<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>app</title>
<script src="https://cdn.tailwindcss.com"></script>
</head>
<body class="bg-gray-100 flex items-center justify-center h-screen">
<div>hello world</div>
</body>
</html>