.widget_lightgallery_skin { position:relative; overflow:hidden; }

.widget_lightgallery_skin #aniimated-thumbnials .gallery_item { position:relative; width:25%; overflow:hidden; float:left; display:inline-block; }
.widget_lightgallery_skin #aniimated-thumbnials .gallery_item .thumbnail { width:100%; float:left; }

.widget_lightgallery_skin #aniimated-thumbnials .gallery_item .hover_bg { position:absolute; top:0px; left:0px; width:100%; height:100%; background:#000; opacity: 0.4; filter: alpha(opacity=40); display:none; }
.widget_lightgallery_skin #aniimated-thumbnials .gallery_item .hover_zoom { position:absolute; top:50%; left:50%; margin-top:-10px; margin-left:-10px; display:none; }