body {
  text-align: center;
  min-height: 100vh;
  background: black;
  color: whitesmoke;
  display: flex;
  overflow: hidden;
}
h1 {
  margin: auto;
  font-family: Gorditas;
  font-size: 6rem;
}

canvas {
  position: absolute;
  left: 0;
  top: 0;
  opacity: 1;
  pointer-events: none;
}
.td-wrapper,
canvas {
  transition: opacity 2s;
}
.td-wrapper:not(.td-hide) + canvas,
.td-hide {
  opacity: 0;
}