bhouseWeb_static/themes/hugo-lamp/static/css/templates/_home.scss

.overly {
	position: relative;
  
	&:before {
	  content: '';
	  background: rgba(0, 0, 0, 0.2);
	  position: absolute;
	  top: 0;
	  left: 0;
	  right: 0;
	  bottom: 0;
	}
}