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CSS navigation menu, three-level menu implementation code _ navigation menu

Source: Internet
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<! 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 navigation </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. 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. top_link SPAN {PADDING-BOTTOM: 0px; WIDTH: 80px; DISPLAY: block; text-align: center; FLOAT: left; HEIGHT: 27px; PADDING-TOP: 0px} # nav li. 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. top_link {background-color: # 548bcf; color: # fff2ee;} # nav LI: hover. top_link SPAN {background-color: # 548bcf; color: # fff2ee;} # nav LI: hover. 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. 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; COLOR: # fff ;}# nav LI: hover UL. sub li. fly: hover {BACKGROUND: url (/upload/201011/20101102232944875 .gif) # 548bcf no-repeat left center; COLOR: # fff} # nav 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 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 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 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 {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 {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 {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 {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. 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. 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. 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. 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. 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. 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. 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> <BODY> <UL id = nav> <LI class = top> <SPAN> homepage </SPAN> </LI> <LI class = top> <SPAN class = down> about us </SPAN> <UL class = sub> <LI> Company Profile </LI> <LI> Chairman and President </LI> <LI> Development History </LI> <LI> company honor </LI> </UL> </LI> <LI class = top> <SPAN class = down> Products & Services </SPAN> <UL class = sub> <LI> product 1 <UL> <LI> accessories </LI> </ UL> </LI> <LI> product 2 <UL> <LI> product 2-1 </LI> <LI> product 2-2 </LI> </UL> </LI> <LI> service <UL> <LI> service 111 </LI> <LI> service 112 </LI> <LI> Service 113 </LI> <LI> service 114 </LI> <LI> service 115 </LI> </UL> </LI> <LI class = top> <SPAN class = down> News Center </SPAN> <UL class = sub> <LI> announcement </LI> <LI> industry news </LI> </UL> </LI> <LI class = top> <SPAN class = down> Human Resources </SPAN> <UL class = sub> <LI> talent strategy </LI> <LI> social recruitment </LI> <LI> company benefits </LI> </UL> </LI> <LI class = top> <SPAN class = down> partners </SPAN> <UL class = sub> <LI> partner 1 </LI> <LI> partner 2 </LI> <LI> partner 3 </LI> </UL> </LI> <LI class = top> <SPAN> Contact Us </SPAN> </LI> </UL> </BODY> </HTML>
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