@mixin setImageHeight($aspect-ratio: (1, 1)) {
  position: relative;
  &:after {
    $height: nth($aspect-ratio, 2);
    $width: nth($aspect-ratio, 1);
    padding-bottom: $height/$width * 100%;
    display: block;
    content: '';
  }
  img {
    position: absolute;
    top: 0;
    bottom: 0;
    right: 0;
    left: 0;
  }
}