.slider-overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.4);
  z-index: 1;
  pointer-events: none;
}

.rs-slide,
.rs-slide .nwmbslider {
  position: relative;
}

.rs-layer,
.rs-slide a,
.nwmbslider {
  z-index: 2;
  position: relative;
}