* {
      margin: 0;
      padding: 0;
    }

    html, body {
      height: 100%;
      width: 100%;
    }

    #github-iframe {
      position: fixed;
      left: 32px;
      top: 32px;
    }

    #area-render {
      position: fixed;
      width: 320px;
      height: 160px;
      right: 4px;
      bottom: 4px;
      border: dashed 1px #ccc;
    }