/**
 * Removes the unit from a value if it is unitless.
 *
 * @param {Number|String} $value - The value to strip the unit from.
 * @return {Number} - The value without its unit.
 */
@function strip-unit($value) {
    @if meta.type-of($value) == "number" and not math.is-unitless($value) {
       @return math.div($value, math.div($value, 1));
    } @else {
       @return $value;
    }
}