.unideb-gallery-loading-wrapper {
  position: fixed;
  z-index: 99999;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  background:  linear-gradient(rgba(0,0,0,.8), rgba(0,0,0,.8));
  border-radius: 0.5rem;
}

.unideb-gallery-loading.active {
  background: url("../images/waiting.svg");
  height: 30px;
  width: 30px;
  margin: 10px;
  background-size: cover;
  animation: spinner 2s linear infinite;
}

@keyframes spinner {
  to {transform: rotate(360deg);}
}