大哥们谁能告诉我这么居中啊求求大家帮帮我
<html>
<head>
<meta charset="utf-8"/>
<title>标题</title>
</head>
<tabie>
<fom action="#" method+"get">
<p>用户名：<input type="text" name="username" value=""/></p>
<tr>
<th>密码：<input type="password" name="password" /></th>
<td><input type="checkbox" name="autologin"/>自动登录</td>
<th><input type="submit" value="登录"><th>
</tr>
<link href="index.css" rel="stylesheet"/>
<style type="text/css">
.stress{
color:red;
.setgreen{
color:green;
}
</style>
</head>
<body>
<div><img src="tp/1.jpeg"></div>
</body>
</html>
