the minimum font size for $fs\n      $fs-min: $rfs-base-font-size + divide($fs - $rfs-base-font-size, $rfs-factor);\n\n      // Calculate difference between $fs and the minimum font size\n      $fs-diff: $fs - $fs-min;\n\n      // Base font-size formatting\n      $min-width: if($rfs-font-size-unit == rem, #{divide($fs-min, $rfs-rem-value)}rem, #{$fs-min}px);\n\n      // Use `vmin` if two-dimensional is enabled\n      $variable-unit: if($rfs-two-dimensional, vmin, vw);\n\n      // Calculate the variable...