/**
 * Lightbox2: imágenes desde CDN (jsDelivr) para evitar 404 de ../images/
 */
body:after {
    content: url("https://cdn.jsdelivr.net/npm/lightbox2@2.11.3/dist/images/close.png")
             url("https://cdn.jsdelivr.net/npm/lightbox2@2.11.3/dist/images/loading.gif")
             url("https://cdn.jsdelivr.net/npm/lightbox2@2.11.3/dist/images/prev.png")
             url("https://cdn.jsdelivr.net/npm/lightbox2@2.11.3/dist/images/next.png") !important;
}

.lb-cancel {
    background: url("https://cdn.jsdelivr.net/npm/lightbox2@2.11.3/dist/images/loading.gif") no-repeat !important;
}

.lb-nav a.lb-prev {
    background: url("https://cdn.jsdelivr.net/npm/lightbox2@2.11.3/dist/images/prev.png") left 48% no-repeat !important;
}

.lb-nav a.lb-next {
    background: url("https://cdn.jsdelivr.net/npm/lightbox2@2.11.3/dist/images/next.png") right 48% no-repeat !important;
}

.lb-data .lb-close {
    background: url("https://cdn.jsdelivr.net/npm/lightbox2@2.11.3/dist/images/close.png") top right no-repeat !important;
}