html, body{
    margin:0px;
    padding:0px;
    background: #000;
  }
  canvas{
    background: #000;
      margin: 50px auto;
      display: block;
  }
  #info{
    position:absolute;
    top:5px;
    left:5px;
    color:#fff;
    font-size:small;
  }