.room-light {
  grid-area: 1 / 1;
  align-self: end;
  height: 100%;
  justify-self: center;
  
  position: absolute;
  
  pointer-events: none;
  z-index: 10;
  animation: room-blink 2s infinite;
}

@keyframes room-blink {
  0%, 100% { opacity: 0.8; }
  30%, 70% { opacity: 0.9; }
  50% { opacity: 1; }
}