.mosaic-block{float:left;position:relative;overflow:hidden;width:670px;height:420px}.mosaic-backdrop{display:none;position:absolute;top:0;height:100%;width:100%;background:#111}.mosaic-overlay{display:none;z-index:5;position:absolute;width:100%;height:100%;background:#111;filter:alpha(opacity=80);opacity:.8}.circle .mosaic-overlay{opacity:0;filter:alpha(opacity=00);display:none}.fade .mosaic-overlay{opacity:0;filter:alpha(opacity=00)}.bar .mosaic-overlay{bottom:-100px;height:75px}