摘要：<!DOCTYPE html><html><head><meta charset="UTF-8"><title>导航</title><style type="text/css">*{margin: 0px;padding: 0px;}ul li{list-style: non
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>导航</title>
<style type="text/css">
*{margin: 0px;padding: 0px;}
ul li{list-style: none;}
.header{width: 100%;height: 40px;background-color: #000;}
ul{width:612px;height: 40px;margin:0 auto;}
ul li{width: 100px;height: 38px;line-height: 38px;text-align: center;border: 1px solid #ccc;float: left;}
ul li a{text-decoration: none;font-size: 14px;color: orange;display: block;}
ul li a:hover{color: red;font-size: 18px;background-color: #424242;}
.count{width: 612px;background-color: #ccc;margin: 0 auto;}
.count .left{width: 40%;height: 400px;float: left;background-color: blue;}
.count .right{width: 60%;height: 400px;float: right;background-color: red;}
.footer{height: 60px;background-color: #000;color: #fff;clear: both;}
</style>
</head>
<body>
<div>
<ul>
<li><a href="#">HTML</a></li>
<li><a href="#">CSs</a></li>
<li><a href="#">JS</a></li>
<li><a href="#">JQuery</a></li>
<li><a href="#">php</a></li>
<li><a href="#">Java</a></li>
</ul>
</div>
<div>
<div>左面</div>
<div>右面</div>
</div>
<div>底部</div>
</body>
</html>
批改老师：天蓬老师批改时间：2018-12-30 13:41:54
老师总结：页面中一旦用了浮动, 就是一定小心了, 因为浮动不好控制,一定要细心
