.lb-cancel {
    background: url('/assets/icons/lightbox/loading.gif') no-repeat;
}

.lb-nav a.lb-prev {
    background: url(/assets/icons/lightbox/prev.png) left 48% no-repeat;
}

.lb-nav a.lb-next {
    background: url(/assets/icons/lightbox/next.png) right 48% no-repeat;
}

.lb-data .lb-close {
    background: url(/assets/icons/lightbox/close.png) top right no-repeat;
}