gistfile1.scss

$iterator: 1;
$header-ratio: 4;
$max-heading: 7;
$max-font-size: 40px;

@while $iterator < $max-heading {
  $font-size: ($max-font-size + $header-ratio) - $iterator * $header-ratio;

  h#{$iterator}, .h#{$iterator} {
    @include adjust-font-size-to($font-size);
    font-family: $font-headlines;
  }

  $iterator: $iterator + 1;
}