<style>
*{
margin: 0;
padding: 0;
}
li{
list-style: none;
}
a{
text-decoration: none;
}
.nav{
width:100%;
height:40px;
background: #222222;
margin-top: 10px;
}
.nav .last{
width:1000px;
height:40px;
margin: 0 auto;
}
.last li{
float: left;
position: relative;
}
.last li:hover .down{
display: block;
}
.last li>a{
padding: 0 30px;
line-height: 40px;
display: block;
color:#aaa;
font-size: 16px;
}
.last li .down{
width:150px;
background: #333;
position: absolute;
left:0;
top:40px;
display: none;
}
.last li .down a{
display: block;
line-height: 30px;
color: #aaa;
font-size: 14px;
padding-left:30px;
}
.last li:hover>a{
background: #333;
color:#fff;
}
.last li .down a:hover {
color:#fff;
}
</style>
<script src="jquery-1.7.2.js"></script>
<!--<script src="style.js"></script>-->
</head>
<body>
<div class="nav">
<ul class="last">
<li><a href="javascript:;">首页</a></li>
<li>
<a href="javascript:;">职业课程</a>
<div class="down">
<a href="javascript:;">课程库</a>
<a href="javascript:;">课程库</a>
<a href="javascript:;">课程库</a>
<a href="javascript:;">课程库</a>
</div>
</li>
<li>
<a href="javascript:;">就业学习</a>
<div class="down">
<a href="javascript:;">web前端开发</a>
<a href="javascript:;">js前端开发</a>
<a href="javascript:;">web前端开发</a>
</div>
</li>
<li>
<a href="javascript:;">社区</a>
<div class="down">
<a href="javascript:;">技术问答</a>
<a href="javascript:;">社群</a>
<a href="javascript:;">资源</a>
</div>
</li>
<li>
<a href="javascript:;">社区++</a>
<div class="down">
<a href="javascript:;">高校合作</a>
<a href="javascript:;">人才联盟</a>
<a href="javascript:;">资源</a>
</div>
</li>
</ul>
</div>
</body>
</html>
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