SASS: font-size mixin.Get px and rem-based "font-size: value" set. Foundation framework's rem-calc() function is required.

gistfile1.sass

@mixin font-size($sizeValue: 1.6, $force: false) {
	$unit: unit($sizeValue);
	@if $unit == "px" {
		$sizeValue: strip-unit($sizeValue);
		@if $force == true {
			font-size: $sizeValue + px !important;
			font-size: rem-calc($sizeValue) !important;
		} @else {
			font-size: $sizeValue + px;
			font-size: rem-calc($sizeValue);
		}
	}
	@else {
		@if $force == true {
			font-size: ($sizeValue * 16) + px !important;
			font-size: $sizeValue + rem !important;
		} @else {
			font-size: ($sizeValue * 16) + px;
			font-size: $sizeValue + rem;
		}
	}
}