<html>
  <head>
    <meta charset="utf-8" />
    <title>Hello, world!</title>
    <meta name="viewport" content="initial-scale=1.0" />
  </head>
  <body style="height: 100%" onmousemove="window.location.reload()">
    <p>Hello, world!</p>
  </body>
</html>
