/* some basic styling for the webvis canvas */
  html,
  body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-image: linear-gradient(to bottom, #dddddd 85%, #cccccc 100%);
  }

  td {
    width: 200px;
    height: 200px;
  }