#imagerotator {
    position: relative;
}

#imagerotator .picture {
    position: absolute;
}

#imagerotator .picture:nth-of-type(1){
    animation-name:fader;
    animation-delay:3s;
    animation-duration:1.5s;
    z-index:20;
}
#imagerotator .picture:nth-of-type(2){
    z-index:10;
}
#imagerotator .picture:nth-of-type(n+3){
    display:none;
}
@keyframes fader{
    from{opacity:1.0;}
    to{opacity:0.0};
}