gameyfin/frontend/src/app/components/library-overview/library-overview.component.css

.fullscreen-overlay {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.15);
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}