.img_wamp,.photograph{width:100%;height:100%}.img_wamp{position:relative}.bj{width:100%;height:95%}.bt_wamp{position:absolute;width:50%;height:50%;left:0;right:0;top:0;bottom:0;margin:auto}.float_img{width:100%;height:100%}.float_img,.pt{position:absolute}.pt{width:15px;height:15px;margin-left:-7.5px;margin-top:-7.5px;border-radius:15px;cursor:pointer}