z-index with Sass maps
$zindex: (
subnav : 9003,
search-bar-icon : 9002,
search-bar : 9001,
mega-menu : 9000,
featured-box-cta : 8999,
testimonial-content : 401,
testimonial-image : 400,
change-your-world : 200
);
.something {
z-index: map-get($zindex, change-your-world);
}