css3 image crossfade (no javascript)

Question

I\'m pretty sure it\'s possible to do a css only image crossfade using the new css animation features. My requirements are that it should work for arbitrary number of images

Answer 1

This article is the best I've seen for doing an effect like this.

http://tympanus.net/codrops/2012/01/02/fullscreen-background-image-slideshow-with-css3/

They use spans, animation and the :nth-child property to achieve a crossfade between the background images. Pretty awesome.

.cb-slideshow li span {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0px;
    left: 0px;
    color: transparent;
    background-size: cover;
    background-position: 50% 50%;
    background-repeat: none;
    opacity: 0;
    z-index: 0;
    animation: imageAnimation 36s linear infinite 0s;
}


    .cb-slideshow li:nth-child(1) span {
    background-image: url(../images/1.jpg)
}
.cb-slideshow li:nth-child(2) span {
    background-image: url(../images/2.jpg);
    animation-delay: 6s;
}
.cb-slideshow li:nth-child(3) span {
    background-image: url(../images/3.jpg);
    animation-delay: 12s;
}
.cb-slideshow li:nth-child(4) span {
    background-image: url(../images/4.jpg);
    animation-delay: 18s;
}
.cb-slideshow li:nth-child(5) span {
    background-image: url(../images/5.jpg);
    animation-delay: 24s;
}
.cb-slideshow li:nth-child(6) span {
    background-image: url(../images/6.jpg);
    animation-delay: 30s;
}

.cb-slideshow li:nth-child(2) div {
    animation-delay: 6s;
}
.cb-slideshow li:nth-child(3) div {
    animation-delay: 12s;
}
.cb-slideshow li:nth-child(4) div {
    animation-delay: 18s;
}
.cb-slideshow li:nth-child(5) div {
    animation-delay: 24s;
}
.cb-slideshow li:nth-child(6) div {
    animation-delay: 30s;
}