/* app/assets/stylesheets/lightbox_override.css */
.lb-next, .lb-prev {
  background-size: contain;
  background-repeat: no-repeat;
}

.lb-next {
  background-image: url("/assets/lightbox/next.png") !important;
}
.lb-prev {
  background-image: url("/assets/lightbox/prev.png") !important;
}

.lb-prev, .lb-next {
  filter: drop-shadow(0 0 5px #00ff00) drop-shadow(0 0 10px #00ff00);
}