.slider{display:flex;flex-direction:column;align-items:center}.main-image img{width:100%;height:400px;-o-object-fit:cover;object-fit:cover;border:2px solid #ccc;margin-bottom:px}.thumbnails{display:flex;justify-content:center}.thumbnail{width:100px;height:66px;-o-object-fit:cover;object-fit:cover;margin:0 5px;cursor:pointer;border:2px solid transparent;transition:border .3s}.thumbnail:hover{border:2px solid #333}