}
    /* Put the heatmap on top of the image */
    #heatmapContainer {
      /* The heatmap will set its own size to the window's via JS */
      z-index: 10;
      position: fixed !important;
      top: 0;
      left: 0;
    }
  </style>
</head>
<body>
  <img id="content" src="media/example/starrynight.jpg" />
  <div id="heatmapContainer"></div>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/localforage/1.8.1/localforage.js"></script>
  <script src="./webgazer.js"></script>
  <script src="./node_mo