.gallery-paralax-item{
    position: sticky;
    top:0;
    height: 100vh;
    width: 100%;
}

.gallery-paralax-item img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

@media screen and (max-width: 992px) {
  .gallery-paralax-item {
    height: 100vh;
    position: relative;
    top: 0;
  }
}