html, body {
  margin: 0;
  padding: 0;
  height: 100dvh;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #fff;
  overflow: hidden;
}

canvas {
  display: block;
  width: min(100vw, 100dvh) !important;
  height: auto !important;
  max-width: 100%;
  max-height: 100%;
  aspect-ratio: 1;
}

main {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  overflow: hidden;
}