CSS浮动做业
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<title>CSS浮动做业</title>
<style type="text/css">
ul li{list-style-type: none;width: 100px;height: 40px;line-height: 40px;text-align: center;background-color: pink;margin-right: 2px;float: left;}
.clear{clear: both;}
</style>
</head>
<body>
<ul>
<li>菜单</li>
<li>编辑</li>
<li>选择</li>
<li>查看</li>
</ul>
<div class=""clear>
</div>
</body>
</html>