<!DOCTYPE html>
<html lang="zh-CN">
<head>
<!-- 必须的 meta 标签 -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.staticfile.org/twitter-bootstrap/5.1.1/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.staticfile.org/twitter-bootstrap/5.1.1/js/bootstrap.bundle.min.js"></script>
<title>登录</title>
</head>
<body class="bg-dark bg-opacity-75">
<div class="container vh-100">
<div class="row vh-100">
<div class="col-4 m-auto p-5 justify-content-center bg-white rounded">
<form class="" role="form">
<div class="mb-3">
<label class="form-label mb-1 text-black-50">用户名：</label>
<input type="text" class="form-control">
</div>
<div class="mb-4">
<label class="form-label mb-1 text-black-50">密码：</label>
<input type="password" class="form-control">
</div>
<div class="mb-1">
<button type="submit" class="form-control btn-primary">登录</button>
</div>
</form>
</div>
</div>
</div>
</body>
</html>
