<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>注册页</title>
</head>
<body>
<form action="api.php" method="post">
<div style="text-align: center">
<label for="username">用户名:</label>
<input
type="text"
id="username"
value="admin"
placeholder="至少六位"
autofocus
required
/>
</div>
<div style="text-align: center">
<label for="password">密码:</label>
<input type="password" id="password" value="123321"
placeholder="至少八位" autofocus required
</div>
<div style="text-align: center">
<label for="email1">邮箱:</label>
<input type="email" id="email1" value="" placeholder="请输入邮箱"
autofocus required
</div>
<div>
<button>提交</button>
</div>
</form>
</body>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
body {
height: 100vh;
width: 100vw;
display: grid;
grid-template-columns: 10em 1fr;
grid-template-rows: 6em 1fr;
margin: 0;
}
body .header {
grid-column-end: span 2;
border-bottom: 1px solid currentColor;
background-color: #efe;
padding: 2em;
display: flex;
align-items: center;
}
body .header div {
margin-left: auto;
}
body .nav {
background-color: #efc;
margin: 0;
padding-top: 1em;
list-style: none;
}
body iframe {
width: calc(100vw - 10em);
height: calc(100vh - 6em);
border-left: 1px solid currentColor;
}
</style>
</head>
<body>
<div class="header">
<h1>后台</h1>
<div>
<span>admin</span>
<a href="">退出后台</a>
</div>
</div>
<ul class="nav">
<li><a href="demo.html" target="content">1</a></li>
<li><a href="demo.html" target="content">2</a></li>
<li><a href="demo.html" target="content">3</a></li>
<li><a href="demo.html" target="content">4</a></li>
<li><a href="demo.html" target="content">5</a></li>
</ul>
<iframe src="" frameborder="2" name="content"></iframe>
</body>
</html>
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