.maxwidth-banner .banners-big__item{
  position: relative;
}
.maxwidth-banner .banners-big__item::before{
  content:"";
  position:absolute;
  inset:0;
  background: rgba(0,0,0,.45);
  z-index: 1;
  pointer-events:none;
}
.maxwidth-banner .banners-big__item .maxwidth-theme{
  position: relative;
  z-index: 2;
}