@media all and (min-width: 800px) {

  .fancybox-thumbs {
    top: auto;
    width: auto;
    bottom: 0;
    left: 0;
    right : 0;
    height: 95px;
    padding: 10px;
    box-sizing: border-box;
    background: rgba(0, 0, 0, 0.3);
  }
  
  .fancybox-show-thumbs .fancybox-inner {
    right: 0;
    bottom: 95px;
  }
}