CSS仿淘宝首页导航条布局效果 - phpStudy

CSS仿淘宝首页导航条布局效果

以下是CSS内容部分：

<style>  
/*子鼠*/  
body{ font-size:12px; text-align:center;  margin-top:30px; font-family:Verdana;}  
div,img{margin:0; padding:0; border:0;}  
ul,li{list-style-type: none; margin:0; padding:0; float:left; }  
#info{ margin-left:auto; margin-right:auto;width:760px; text-align:left;}  
#new{ margin-top:-12px;position: absolute;margin-left:-12px;}  
#nav{ height:30px; width:610px; margin-left:auto; margin-right:auto;}  
#nav li{margin-left:1px; height:30px;}  
#nav li a{ display:block;float:left; text-decoration:none; background-image: url(uploadfiles0/r200652134132.gif);background-repeat: no-repeat; display:block; background-position:left top;}  
#nav a span{cursor:hand; color:#000;background-image: url(uploadfiles0/v200652134115.gif);background-repeat: no-repeat; display:block;background-position: right top; padding:7px 10px 6px 10px; float:left; }  
#nav li a:active,#nav li a:hover {margin-top:0px; }  
#nav li  a:active span,#nav li a:hover span {padding:10px 10px 6px 10px; margin-top:0px; display:block; color:#FFF;}  
#zishu01 a:link,#zishu01 a:visited {background-position: 0px -27px;}  
#zishu01 a:link span,#zishu01 a:visited span{background-position:right -27px;padding:10px 10px 6px 10px; margin-top:0; color:#FFF; font-weight:bold;}  
#zishu02 a,#zishu03 a,#zishu04 a,#zishu05 a,#zishu06 a,#zishu07 a,#zishu08 a,#zishu09 a,#zishu10 a,#zishu11 a{margin-top:3px;}  
#zishu02 a:active,#zishu02 a:hover {background-position: 0px -57px;}  
#zishu02 a:active span,#zishu02 a:hover span{background-position:right -57px;}  
#zishu03 a:active,#zishu03 a:hover {background-position: 0px -87px;}  
#zishu03 a:active span,#zishu03 a:hover span{background-position:right -87px;}  
#zishu04 a:active,#zishu04 a:hover {background-position: 0px -117px;}  
#zishu04 a:active span,#zishu04 a:hover span{background-position:right -117px;}  
#zishu05 a:active,#zishu05 a:hover {background-position: 0px -147px;}  
#zishu05 a:active span,#zishu05 a:hover span{background-position:right -147px;}  
#zishu06 a:active,#zishu06 a:hover {background-position: 0px -177px;}  
#zishu06 a:active span,#zishu06 a:hover span{background-position:right -177px;}  
#zishu07 a:active,#zishu07 a:hover {background-position: 0px -207px;}  
#zishu07 a:active span,#zishu07 a:hover span{background-position:right -207px;}  
#zishu08 a:active,#zishu08 a:hover {background-position: 0px -237px;}  
#zishu08 a:active span,#zishu08 a:hover span{background-position:right -237px;}  
#zishu09 a:active,#zishu09 a:hover {background-position: 0px -267px;}  
#zishu09 a:active span,#zishu09 a:hover span{background-position:right -267px;}  
#zishu10 a:active,#zishu10 a:hover {background-position: 0px -297px;}  
#zishu10 a:active span,#zishu10 a:hover span{background-position:right -297px;}  
#zishu11 a:link span,#zishu11 a:visited span{color:#FF6600;}  
#zishu11 a:active,#zishu11 a:hover {background-position: 0px -327px;}  
#zishu11 a:active span,#zishu11 a:hover span{background-position:right -327px;}  
#menu{ width:760px; height:26px; background:#FF9900;}  
#r1{border-top: 0px;border-bottom: 0px; border-left:3px solid #fff;border-right:3px solid #fff; height:1px; overflow:hidden;}  
#r2{border-top: 0px;border-bottom: 0px; border-left:2px solid #fff;border-right:2px solid #fff; height:1px; overflow:hidden;}  
#r3{border-top: 0px;border-bottom: 0px;    border-left:1px solid #fff;border-right:1px solid #fff; height:1px; overflow:hidden;}  
</style>

以下是引用片段： 
<div id="info">  
    <div id="nav">  
        <ul>  
            <li id="zishu01">如需引入外部Js需刷新才能执行]</div>

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