canvas {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}

ul {
  display: flex;
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  justify-content: center;
  margin: 0;
  padding: 3rem;
  background: rgba(0,0,0,0.1);

  list-style-type: none;
}