Generated by SassMeister.com.

SassMeister-input-HTML.html

<h1>Heading one</h1>
<h2>Heading two</h2>
<h3>Heading three</h3>
<h4>Heading four</h4>

SassMeister-input.scss

// ----
// Sass (v3.3.14)
// Compass (v1.0.1)
// Modular Scale (v2.0.5)
// ----

@import "modular-scale";

$ms-base: 1rem;
$ms-ratio: $fourth;

body {
  foo: ms-list(-2, 2, $ms-base, $ms-ratio);
  foo: ms(0);
}
h1 {
  font-size:ms(4);
}

SassMeister-output.css

body {
  foo: 0.5625000003rem 0.7500000002rem 1rem 1.333333333rem 1.7777777769rem;
  foo: 1rem;
}

h1 {
  font-size: 3.160493824rem;
}

SassMeister-rendered.html

<h1>Heading one</h1>
<h2>Heading two</h2>
<h3>Heading three</h3>
<h4>Heading four</h4>