body,
html,
canvas {
  margin: 0;
  padding: 0;
  background-color: #111;
  overflow: hidden;
}

canvas {
  background-color: transparent;
  position: relative;
  z-index: 2;
}

.text {
  position: absolute;
  left: 0;
  top: 20px;
  width: 100%;
  text-align: center;
  font-size: 3.7vw;
  color: #fff;
  z-index: 1;
  opacity: 0.2;
}