<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>表单</title>
</head>
<body>
<form>
<fieldset>
<legend>登录</legend>
<label for="username">用户名</label>
<input type="email" id="username" name="username" placeholder="用户名" tabindex="1" required="true"/>
<label for="password">密码</label>
<input type="email" id="password" name="password" placeholder="密码" tabindex="2" required="true"/>
<label for="staySigned">
<input type="checkbox" id="staySigned" name="staySigned" tabindex="3"/>
记住我
</label>
<input type="submit" value="登录" tabindex="4"/>
</fieldset>
</form>
</body>
</html>
参考资料：
