body{
    background-color: #2a2a2a;
  }
  
  #canvas{
    position: absolute;
    top: 10px;
    left: 10px;
    z-index:1;
  }
  
  .valueDisplay{
    position: relative;
    color: #e9e9e9;
    margin-left: 720px;
    font-family: Helvetica, Arial, sans-serif;
    font-weight:600;
  }
  
  .Slider{
    -webkit-appearance: none;
    position: relative;
    margin-top: 5px;
    margin-left: 720px;
    margin-bottom: 20px;
  
    background: none;
    height:16px;
    width:250px;
    border-radius: 8px;
    border: 2px solid #e9e9e9;
  }
  
  .Slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width:12px;
    height:12px;
    border-radius: 6px;
    background: #e9e9e9;
    outline: none;
  }