under version 3 of the GNU General Public License into a single
combined work, and to convey the resulting work.  The terms of this
License will continue to apply to the part which is the covered work,
but the work with which it is combined will remain governed by version
3 of the GNU General Public License.

  14. Revised Versions of this License.

}\n    @else {\n      @error \"`#{$rfs-font-size-unit}` is not a valid unit for $rfs-font-size-unit. Use `px` or `rem`.\";\n    }\n\n    // Only add media query if font-size is bigger as the minimum font-size\n    // If $rfs-factor == 1, no rescaling will take place\n    @if $fs > $rfs-base-font-size and $enable-responsive-font-sizes {\n      $min-width: null;\n      $variable-unit: null;\n\n      // Calculate minimum font-size for given font-size\n      $fs-min: $rfs-base-font-size + ($fs - $rfs-base-font-size)...