淘宝分类导航条；纯css实现固定导航栏
效果例如以下：
页面例如以下：
<!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>
<style type="text/css">
ul, ol {
list-style: none outside none;
}
.nav-wrap {
width:100%;
height: 60px;
}
.float-navbar {
border-bottom: 1px solid #F3F3F3;
margin: 0;
padding: 0;
position: fixed;
top: 0;
z-index: 90000;
}
.navbar {
border-bottom: 1px solid #FFFFFF;
width: 100%;
background: none repeat scroll 0 0 #F7F7F7;
}
.fullscreen{
border-bottom: 1px solid #FFFFFF;
}
.clearfix:before, .clearfix:after {
content: "";
display: table;
line-height: 0;
}
.clearfix:after {
clear: both;
}
.clearfix:before, .clearfix:after {
content: "";
display: table;
line-height: 0;
}
.cat-index {
background: none repeat scroll 0 0 #F7F7F7;
margin: 0 auto;
padding: 0 7px;
width: 976px;
}
.cat-index li {
float: left;
padding: 9px 0;
text-align: center;
width: 61px;
}
.cat-index li a
{
text-decoration:none;
background: none repeat scroll 0 0 transparent;
cursor: pointer;
display: block;
overflow: hidden;
padding: 0 7px 0 8px;
position: relative;
width: 46px;
}
.cat-index li .text {
color: #FFFFFF;
display: block;
font-family: helvetica,stheiti,"微软雅黑";
font-size: 14px;
font-style: normal;
line-height: 46px;
padding: 0;
position: absolute;
width: 46px;
top:46px;
}
.cat-index li .shadow {
background: url("../image/shadow.png") no-repeat scroll 0 0 transparent;
display: block;
height: 46px;
left: 8px;
position: absolute;
top: 0;
width: 46px;
z-index: 10;
}
.cat-index li .icon {
background-color: #CCCCCC;
color: #FFFFFF;
display: block;
font-family: "hesperindex";
font-size: 30px;
font-style: normal;
height: 46px;
line-height: 46px;
width: 46px;
}
</style>
<style type="text/css">
.content
{
width:980px;
margin:auto;
height:800px;
}
</style>
<script type="text/javascript" src="js/jquery-1.9.1.js"></script>
<script type="text/javascript">
$(function () {
var box = ["#66aae9", "#ef7b91", "#8f8cac", "#91b566", "#8f8cac", "#79d9f3", "#79d9f3", "#fa5f94", "#f78499", "#ed9e5b", "#b9d329", "#ea3535", "#66aae9", "#5ddce3", "#69bcf3", "#ffae5b"];
$(".name").hover(function () {
var oThis = this;
$(this).find(".text").show();
$(this).find(".text").css("background", box[$(oThis).attr("data-id") - 1]);
$(this).find(".text").animate({ top: "0px" }, 300);
}, function () {
$(this).find(".text").animate({ top: "46px" }, 300);
})
$(".name").click(function () {
var ele = $(".name");
$.each(ele, function () {
$(this).find(".icon").css("background", "#CCCCCC");
})
$(this).find(".icon").css("background", box[$(this).attr("data-id") - 1]);
})
})
</script>
</head>
<body>
<div class="nav-wrap">
<div id="J_navbar" class="navbar float-navbar">
<div class="fullscreen">
<ul class="cat-index clearfix">
<li id="nav-cat1" class="">
<a class="name J_catindex t1" href="javascript:;" data-id="1">
<i class="shadow"></i>
<i class="icon">男</i>
<i class="text hidden" style="top: 46px;">男装</i>
</a>
</li>
<li id="nav-cat2" class="">
<a class="name J_catindex t2" href="javascript:;" data-id="2">
<i class="shadow"></i>
<i class="icon">女</i>
<i class="text hidden" style="top: 46px;">女装</i>
</a>
</li>
<li id="nav-cat3" class="">
<a class="name J_catindex t3" href="javascript:;" data-id="3">
<i class="shadow"></i>
<i class="icon">内</i>
<i class="text hidden" style="top: 46px;">内衣</i>
</a>
</li>
<li id="nav-cat4" class="">
<a class="name J_catindex t4" href="javascript:;" data-id="4">
<i class="shadow"></i>
<i class="icon">包</i>
<i class="text hidden" style="top: 46px;">鞋包</i>
</a>
</li>
<li id="nav-cat5" class="">
<a class="name J_catindex t5" href="javascript:;" data-id="5">
<i class="shadow"></i>
<i class="icon">饰</i>
<i class="text hidden" style="top: 46px;">配饰</i>
</a>
</li>
<li id="nav-cat6" class="">
<a class="name J_catindex t6" href="javascript:;" data-id="6">
<i class="shadow"></i>
<i class="icon">妆</i>
<i class="text hidden" style="top: 46px;">美妆</i>
</a>
</li>
<li id="nav-cat7" class="">
<a class="name J_catindex t7" href="javascript:;" data-id="7">
<i class="shadow"></i>
<i class="icon">吃</i>
<i class="text hidden" style="top: 46px;">食品</i>
</a>
</li>
<li id="nav-cat8" class="">
<a class="name J_catindex t8" href="javascript:;" data-id="8">
<i class="shadow"></i>
<i class="icon">电</i>
<i class="text hidden" style="top: 46px;">数码</i>
</a>
</li>
<li id="nav-cat9" class="">
<a class="name J_catindex t9" href="javascript:;" data-id="9">
<i class="shadow"></i>
<i class="icon">家</i>
<i class="text hidden" style="top: 46px;">家居</i>
</a>
</li>
<li id="nav-cat10" class="">
<a class="name J_catindex t10" href="javascript:;" data-id="10">
<i class="shadow"></i>
<i class="icon">货</i>
<i class="text hidden" style="top: 46px;">百货</i>
</a>
</li>
<li id="nav-cat11" class="">
<a class="name J_catindex t11" href="javascript:;" data-id="11">
<i class="shadow"></i>
<i class="icon">文</i>
<i class="text hidden" style="top: 46px;">文具</i>
</a>
</li>
<li id="nav-cat12" class="">
<a class="name J_catindex t12" href="javascript:;" data-id="12">
<i class="shadow"></i>
<i class="icon">书</i>
<i class="text hidden" style="top: 46px;">书本</i>
</a>
</li>
<li id="nav-cat13" class="">
<a class="name J_catindex t13" href="javascript:;" data-id="13">
<i class="shadow"></i>
<i class="icon">虚</i>
<i class="text hidden" style="top: 46px;">虚拟</i>
</a>
</li>
<li id="nav-cat14" class="">
<a class="name J_catindex t14" href="javascript:;" data-id="14">
<i class="shadow"></i>
<i class="icon">闲</i>
<i class="text hidden" style="top: 46px;">闲置</i>
</a>
</li>
<li id="nav-cat15" class="">
<a class="name J_catindex t15" href="javascript:;" data-id="15">
<i class="shadow"></i>
<i class="icon">潮</i>
<i class="text hidden" style="top: 46px;">潮品</i>
</a>
</li>
<li id="nav-cat16" class="selected">
<a class="name J_catindex t16" href="javascript:;" data-id="16">
<i class="shadow"></i>
<i class="icon">情</i>
<i class="text hidden" style="top: 46px;">情侣</i>
</a>
</li>
</ul>
</div>
</div>
</div>
<div class="content">
測试页面
</div>
</body>
</html>
