Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.3.7)
// Compass (v1.0.0.alpha.18)
// ----

$base-font-size: 1em;
$font-size-h1 : $base-font-size * 2.25; // 16 * 2.25  = 36px
$font-size-h2 : $base-font-size * 2;    // 16 * 2     = 32px
$font-size-h3 : $base-font-size * 1.75; // 16 * 1.75  = 28px
$font-size-h4 : $base-font-size * 1.5;  // 16 * 1.5   = 24px
$font-size-h5 : $base-font-size * 1.25; // 16 * 1.25  = 20px

@for $i from 1 through 5
  h#{$i}{
    font-size: $font-size-h${$i};
  }

SassMeister-output.css

Invalid CSS after "...e: $font-size-h": expected ";", was "${$i};"