coming-soon.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>Coming Soon</title>
  <link rel="stylesheet" href="style.css">
</head>
<body>
  <div>
    <h1>Coming soon...</h1>
    
    <div class="info">
      <h2>You'll be redirected to the main page in <n class="countdown">5</n> seconds</h2>
    </div>

  </div>

  <script src="./coming-soon.js"></script>
</body>
</html>