#image-navigation .navi-image { position:relative;}
#image-navigation .navi-image a { display:block; }
#image-navigation .navi-image a {
	position: absolute;
	margin:0 auto;
	top: 0;
	left: 0;
	z-index: 8;
}
#image-navigation .navi-image a.active { z-index:10; }
#image-navigation .navi-image a.last-active { z-index:9; }