.scroll-container {
  position: relative;
  height: 400vh;
}

.stage {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stage canvas {
  display: block;
  width: 100%;
  max-width: 800px;
  aspect-ratio: 1 / 1;
}