#slideshow {
    position:relative;
    height:350px;
	margin: 1em;
	text-align:center;
	display: block;
	margin-left: auto;
	margin-right: auto; 
}

#slideshow IMG {
    position:absolute;
    top:0;
    left:0;
    z-index:8;
    opacity:0.0;
	text-align:center;
}

#slideshow IMG.active {
    z-index:10;
    opacity:1.0;
}

#slideshow IMG.last-active {
    z-index:9;
}