html {
}

body {
  background: #000;
}

canvas {
  max-width: 100vw;
  max-height: 50vh;
}

.canvas-container {
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.spacer {
  width: 100%;
  height: 100vh;
  background: transparent;
}