java学习Html学习
<!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/html; charset=gb2312" />
<title>无标题文档</title>
</head>
<body topmargin="0px" bottommargin="0px" leftmargin="0px" rightmargin="0px">
<div style="background-color:red; width:200px; height:200px;
"></div>
<div style="background-color:blue; width:180px; height:180px;">
<div style="background-color:pink; width:80px; height:80px;
position:absolute; left:40px; top:40px;">
</div>
</div>
<div style="background-color:green; width:100px; height:100px;
">
</div>
</body>
</html>
