/* Slideshow layer */
.slideshow-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    contain: layout style paint;
}

.slideshow-layer picture {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    animation: slideshow 20s linear infinite;
}

.slideshow-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slideshow-layer picture:nth-child(1) {
    animation-delay: 0s;
}

.slideshow-layer picture:nth-child(2) {
    animation-delay: 5s;
}

.slideshow-layer picture:nth-child(3) {
    animation-delay: 10s;
}

.slideshow-layer picture:nth-child(4) {
    animation-delay: 15s;
}

@keyframes slideshow {
    0%, 100% {
        opacity: 0;
    }
    1.25%, 23.75% {
        opacity: 0.65;
    }
    25% {
        opacity: 0;
    }
}