Unfortunately, the background-image cannot be animated with keyframes in the following way:
@keyframes kick{
0%{background-image: url(images/img-man-1.png);}
25%{background-image: url(images/img-man-2.png);}
50%{background-image: url(images/img-man-3.png);}
75%{background-image: url(images/img-man-4.png);}
100%{background-image: url(images/img-man-5.png);}
}
.img-man{
animation: kick 1.2s;
animation-play-state: running;
animation-iteration-count: infinite;
}
If you're looking for a method to achieve this effect using CSS3 or jQuery if necessary, please let me know.