#slideshow {
    position: relative;
    margin: 0 auto 0 auto;
    width: 675px;
    height: 450px;
}

#slideshow img {
    position: absolute;
    padding: 10px 0 0 0;
    top:0;
    left:0;
    z-index:8;
    opacity: 0.0;
    width: 675px;
    height: 450px;
}

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

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