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CSS实现三级菜单导航

2016-05-19 14:49 639 查看
<!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(/upload/201011/20101102232944735.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(/upload/201011/20101102232944294.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(/upload/201011/20101102232944264.gif) #e1ecf6 no-repeat left center

}

#nav LI:hover UL.sub LI A:hover {

BACKGROUND: url(/upload/201011/20101102232944198.gif) #548bcf repeat-x center center; COLOR: #fff;

}

#nav LI:hover UL.sub LI A.fly:hover {

BACKGROUND: url(/upload/201011/20101102232944875.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(/upload/201011/20101102232944875.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(/upload/201011/20101102232944875.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(/upload/201011/20101102232944875.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(/upload/201011/20101102232944875.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(/upload/201011/20101102232944264.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(/upload/201011/20101102232944264.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(/upload/201011/20101102232944264.gif) #e1ecf6 no-repeat left center; COLOR: #000; BORDER-RIGHT-COLOR: #e1ecf6; BORDER-LEFT-COLOR: #e1ecf6

}

-->

</style>

</HEAD>

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