* {
  margin: 0;
  padding: 0;
  background: #111;
  color: #eee;
  font-family: 'Roboto', sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

canvas {
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  z-index: -1;
}