div.show_full_photo, div.show_next_photo, div.show_prev_photo { width:40px; height:40px; background-color:#999999; opacity: 0.7;  z-index:500; cursor:pointer; box-shadow: 0px 0px 4px #666666; border-radius: 20px; background-repeat:no-repeat;}
div.show_full_photo {position:absolute; top:0px; right:-20px;  background-image:url(../../images/full_photo_button.png); background-size: 80% 80%; background-color:#ffffff; background-position: center; }
div.show_next_photo { position:absolute; top:45%; right:-20px; background-image:url(../../images/next_photo_button.png); }
div.show_prev_photo {position:absolute; top:45%; left:-20px; background-image:url(../../images/prev_photo_button.png); }
div.show_full_photo:hover, div.show_next_photo:hover, div.show_prev_photo:hover { background-color:#ffffff; opacity: 1; }
div.show_full_photo:active, div.show_next_photo:active, div.show_prev_photo:active { background-color:#ffffff; opacity: 0.5; box-shadow: 0px 0px 0px #666666;}