body {
  margin: 0;
  overflow: hidden;
  height: fit-content;
}

.controls {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
}

canvas {
  position: absolute;
}
svg {
  position: absolute;
  display: none;
}

button {
  position: fixed;
  left: 50%;
  bottom: 30px;
  transform: translateX(-50%);
  width: 220px;
  height: 48px;
  background: #ee5282;
  color: #fff;
  border: none;
  border-radius: 8px;
  z-index: 2;
  font-family: sans-serif;
  font-size: 20px;
  cursor: pointer;
}