html, body {
    margin: 0;
    padding: 0;
    overflow: hidden;
  }
  canvas {
    display: block;
  }

  .greyed {
      background-color: gray !important;
  }
  
  #colorButtons {
    display: flex;
    justify-content: space-around;
    background-color: #212121;
    padding: 20px;
  }
  
  .btn {
    border: 5px solid #212121;
    padding: 70px;
  }
  
  .btn:focus{
    border: 5px solid #fff;
    outline: none;
  }
  
  #redBtn {
    background-color: red;
  }
  
  #yellowBtn {
    background-color: yellow;
  }
  
  #greenBtn {
    background-color: green;
  }
  
  #blueBtn {
    background-color: blue;
  }
  
  #orangeBtn {
    background-color: #e89433;
  }

  .resetBtn {
      font-size: 50px;
      border: none;
      padding: 40px;
      background-color: transparent;
      background-size: contain;
      background-repeat: no-repeat;
      background-image: url("refresh.png");
  }