button.html | Explore in Territory

<html>
  <head>
    <title>Button</title>
  </head>
  <script>
    function showText() {
      text = document.getElementById("text");
      text.style.display = 'block';
    }
  </script>
  <body>
    <h1>Title</h1>
    <button id="button" onclick="showText()">Show Text</button>
    <div id="text" style="display:none">
      The quick brown fox jumped over the lazy dogs.
    </div>
  </body>
</html>

chromium/chrome/test/data/button.html