<!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>504 Gateway Timeout</title>
<link rel="stylesheet" href="custom_error.css">
</head>
<body>
<div class="center">
<img src="custom_504.png" alt="504">
</div>
</body>
</html>