@use 'sass:math';

@mixin vbToEmRatio($viewbox) {

	$width: 	nth($viewbox,3) - nth($viewbox,1);
	$height: 	nth($viewbox,4) - nth($viewbox,2);

	$result: math.div($width, $height) * 1em;

	// no result if size is kept unchanged => no result = no compile css = less kb
	@if $result != 1em {
		width: $result;
	}
}