<!DOCTYPE html> <!-- 定义HTML5文档 -->
<html lang="en"> <!-- 文档语言为英文 -->
<head>
<meta charset="UTF-8"> <!-- 文档编码格式为UTF-8 -->
<title>login</title>
<link rel="stylesheet" type="text/css" href="./css/login.css">
</head>
<body>
<!-- .container>.panel>.content>.switch+form -->
<div class="login_box">
<h2 class="login_h2">LOGIN</h2>
<input class="input_name" type="text" placeholder="请输入用户名">
<input class="input_password" type="text" placeholder="请输入密码">
<button class="button_login">登录</button>
<button class="button_exit">退出</button>
</div>
</body>
</html>
