.backgrounds {
    width: 100%;
    height: 100%;
    position: fixed;
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
    z-index: -1;
}

.overlay:after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    top: 0;
    background: var(--kss-page-background-color);
    opacity: var(--kss-body-bg-img-opacity);
}

.backgrounds .background {
    width: 100%;
    height: 100%;
    background-size: cover;
    position: absolute;
    left: 0;
    top: 0;
    background-attachment: fixed;
}