.fliphover-block{float:left;position:relative;overflow:hidden;width:148px;height:99px;margin:10px;border:1px solid #fff;-webkit-box-shadow:0 1px 3px rgba(0,0,0,0.5)}.fliphover-overlay{z-index:5;position:absolute;width:100%;height:100%;background:#111;top:0;left:-148px;background:white;filter:alpha(opacity=80);opacity:.8;width:85%}.bar4 .mosaic-overlay:hover{opacity:1;-ms-filter:"alpha(opacity=80)";filter:alpha(opacity=80)}