@function make-dot-shadow($color, $width, $height) {
  $val: 1px 0 $color;
  $x: 3;
  $y: 0;
  $w: $width / 1px;
  $h: $height / 1px;

  @while $y < $h {
    @if $x > $w {
      $x: 1;
      $y: $y + 2;
    } @else {
      $val: #{$val}, #{$x}px #{$y}px #{$color};
      $x: $x + 2;
    }
  }

  @return $val;
}