<html lang=“en”> <head>

<title></title>

<meta charset="utf-8">
<meta name="viewport" content="initial-scale=1, minimum-scale=1, width=device-width">

<style>
  * {
    font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen-Sans,Ubuntu,Cantarell,"Helvetica Neue",sans-serif;
    font-size: 15px;
    color: #111;
  }
  main {
    max-width: 500px;
    padding: 0 30px;
    margin: auto;
    margin-top: 30%;
  }
</style>

</head> <body>

<main>
  <!-- @container -->
</main>

</body> </html>