#hiroshi-shooting-area {
  background: #000;
  width: 100%;
  line-height: 0;
}
#hiroshi-shooting-wrapper {
  width: 100%;
  max-width: 800px;
}
#hiroshi-shooting-wrapper canvas {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  touch-action: none;
}