.overlay {
  position: relative;
}

.overlay::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('../00-img-fav-logo-heros-overlay-zerti/bg-overlay.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.1;
  pointer-events: none;
  z-index: 1;
}

.overlay > * {
  position: relative;
  z-index: 2;
}