/// Returns the border size for the specified size name
/// @param {String} $size [xs]
/// @return {List} The border value.

@function border-size($size: xs) {
  $fetched-value: map-get($border-size-data, $size);

  @if type-of($fetched-value) == number {
    @return $fetched-value;
  } @else {
    @error 'Border size `#{$size}` not found. Available variants: #{$border-size-data}';
  }
}