Example of new Vox style SCSS selectors.

Specificselectors

$m : '.m-site-nav';

#{$m} {
  @extend .clearfix;
  @extend .-font-gotham;
  position: relative;
  text-transform: uppercase;
  width: 100%;
  z-index: 35;
  height: $sticky_nav_height;
  background: #fff;
  border-bottom: 1px solid #CCC;
  &.pinned {
    position: fixed;
    top: 0;
  }
  @media(max-width: $break_medium_small) {
    position: static;
  }
}

#{$m}__wrapper {
  border: 1px solid #ddd;
  border-width: 0 1px;
  height: $sticky_nav_height;
}

#{$m}__loader {
  @include image-replacement(30px, 30px, "/images/polygon/loader-small.gif");
  height: 50px;
  background-position: center center;
  margin: 0 auto;
}