.seo-blok-01 #gorsel-1, .seo-blok-01 #gorsel-2 {
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
  visibility: hidden;
  height: auto;
}

.seo-blok-01 #gorsel-1.show {
  opacity: 1;
  visibility: visible;
}

.seo-blok-01 #gorsel-2.show {
  opacity: 1;
  visibility: visible;
}

.seo-blok-01 #gorsel-1:not(.show),.seo-blok-01 #gorsel-2:not(.show) {
  opacity: 0; 
  visibility: hidden;
  height: 0;
  overflow: hidden;
}