Baseline Less Mixin

typography.less

.font-size-leading(@font-size, @leading-ratio, @baseline-end-ratio) {
	@leading: @baseline*round(@leading-ratio);
	@baseline-end-distance: round(@font-size * @baseline-end-ratio + (@leading - @font-size) / 2);
	font-size: @font-size;
	line-height: @leading;
	padding-top: @baseline-end-distance;
	padding-bottom: @leading - @baseline-end-distance - (@baseline * (@leading-ratio - 1));
}