<!doctype html>
<html>
<head>
  <title>Long load</title>
  <link rel="stylesheet" charset="UTF-8" type="text/css" media="screen" href="simple.css"/>
  <style type="text/css">
  body {
    background: white;
  }

  div {
    font-size: 4em;
  }

  div > span {
     text-decoration: underline;
  }
  </style>
</head>
<body>
  Time passes:
  <script type="application/javascript">
    "use strict";
    for (let i = 0; i < 5000; i++) {
      document.write("<br>...");
    }
  </script>
</body>
</html>
