$important: false) {\n // Cache $fs unit\n $fs-unit: if(type-of($fs) == \"number\", unit($fs), false);\n\n // Add !important suffix if needed\n $rfs-suffix: if($important, \" !important\", \"\");\n\n // If $fs isn't a number (like inherit) or $fs has a unit (not px or rem, like 1.5em) or $ is 0, just print the value\n @if not $fs-unit or $fs-unit != \"\" and $fs-unit != \"px\" and $fs-unit != \"rem\" or $fs == 0 {\n font-size: #{$fs}#{$rfs-suffix};\n }\n @else {\n // Remove unit from $fs for...