chromium/chrome/test/data/web_app_shortcuts/shortcuts.html

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <!-- https://www.w3.org/TR/appmanifest/#shortcut-items -->
  <title>Shortcuts</title>
  <link rel="manifest" href="shortcuts.json">
  <link rel="icon" href="red-192.png">
  <script>
    window.onload = () => {
      if ('serviceWorker' in navigator) {
        navigator.serviceWorker.register("service_worker.js");
      }
      if (window.location.hash.length > 0) {
        const selected = document.getElementById(window.location.hash.substring(1));
        if (selected)
          selected.classList += 'selected';
      }
    };
  </script>
  <style>
    .selected {
      font-style: italic;
    }
  </style>
</head>
<body>
  <h1>Shortcuts</h1>
  <h2 id="one">One</h2>
  <h2 id="two">Two</h2>
  <h2 id="three">Three</h2>
  <h2 id="four">Four</h2>
  <h2 id="five">Five</h2>
  <h2 id="six">Six</h2>
</body>
</html>