#gallery-view .img-list li.hidden-item {
    visibility: visible!important;
    display: inline-block;
    opacity: 1;
    transform: scale(1);
}
#sb_gallery_list_container > li:nth-child(n) > a{
width: 100%;
    position: relative;
    display: block;
    padding-top: 100%;
    border-radius: 4px;
    overflow: visible;
}