 0px; LIST-STYLE-TYPE: none; MARGIN: 0px; PADDING-LEFT: 0px; WIDTH: 0px; PADDING-RIGHT: 0px; HEIGHT: 0px; TOP: -9999px; LIST-STYLE-IMAGE: none; PADDING-TOP: 0px; LEFT: -9999px
}
#nav LI:hover UL UL {
    POSITION: absolute; PADDING-BOTTOM: 0px; LIST-STYLE-TYPE: none; MARGIN: 0px; PADDING-LEFT: 0px; WIDTH: 0px; PADDING-RIGHT: 0px; HEIGHT: 0px; TOP: -9999px; LIST-STYLE-IMAGE: none; PADDING-TOP: 0px; LEFT: -9999px
}
#nav LI:hover LI:hover UL UL {
    POSITION: absolute; PADDING-BOTTOM: 0px; LIST-STYLE-TYPE: none; MARGIN: 0px; PADDING-LEFT: 0px; WIDTH: 0px; PADDING-RIGHT: 0px; HEIGHT: 0px; TOP: -9999px; LIST-STYLE-IMAGE: none; PADDING-TOP: 0px; LEFT: -9999px
}
#nav LI:hover LI:hover LI:hover UL UL {
    POSITION: absolute; PADDING-BOTTOM: 0px; LIST-STYLE-TYPE: none; MARGIN: 0px; PADDING-LEFT: 0px; WIDTH: 0px; PADDING-RIGHT: 0px; HEIGHT: 0px; TOP: -9999px; LIST-STYLE-IMAGE: none; PADDING-TOP: 0px; LEFT: -9999px
}
#nav LI:hover LI:hover LI:hover LI:hover UL UL {
    POSITION: absolute; PADDING-BOTTOM: 0px; LIST-STYLE-TYPE: none; MARGIN: 0px; PADDING-LEFT: 0px; WIDTH: 0px; PADDING-RIGHT: 0px; HEIGHT: 0px; TOP: -9999px; LIST-STYLE-IMAGE: none; PADDING-TOP: 0px; LEFT: -9999px
}
#nav LI:hover LI:hover A.fly {
    BORDER-BOTTOM-COLOR: #fff; BORDER-TOP-COLOR: #fff; BACKGROUND: url(images/arrow_over.gif) #548bcf no-repeat left center; COLOR: #fff; BORDER-RIGHT-COLOR: #fff; BORDER-LEFT-COLOR: #fff; 
}
#nav LI:hover LI:hover LI:hover A.fly {
    BORDER-BOTTOM-COLOR: #fff; BORDER-TOP-COLOR: #fff; BACKGROUND: url(images/arrow_over.gif) #548bcf no-repeat left center; COLOR: #fff; BORDER-RIGHT-COLOR: #fff; BORDER-LEFT-COLOR: #fff; 
}
#nav LI:hover LI:hover LI:hover LI:hover A.fly {
    BORDER-BOTTOM-COLOR: #fff; BORDER-TOP-COLOR: #fff; BACKGROUND: url(images/arrow_over.gif) #548bcf no-repeat left center; COLOR: #fff; BORDER-RIGHT-COLOR: #fff; BORDER-LEFT-COLOR: #fff; 
}
#nav LI:hover LI:hover LI:hover LI:hover LI:hover A.fly {
    BORDER-BOTTOM-COLOR: #fff; BORDER-TOP-COLOR: #fff; BACKGROUND: url(images/arrow_over.gif) #548bcf no-repeat left center; COLOR: #fff; BORDER-RIGHT-COLOR: #fff; BORDER-LEFT-COLOR: #fff; 
}
#nav LI:hover LI:hover LI A.fly {
    BORDER-BOTTOM-COLOR: #e1ecf6; BORDER-TOP-COLOR: #e1ecf6; BACKGROUND: url(images/arrow.gif) #e1ecf6 no-repeat left center; COLOR: #000; BORDER-RIGHT-COLOR: #e1ecf6; BORDER-LEFT-COLOR: #e1ecf6
}
#nav LI:hover LI:hover LI:hover LI A.fly {
    BORDER-BOTTOM-COLOR: #e1ecf6; BORDER-TOP-COLOR: #e1ecf6; BACKGROUND: url(images/arrow.gif) #e1ecf6 no-repeat left center; COLOR: #000; BORDER-RIGHT-COLOR: #e1ecf6; BORDER-LEFT-COLOR: #e1ecf6
}
#nav LI:hover LI:hover LI:hover LI:hover LI A.fly {
    BORDER-BOTTOM-COLOR: #e1ecf6; BORDER-TOP-COLOR: #e1ecf6; BACKGROUND: url(images/arrow.gif) #e1ecf6 no-repeat left center; COLOR: #000; BORDER-RIGHT-COLOR: #e1ecf6; BORDER-LEFT-COLOR: #e1ecf6
}
-->
</style>
</HEAD>
<BODY>
<UL id=nav>
 <LI class=top><A class=top_link 
 href="#"><SPAN>首页</SPAN></A></LI>
 <LI class=top><A id=products class=top_link 
 href="#"><SPAN 
 class=down>关于我们</SPAN></A> 
 <UL class=sub>
  <LI><A href="#">公司简介</A></LI>
  <LI><A href="#">董事长&总裁</A></LI>
  <LI><A href="#">发展历程</A></LI>
  <LI><A href="#">公司荣誉</A></LI></UL></LI>
 <LI class=top><A id=services class=top_link href="#"><SPAN 
 class=down>产品&服务</SPAN></A> 
 <UL class=sub>
  <LI><A class=fly href="#">产品1</A> 
  <UL>
   <LI><A href="#">配套</A></LI>
   <LI><A href="#">配件</A></LI></UL></LI>
  <LI><A class=fly href="#">产品2</A> 
  <UL>
   <LI><A href="#">产品2-1</A></LI>
   <LI><A href="#">产品2-2</A></LI></UL></LI>
  <LI><A class=fly href="#">服务</A> 
  <UL>
   <LI><A href="#">服务111</A></LI>
   <LI><A href="#">服务112</A></LI>
   <LI><A href="#">服务113</A></LI>
   <LI><A href="#">服务114</A></LI>
   <LI><A href="#">服务115</A></LI></UL></LI></UL></LI>
 <LI class=top><A id=contacts class=top_link 
 href="#"><SPAN class=down>新闻中心</SPAN></A> 
 <UL class=sub>
  <LI><A href="#">公告</A></LI>
  <LI><A href="#">行业新闻</A></LI></UL></LI>
 <LI class=top><A id=hr class=top_link href="#"><SPAN 
 class=down>人力资源</SPAN></A> 
 <UL class=sub>
  <LI><A href="#">人才战略</A></LI>
  <LI><A href="#">社会招聘</A></LI>
  <LI><A href="#">公司福利</A></LI></UL></LI>
 <LI class=top><A id=investors class=top_link 
 href="#"><SPAN class=down>合作伙伴</SPAN></A> 
 <UL class=sub>
  <LI><A href="#">伙伴1</A></LI>
  <LI><A href="#">伙伴2</A></LI>
  <LI><A href="#">伙伴3</A></LI></UL></LI>
 <LI class=top><A id=privacy class=top_link href="#"><SPAN>联系我们</SPAN></A></LI></UL>
</BODY>
</HTML>


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