to CSS Compiler
@mixin box-shadow($x: 0, $y: 0, $blur: 1px, $alpha: 1) {
	$val: $x $y $blur rgba(0, 0, 0, $alpha);
	-webkit-box-shadow: $val;
	-moz-box-shadow:    $val;
	box-shadow:         $val;
}
.box {
	$base: #f938ab;
	color:        saturate($base, 5%);
	border-color: lighten($base, 30%);
	div {
		@include box-shadow(0, 0, 5px, 0.4);
	}
}
Input (Dart Sass) Length: 0

		
Output (CSS) Length: 0