.thumbnail{position:relative;overflow:hidden}.caption{position:absolute;top:-100%;right:0;background:rgba(205,204,204,0.60);width:100%;height:100%;padding:2% !important;text-align:center;color:#fff !important;z-index:2;-webkit-transition:all .5s ease-in-out;-moz-transition:all .5s ease-in-out;-o-transition:all .5s ease-in-out;-ms-transition:all .5s ease-in-out;transition:all .5s ease-in-out;font-size:10px}.thumbnail:hover .caption{top:0}