哈佛大学官网图标下拉变小代码
<!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>
<meta http-equiv="Content-Type" content="text
ml; charset=utf-8" />
<title>无标题文档</title>
<style type="text/css">
*{ margin:0px auto; padding:0px; font-family:微软雅黑; font-size:14px;}
#aa{ 100%; height:50px; background-color:#66C; margin-top:0px;}
</style>
</head>
<body>
<div >html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text
<title>无标题文档</title>
<style type="text/css">
*{ margin:0px auto; padding:0px; font-family:微软雅黑; font-size:14px;}
#aa{ 100%; height:50px; background-color:#66C; margin-top:0px;}
</style>
</head>
<body>
<div >html>