main.css

canvas {
    height: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
    border: 1px solid;
    top: 20px;
    bottom: 20px;
  }

  footer{
    background-color:#aaa;
    color: black;
    text-align:center;
    padding-top: 20px;
    padding-bottom: 20px;
    font-size: small;
  }


  .allButFooter {
    min-height: calc(100vh - 40px);
  }

  .github-corner:hover .octo-arm {
    animation: octocat-wave 560ms ease-in-out;
  }
  @keyframes octocat-wave {
    0% {
        transform: rotate(0deg);
    }

    20% {
        transform: rotate(-25deg);
    }

    40% {
        transform: rotate(10deg);
    }

    60% {
        transform: rotate(-25deg);
    }

    80% {
        transform: rotate(10deg);
    }

    100% {
        transform: rotate(0deg);
    }
  }