Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.3.0.rc.4)
// Compass (v1.0.0.alpha.18)
// ----

@mixin adjust-each-header($start, $finish, $startingFontSize: 30px, $adjustFont: 3px, $lineHeight: 1.618) {
   @for $i from $start through $finish {
      h#{$i} {
         font-size: $startingFontSize;
         line-height: getValue(($startingFontSize * $lineHeight));
      }
      $startingFontSize: $startingFontSize - $adjustFont;
   }
}

@function getValue($n) {
  @return $n / ($n * 0 + 1);
}

@include adjust-each-header(1, 6);

SassMeister-output.css

h1 {
  font-size: 30px;
  line-height: 48.54;
}

h2 {
  font-size: 27px;
  line-height: 43.686;
}

h3 {
  font-size: 24px;
  line-height: 38.832;
}

h4 {
  font-size: 21px;
  line-height: 33.978;
}

h5 {
  font-size: 18px;
  line-height: 29.124;
}

h6 {
  font-size: 15px;
  line-height: 24.27;
}