.section.banner-nav::before {
    background-color: rgba(0,0,0,.4);
}
.section--dark .featuredblocks-grid-e .featuredblock__bgImage:before {
    background: rgba(0,0,0,.4);
}

.featuredblocks-grid-e .featuredblock__bgImage:before {
    content: "";
    opacity: 0.8;
    position: absolute;
    height: 100%;
    width: 100%;
}