Drop support for Compass

12 files changed, 7 insertions, 1246 deletions

diff --git a/README.md b/README.md
index 8463f2c..c808c56 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ This Sass port currently adds:
 
 * Vertical rhythm mixins: Allowing you to alter the font-size, line-height and margins in Normalize’s output without hacking the library.
 * Optional Eyeglass support.
-* Several ready-to-fork versions that integrate typography Sass modules like Typey, style guides built with KSS, or the legacy Compass module.
+* Several ready-to-fork versions that integrate typography Sass modules like Typey, or style guides built with KSS.
 
 # normalize.css v5
 
@@ -44,7 +44,7 @@ Install using one of the following methods:
 * Install with [npm](http://npmjs.org/): `npm install --save normalize-scss`
 * Install with [Bower](http://bower.io/): `bower install --save normalize.scss`
 * Install with [Ruby Gem](https://rubygems.org/gems/normalize-scss): `gem install normalize-scss`<br>
-  and, if using Compass, add `require "normalize-scss"` to your config.rb file. Note: if you want to alter the _normalize.scss file after installation (see "how to use it" below), you can use the `gem list --details normalize-scss` command to show you where the normalize-scss files were installed.
+  and, optionally, add `require "normalize-scss"` to your config.rb file. Note: if you want to alter the _normalize.scss file after installation (see "how to use it" below), you can use the `gem list --details normalize-scss` command to show you where the normalize-scss files were installed.
 
 ## How to use it
 
@@ -55,7 +55,6 @@ You can use the Sass port of Normalize in one of several methods, following the
 __Approach 1:__ Download and use normalize-scss as a starting point for your own project's base Sass, customising the values to match the design's requirements. (The best approach, _IMO_.)
   1. Copy the normalize-scss files to your sass directory so that you can alter it as you include it in your project. To aid with this method, normalize-scss includes several ready-made "fork" versions:
     * [fork-versions/default](fork-versions/default) - Fork for libSass or Ruby Sass
-    * [fork-versions/deprecated-compass](fork-versions/deprecated-compass) - Fork with Compass ([deprecated](https://github.com/Compass/compass/issues/1999))
     * [fork-versions/typey](fork-versions/typey) - Fork with Typey
     * [fork-versions/typey-chroma-kss](fork-versions/typey-chroma-kss) - Fork with Typey, Chroma and KSS
 
diff --git a/fork-versions/deprecated-compass/README.md b/fork-versions/deprecated-compass/README.md
deleted file mode 100644
index a32d741..0000000
--- a/fork-versions/deprecated-compass/README.md
+++ /dev/null
@@ -1,5 +0,0 @@
-# Fork-able normalize-scss<br> for Ruby Sass and Compass 1.0
-
-1. Copy these files to your Sass project.
-2. Start forking by altering/moving Sass variables found in `_variables.scss`.
-3. Edit any CSS ruleset directly rather than overriding it in later Sass.
diff --git a/fork-versions/deprecated-compass/_normalize.scss b/fork-versions/deprecated-compass/_normalize.scss
deleted file mode 100644
index 0ab446c..0000000
--- a/fork-versions/deprecated-compass/_normalize.scss
+++ /dev/null
@@ -1,657 +0,0 @@
-/*! normalize-scss | MIT/GPLv2 License | bit.ly/normalize-scss */
-
-@import "variables";
-// After the default variables are set, import the required Compass partials.
-// Feel free to move these lines to your own initialization partial.
-@import "compass/css3/box-sizing";
-@import "compass/typography/vertical_rhythm";
-
-// If we've customized any font variables, we'll need extra properties.
-@if $base-font-size != 16px
-  or $base-line-height != 24px
-  or $rhythm-unit != 'em'
-  or $h1-font-size != 2    * $base-font-size
-  or $h2-font-size != 1.5  * $base-font-size
-  or $h3-font-size != 1.17 * $base-font-size
-  or $h4-font-size != 1    * $base-font-size
-  or $h5-font-size != 0.83 * $base-font-size
-  or $h6-font-size != 0.67 * $base-font-size
-  or $indent-amount != 40px {
-  $normalize-vertical-rhythm: true !global;
-}
-
-/* Document
-   ========================================================================== */
-
-/**
- * 1. Establish a vertical rhythm unit using $base-font-size, $base-line-height,
- *    and $rhythm-unit variables.
- * 2. Correct old browser bug that prevented accessible resizing of text when
- *    root font-size is set with px or em.
- * 3. Correct the line height in all browsers.
- */
-
-@include establish-baseline();
-
-/**
- * 1. Change the default font family in all browsers (opinionated).
- * 2. Prevent adjustments of font size after orientation changes in
- *    IE on Windows Phone and in iOS.
- */
-
-html {
-  // Show a background image that can be used to debug your alignments.
-  // @include debug-vertical-alignment();
-  font-family: $base-font-family; /* 1 */
-  -ms-text-size-adjust: 100%; /* 2 */
-  -webkit-text-size-adjust: 100%; /* 2 */
-}
-
-/* Sections
-   ========================================================================== */
-
-/**
- * Remove the margin in all browsers (opinionated).
- */
-
-body {
-  margin: 0;
-}
-
-/**
- * Add the correct display in IE 9-.
- */
-
-article,
-aside,
-footer,
-header,
-nav,
-section {
-  display: block;
-}
-
-/**
- * Correct the font size and margin on `h1` elements within `section` and
- * `article` contexts in Chrome, Firefox, and Safari.
- */
-
-h1 {
-  /* Set the font-size and line-height while keeping a proper vertical rhythm. */
-  @if $normalize-vertical-rhythm {
-    @include adjust-font-size-to( $h1-font-size );
-  }
-  @else {
-    font-size: if($rhythm-unit == "px", $h1-font-size, unquote("#{$h1-font-size / $base-font-size}#{$rhythm-unit}"));
-  }
-
-  /* Set 1 unit of vertical rhythm on the top and bottom margins. */
-  @include leader(1, $h1-font-size);
-  @include trailer(1, $h1-font-size);
-}
-
-@if $normalize-vertical-rhythm {
-  h2 {
-    @include adjust-font-size-to( $h2-font-size );
-    @include leader(1, $h2-font-size);
-    @include trailer(1, $h2-font-size);
-  }
-
-  h3 {
-    @include adjust-font-size-to( $h3-font-size );
-    @include leader(1, $h3-font-size);
-    @include trailer(1, $h3-font-size);
-  }
-
-  h4 {
-    @include adjust-font-size-to( $h4-font-size );
-    @include leader(1, $h4-font-size);
-    @include trailer(1, $h4-font-size);
-  }
-
-  h5 {
-    @include adjust-font-size-to( $h5-font-size );
-    @include leader(1, $h5-font-size);
-    @include trailer(1, $h5-font-size);
-  }
-
-  h6 {
-    @include adjust-font-size-to( $h6-font-size );
-    @include leader(1, $h6-font-size);
-    @include trailer(1, $h6-font-size);
-  }
-}
-
-/* Grouping content
-   ========================================================================== */
-
-@if $normalize-vertical-rhythm {
-  /**
-   * Set 1 unit of vertical rhythm on the top and bottom margin.
-   */
-
-  blockquote {
-    @include output-rhythm(margin, rhythm(1) $indent-amount);
-  }
-
-  dl,
-  ol,
-  ul {
-    @include output-rhythm(margin, rhythm(1) 0);
-  }
-
-  /**
-   * Turn off margins on nested lists.
-   */
-
-  ol,
-  ul {
-    ol,
-    ul {
-      margin: 0;
-    }
-  }
-
-  dd {
-    margin: 0 0 0 $indent-amount;
-  }
-
-  ol,
-  ul {
-    padding: 0 0 0 $indent-amount;
-  }
-}
-
-/**
- * Add the correct display in IE 9-.
- */
-
-figcaption,
-figure {
-  display: block;
-}
-
-/**
- * Add the correct margin in IE 8.
- */
-
-figure {
-  @include output-rhythm(margin, rhythm(1) $indent-amount);
-}
-
-/**
- * 1. Add the correct box sizing in Firefox.
- * 2. Show the overflow in Edge and IE.
- */
-
-hr {
-  @include box-sizing(content-box); /* 1 */
-  height: 0; /* 1 */
-  overflow: visible; /* 2 */
-}
-
-/**
- * Add the correct display in IE.
- */
-
-main {
-  display: block;
-}
-
-@if $normalize-vertical-rhythm {
-  /**
-   * Set 1 unit of vertical rhythm on the top and bottom margin.
-   */
-
-  p,
-  pre {
-    @include output-rhythm(margin, rhythm(1) 0);
-  }
-}
-
-/**
- * 1. Correct the inheritance and scaling of font size in all browsers.
- * 2. Correct the odd `em` font sizing in all browsers.
- */
-
-%monospace {
-  font-family: monospace, monospace; /* 1 */
-  font-size: 1em; /* 2 */
-}
-
-pre {
-  @extend %monospace;
-}
-
-/* Links
-   ========================================================================== */
-
-/**
- * 1. Remove the gray background on active links in IE 10.
- * 2. Remove gaps in links underline in iOS 8+ and Safari 8+.
- */
-
-a {
-  background-color: transparent; /* 1 */
-  -webkit-text-decoration-skip: objects; /* 2 */
-}
-
-/**
- * Remove the outline on focused links when they are also active or hovered
- * in all browsers (opinionated).
- */
-
-a:active,
-a:hover {
-  outline-width: 0;
-}
-
-/* Text-level semantics
-   ========================================================================== */
-
-/**
- * 1. Remove the bottom border in Firefox 39-.
- * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
- */
-
-abbr[title] {
-  border-bottom: none; /* 1 */
-  text-decoration: underline; /* 2 */
-  text-decoration: underline dotted; /* 2 */
-}
-
-/**
- * Prevent the duplicate application of `bolder` by the next rule in Safari 6.
- */
-
-b,
-strong {
-  font-weight: inherit;
-}
-
-/**
- * Add the correct font weight in Chrome, Edge, and Safari.
- */
-
-b,
-strong {
-  font-weight: bolder;
-}
-
-code,
-kbd,
-samp {
-  @extend %monospace;
-}
-
-/**
- * Add the correct font style in Android 4.3-.
- */
-
-dfn {
-  font-style: italic;
-}
-
-/**
- * Add the correct background and color in IE 9-.
- */
-
-mark {
-  background-color: #ff0;
-  color: #000;
-}
-
-/**
- * Add the correct font size in all browsers.
- */
-
-small {
-  font-size: 80%;
-}
-
-/**
- * Prevent `sub` and `sup` elements from affecting the line height in
- * all browsers.
- */
-
-sub,
-sup {
-  font-size: 75%;
-  line-height: 0;
-  position: relative;
-  vertical-align: baseline;
-}
-
-sub {
-  bottom: -0.25em;
-}
-
-sup {
-  top: -0.5em;
-}
-
-/* Embedded content
-   ========================================================================== */
-
-/**
- * Add the correct display in IE 9-.
- */
-
-audio,
-video {
-  display: inline-block;
-}
-
-/**
- * Add the correct display in iOS 4-7.
- */
-
-audio:not([controls]) {
-  display: none;
-  height: 0;
-}
-
-/**
- * Remove the border on images inside links in IE 10-.
- */
-
-img {
-  border-style: none;
-}
-
-/**
- * Hide the overflow in IE.
- */
-
-svg:not(:root) {
-  overflow: hidden;
-}
-
-/* Forms
-   ========================================================================== */
-
-/**
- * Known issues:
- * - `select`:
- *   By default, Chrome on OS X and Safari on OS X allow very limited styling of
- *   select, unless a border property is set. The default font weight on
- *   optgroup elements cannot safely be changed in Chrome on OSX and Safari on
- *   OS X.
- * - `[type="checkbox"]`:
- *   It is recommended that you do not style checkbox and radio inputs as
- *   Firefox's implementation does not respect box-sizing, padding, or width.
- * - `[type="number"]`:
- *   Certain font size values applied to number inputs cause the cursor style of
- *   the decrement button to change from `default` to `text`.
- * - `[type="search"]`:
- *   The search input is not fully stylable by default. In Chrome and Safari on
- *   OSX/iOS you can't control `font`, `padding`, `border`, or `background`. In
- *   Chrome and Safari on Windows you can't control `border` properly. It will
- *   apply `border-width` but will only show a border color (which cannot be
- *   controlled) for the outer 1px of that border. Applying
- *   `-webkit-appearance: textfield` addresses these issues without removing the
- *   benefits of search inputs (e.g. showing past searches). Safari (but not
- *   Chrome) will clip the cancel button on when it has padding (and `textfield`
- *   appearance).
- * - `::placeholder`:
- *   In Edge, placeholders will disappear on `relative` or `absolute` positioned
- *   `<input>` elements if you use `opacity` less than `1` due to a
- *   [bug](https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/3901363/).
- */
-
-/**
- * 1. Change the font styles in all browsers (opinionated).
- * 2. Remove the margin in Firefox and Safari.
- */
-
-button,
-input,
-optgroup,
-select,
-textarea {
-  @if $normalize-vertical-rhythm {
-    @include adjust-leading-to(1); /* 1 */
-  }
-  @else {
-    line-height: 1.15; /* 1 */
-  }
-  font-family: $base-font-family; /* 1 */
-  font-size: 100%; /* 1 */
-  margin: 0; /* 2 */
-}
-
-/**
- * Show the overflow in IE.
- */
-
-button {
-  overflow: visible;
-}
-
-/**
- * Remove the inheritance of text transform in Edge, Firefox, and IE.
- * 1. Remove the inheritance of text transform in Firefox.
- */
-
-button,
-select { /* 1 */
-  text-transform: none;
-}
-
-/**
- * 1. Prevent a WebKit bug where (2) destroys native `audio` and `video`
- *    controls in Android 4.
- * 2. Correct the inability to style clickable types in iOS and Safari.
- */
-
-button,
-html [type="button"], /* 1 */
-[type="reset"],
-[type="submit"] {
-  -webkit-appearance: button; /* 2 */
-}
-
-button,
-[type="button"],
-[type="reset"],
-[type="submit"] {
-
-  /**
-   * Remove the inner border and padding in Firefox.
-   */
-
-  &::-moz-focus-inner {
-    border-style: none;
-    padding: 0;
-  }
-
-  /**
-   * Restore the focus styles unset by the previous rule.
-   */
-
-  &:-moz-focusring {
-    outline: 1px dotted ButtonText;
-  }
-}
-
-/**
- * Show the overflow in Edge.
- */
-
-input {
-  overflow: visible;
-}
-
-/**
- * 1. Add the correct box sizing in IE 10-.
- * 2. Remove the padding in IE 10-.
- */
-
-[type="checkbox"],
-[type="radio"] {
-  @include box-sizing(border-box); /* 1 */
-  padding: 0; /* 2 */
-}
-
-/**
- * Correct the cursor style of increment and decrement buttons in Chrome.
- */
-
-[type="number"]::-webkit-inner-spin-button,
-[type="number"]::-webkit-outer-spin-button {
-  height: auto;
-}
-
-/**
- * 1. Correct the odd appearance in Chrome and Safari.
- * 2. Correct the outline style in Safari.
- */
-
-[type="search"] {
-  -webkit-appearance: textfield; /* 1 */
-  outline-offset: -2px; /* 2 */
-
-  /**
-   * Remove the inner padding and cancel buttons in Chrome and Safari on macOS.
-   */
-
-  &::-webkit-search-cancel-button,
-  &::-webkit-search-decoration {
-    -webkit-appearance: none;
-  }
-}
-
-/**
- * 1. Correct the inability to style clickable types in iOS and Safari.
- * 2. Change font properties to `inherit` in Safari.
- */
-
-::-webkit-file-upload-button {
-  -webkit-appearance: button; /* 1 */
-  font: inherit; /* 2 */
-}
-
-/**
- * Change the border, margin, and padding in all browsers (opinionated).
- */
-
-fieldset {
-  margin: 0 2px;
-  /* Apply borders and padding that keep the vertical rhythm. */
-  border-color: #c0c0c0;
-  @include apply-side-rhythm-border(top,    $width: 1px, $lines: 0.35 );
-  @include apply-side-rhythm-border(bottom, $width: 1px, $lines: 0.65 );
-  @include apply-side-rhythm-border(left,   $width: 1px, $lines: 0.625);
-  @include apply-side-rhythm-border(right,  $width: 1px, $lines: 0.625);
-}
-
-/**
- * 1. Correct the text wrapping in Edge and IE.
- * 2. Correct the color inheritance from `fieldset` elements in IE.
- * 3. Remove the padding so developers are not caught out when they zero out
- *    `fieldset` elements in all browsers.
- */
-
-legend {
-  box-sizing: border-box; /* 1 */
-  display: table; /* 1 */
-  max-width: 100%; /* 1 */
-  padding: 0; /* 3 */
-  color: inherit; /* 2 */
-  white-space: normal; /* 1 */
-}
-
-/**
- * 1. Add the correct display in IE 9-.
- * 2. Add the correct vertical alignment in Chrome, Firefox, and Opera.
- */
-
-progress {
-  display: inline-block; /* 1 */
-  vertical-align: baseline; /* 2 */
-}
-
-/**
- * Remove the default vertical scrollbar in IE.
- */
-
-textarea {
-  overflow: auto;
-}
-
-/* Interactive
-   ========================================================================== */
-
-/*
- * Add the correct display in Edge, IE, and Firefox.
- */
-
-details {
-  display: block;
-}
-
-/*
- * Add the correct display in all browsers.
- */
-
-summary {
-  display: list-item;
-}
-
-/*
- * Add the correct display in IE 9-.
- */
-
-menu {
-  display: block;
-
-  @if $normalize-vertical-rhythm {
-    /*
-     * 1. Set 1 unit of vertical rhythm on the top and bottom margin.
-     * 2. Set consistent space for the list style image.
-     */
-
-    @include output-rhythm(margin, rhythm(1) 0); /* 1 */
-    padding: 0 0 0 $indent-amount; /* 2 */
-
-    /**
-     * Turn off margins on nested lists.
-     */
-
-    menu &,
-    ol &,
-    ul & {
-      margin: 0;
-    }
-  }
-}
-
-/* Scripting
-   ========================================================================== */
-
-/**
- * Add the correct display in IE 9-.
- */
-
-canvas {
-  display: inline-block;
-}
-
-/**
- * Add the correct display in IE.
- */
-
-template {
-  display: none;
-}
-
-/* Hidden
-   ========================================================================== */
-
-/**
- * Add the correct display in IE 10-.
- */
-
-[hidden] {
-  display: none;
-}
diff --git a/fork-versions/deprecated-compass/_variables.scss b/fork-versions/deprecated-compass/_variables.scss
deleted file mode 100644
index cebd9e0..0000000
--- a/fork-versions/deprecated-compass/_variables.scss
+++ /dev/null
@@ -1,40 +0,0 @@
-// Variables
-//
-// If you have a base partial (or equivalent), you should move these lines to
-// that file. NOTE: Edit the lines to remove "!default".
-// @see http://compass-style.org/help/tutorials/best_practices/
-// =============================================================================
-
-// These 3 variables are copies of ones used in Compass' Vertical Rhythm module.
-
-  // The font size set on the root html element.
-  $base-font-size: 16px !default;
-
-  // The base line height determines the basic unit of vertical rhythm.
-  $base-line-height: 24px !default;
-
-  // The length unit in which to output vertical rhythm values.
-  // Supported values: px, em, rem.
-  $rhythm-unit: 'em' !default;
-
-
-// The default font family.
-$base-font-family: sans-serif !default;
-
-// The font sizes for h1-h6.
-$h1-font-size: 2    * $base-font-size !default;
-$h2-font-size: 1.5  * $base-font-size !default;
-$h3-font-size: 1.17 * $base-font-size !default;
-$h4-font-size: 1    * $base-font-size !default;
-$h5-font-size: 0.83 * $base-font-size !default;
-$h6-font-size: 0.67 * $base-font-size !default;
-
-// The amount lists and blockquotes are indented.
-$indent-amount: 40px !default;
-
-// The following variable controls whether normalize-scss will output
-// font-sizes, line-heights and block-level top/bottom margins that form a basic
-// vertical rhythm on the page, which differs from the original Normalize.css.
-// However, changing any of the variables above will cause
-// $normalize-vertical-rhythm to be automatically set to true.
-$normalize-vertical-rhythm: false !default;
diff --git a/fork-versions/typey-chroma-kss/README.md b/fork-versions/typey-chroma-kss/README.md
index 065b253..ded0b90 100644
--- a/fork-versions/typey-chroma-kss/README.md
+++ b/fork-versions/typey-chroma-kss/README.md
@@ -47,7 +47,7 @@ gem 'chroma-sass', '~> 1.0'
 gem 'typey', '~> 1.0.0'
 ```
 
-2. If you use Compass, edit your `config.rb` file to add:
+2. Optionally, edit your `config.rb` file to add:
 
  ```ruby
 require 'chroma-sass'
diff --git a/fork-versions/typey/README.md b/fork-versions/typey/README.md
index 526e73b..3533388 100644
--- a/fork-versions/typey/README.md
+++ b/fork-versions/typey/README.md
@@ -40,7 +40,7 @@ In addition to copying these files to your Sass project, you'll also need to:
 gem 'typey', '~> 1.0.0'
 ```
 
-2. If you use Compass, edit your `config.rb` file to add:
+2. Optionally, edit your `config.rb` file to add:
 
  ```ruby
 require 'typey'
diff --git a/lib/normalize-scss.rb b/lib/normalize-scss.rb
index a31710e..4f83abb 100644
--- a/lib/normalize-scss.rb
+++ b/lib/normalize-scss.rb
@@ -1,17 +1,8 @@
 project_path     = File.join(File.dirname(__FILE__), '..')
 stylesheets_path = File.join(project_path, 'sass')
 
-if (defined? Compass)
-  Compass::Frameworks.register(
-    'normalize-scss',
-    :path => project_path,
-    :stylesheets_directory => stylesheets_path
-  )
+if ENV.has_key?('SASS_PATH')
+  ENV['SASS_PATH'] = ENV['SASS_PATH'] + File::PATH_SEPARATOR + stylesheets_path
 else
-  # Compass not defined, register the Sass path via an environment variable.
-  if ENV.has_key?('SASS_PATH')
-    ENV['SASS_PATH'] = ENV['SASS_PATH'] + File::PATH_SEPARATOR + stylesheets_path
-  else
-    ENV['SASS_PATH'] = stylesheets_path
-  end
+  ENV['SASS_PATH'] = stylesheets_path
 end
diff --git a/test/fixtures/fork-versions/deprecated-compass/compass/css3/_box-sizing.scss b/test/fixtures/fork-versions/deprecated-compass/compass/css3/_box-sizing.scss
deleted file mode 100644
index 50aa5b6..0000000
--- a/test/fixtures/fork-versions/deprecated-compass/compass/css3/_box-sizing.scss
+++ /dev/null
@@ -1,9 +0,0 @@
-@mixin box-sizing($value) {
-  @if support-legacy-browser(firefox, "28") {
-    -moz-box-sizing: $value;
-  }
-  @if support-legacy-browser(safari, "5") or support-legacy-browser(chrome, "9") {
-    -webkit-box-sizing: $value;
-  }
-  box-sizing: $value;
-}
diff --git a/test/fixtures/fork-versions/deprecated-compass/compass/typography/_vertical_rhythm.scss b/test/fixtures/fork-versions/deprecated-compass/compass/typography/_vertical_rhythm.scss
deleted file mode 100644
index e44a2b1..0000000
--- a/test/fixtures/fork-versions/deprecated-compass/compass/typography/_vertical_rhythm.scss
+++ /dev/null
@@ -1,43 +0,0 @@
-@function rhythm($multiplier, $relative-to: $base-font-size) {
-  @if $rhythm-unit == "px" {
-    @return $multiplier * $base-line-height;
-  }
-  @else if $rhythm-unit == "em" {
-    @return $multiplier * ($base-line-height / $relative-to) * 1em;
-  }
-  @return $multiplier * ($base-line-height / $base-font-size) * 1rem;
-}
-
-@function em($font-size) {
-  @return ($font-size/$base-font-size) * 1em;
-}
-
-@mixin establish-baseline() {
-  html {
-    font-size: ($base-font-size/16px)*100%;
-    line-height: rhythm(1);
-  }
-}
-
-@mixin adjust-font-size-to($font-size) {
-  font-size: em($font-size);
-  line-height: rhythm(ceil(($font-size/$base-line-height) + .1), $font-size);
-}
-
-@mixin leader($multiplier, $relative-to) {
-  margin-top: rhythm($multiplier, $relative-to);
-}
-
-@mixin trailer($multiplier, $relative-to) {
-  margin-bottom: rhythm($multiplier, $relative-to);
-}
-
-@mixin output-rhythm($property, $value) {
-  #{$property}: $value;
-}
-
-@mixin apply-side-rhythm-border($side, $width: 1px, $lines: 1) {
-  #{'border-' + $side + '-width'}: em($width);
-  #{'border-' + $side + '-style'}: solid;
-  #{'padding-' + $side}: (rhythm($lines) - em($width));
-}
diff --git a/test/fixtures/fork-versions/deprecated-compass/input.scss b/test/fixtures/fork-versions/deprecated-compass/input.scss
deleted file mode 100644
index 87d2282..0000000
--- a/test/fixtures/fork-versions/deprecated-compass/input.scss
+++ /dev/null
@@ -1 +0,0 @@
-@import "normalize";
diff --git a/test/fixtures/fork-versions/deprecated-compass/output.css b/test/fixtures/fork-versions/deprecated-compass/output.css
deleted file mode 100644
index d99d989..0000000
--- a/test/fixtures/fork-versions/deprecated-compass/output.css
+++ /dev/null
@@ -1,461 +0,0 @@
-/*! normalize-scss | MIT/GPLv2 License | bit.ly/normalize-scss */
-/* Document
-   ========================================================================== */
-/**
- * 1. Establish a vertical rhythm unit using $base-font-size, $base-line-height,
- *    and $rhythm-unit variables.
- * 2. Correct old browser bug that prevented accessible resizing of text when
- *    root font-size is set with px or em.
- * 3. Correct the line height in all browsers.
- */
-html {
-  font-size: 100%;
-  line-height: 1.5em; }
-
-/**
- * 1. Change the default font family in all browsers (opinionated).
- * 2. Prevent adjustments of font size after orientation changes in
- *    IE on Windows Phone and in iOS.
- */
-html {
-  font-family: sans-serif;
-  /* 1 */
-  -ms-text-size-adjust: 100%;
-  /* 2 */
-  -webkit-text-size-adjust: 100%;
-  /* 2 */ }
-
-/* Sections
-   ========================================================================== */
-/**
- * Remove the margin in all browsers (opinionated).
- */
-body {
-  margin: 0; }
-
-/**
- * Add the correct display in IE 9-.
- */
-article,
-aside,
-footer,
-header,
-nav,
-section {
-  display: block; }
-
-/**
- * Correct the font size and margin on `h1` elements within `section` and
- * `article` contexts in Chrome, Firefox, and Safari.
- */
-h1 {
-  /* Set the font-size and line-height while keeping a proper vertical rhythm. */
-  font-size: 2em;
-  /* Set 1 unit of vertical rhythm on the top and bottom margins. */
-  margin-top: 0.75em;
-  margin-bottom: 0.75em; }
-
-/* Grouping content
-   ========================================================================== */
-/**
- * Add the correct display in IE 9-.
- */
-figcaption,
-figure {
-  display: block; }
-
-/**
- * Add the correct margin in IE 8.
- */
-figure {
-  margin: 1.5em 40px; }
-
-/**
- * 1. Add the correct box sizing in Firefox.
- * 2. Show the overflow in Edge and IE.
- */
-hr {
-  -moz-box-sizing: content-box;
-  -webkit-box-sizing: content-box;
-  box-sizing: content-box;
-  /* 1 */
-  height: 0;
-  /* 1 */
-  overflow: visible;
-  /* 2 */ }
-
-/**
- * Add the correct display in IE.
- */
-main {
-  display: block; }
-
-/**
- * 1. Correct the inheritance and scaling of font size in all browsers.
- * 2. Correct the odd `em` font sizing in all browsers.
- */
-pre, code,
-kbd,
-samp {
-  font-family: monospace, monospace;
-  /* 1 */
-  font-size: 1em;
-  /* 2 */ }
-
-/* Links
-   ========================================================================== */
-/**
- * 1. Remove the gray background on active links in IE 10.
- * 2. Remove gaps in links underline in iOS 8+ and Safari 8+.
- */
-a {
-  background-color: transparent;
-  /* 1 */
-  -webkit-text-decoration-skip: objects;
-  /* 2 */ }
-
-/**
- * Remove the outline on focused links when they are also active or hovered
- * in all browsers (opinionated).
- */
-a:active,
-a:hover {
-  outline-width: 0; }
-
-/* Text-level semantics
-   ========================================================================== */
-/**
- * 1. Remove the bottom border in Firefox 39-.
- * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
- */
-abbr[title] {
-  border-bottom: none;
-  /* 1 */
-  text-decoration: underline;
-  /* 2 */
-  text-decoration: underline dotted;
-  /* 2 */ }
-
-/**
- * Prevent the duplicate application of `bolder` by the next rule in Safari 6.
- */
-b,
-strong {
-  font-weight: inherit; }
-
-/**
- * Add the correct font weight in Chrome, Edge, and Safari.
- */
-b,
-strong {
-  font-weight: bolder; }
-
-/**
- * Add the correct font style in Android 4.3-.
- */
-dfn {
-  font-style: italic; }
-
-/**
- * Add the correct background and color in IE 9-.
- */
-mark {
-  background-color: #ff0;
-  color: #000; }
-
-/**
- * Add the correct font size in all browsers.
- */
-small {
-  font-size: 80%; }
-
-/**
- * Prevent `sub` and `sup` elements from affecting the line height in
- * all browsers.
- */
-sub,
-sup {
-  font-size: 75%;
-  line-height: 0;
-  position: relative;
-  vertical-align: baseline; }
-
-sub {
-  bottom: -0.25em; }
-
-sup {
-  top: -0.5em; }
-
-/* Embedded content
-   ========================================================================== */
-/**
- * Add the correct display in IE 9-.
- */
-audio,
-video {
-  display: inline-block; }
-
-/**
- * Add the correct display in iOS 4-7.
- */
-audio:not([controls]) {
-  display: none;
-  height: 0; }
-
-/**
- * Remove the border on images inside links in IE 10-.
- */
-img {
-  border-style: none; }
-
-/**
- * Hide the overflow in IE.
- */
-svg:not(:root) {
-  overflow: hidden; }
-
-/* Forms
-   ========================================================================== */
-/**
- * Known issues:
- * - `select`:
- *   By default, Chrome on OS X and Safari on OS X allow very limited styling of
- *   select, unless a border property is set. The default font weight on
- *   optgroup elements cannot safely be changed in Chrome on OSX and Safari on
- *   OS X.
- * - `[type="checkbox"]`:
- *   It is recommended that you do not style checkbox and radio inputs as
- *   Firefox's implementation does not respect box-sizing, padding, or width.
- * - `[type="number"]`:
- *   Certain font size values applied to number inputs cause the cursor style of
- *   the decrement button to change from `default` to `text`.
- * - `[type="search"]`:
- *   The search input is not fully stylable by default. In Chrome and Safari on
- *   OSX/iOS you can't control `font`, `padding`, `border`, or `background`. In
- *   Chrome and Safari on Windows you can't control `border` properly. It will
- *   apply `border-width` but will only show a border color (which cannot be
- *   controlled) for the outer 1px of that border. Applying
- *   `-webkit-appearance: textfield` addresses these issues without removing the
- *   benefits of search inputs (e.g. showing past searches). Safari (but not
- *   Chrome) will clip the cancel button on when it has padding (and `textfield`
- *   appearance).
- * - `::placeholder`:
- *   In Edge, placeholders will disappear on `relative` or `absolute` positioned
- *   `<input>` elements if you use `opacity` less than `1` due to a
- *   [bug](https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/3901363/).
- */
-/**
- * 1. Change the font styles in all browsers (opinionated).
- * 2. Remove the margin in Firefox and Safari.
- */
-button,
-input,
-optgroup,
-select,
-textarea {
-  line-height: 1.15;
-  /* 1 */
-  font-family: sans-serif;
-  /* 1 */
-  font-size: 100%;
-  /* 1 */
-  margin: 0;
-  /* 2 */ }
-
-/**
- * Show the overflow in IE.
- */
-button {
-  overflow: visible; }
-
-/**
- * Remove the inheritance of text transform in Edge, Firefox, and IE.
- * 1. Remove the inheritance of text transform in Firefox.
- */
-button,
-select {
-  /* 1 */
-  text-transform: none; }
-
-/**
- * 1. Prevent a WebKit bug where (2) destroys native `audio` and `video`
- *    controls in Android 4.
- * 2. Correct the inability to style clickable types in iOS and Safari.
- */
-button,
-html [type="button"],
-[type="reset"],
-[type="submit"] {
-  -webkit-appearance: button;
-  /* 2 */ }
-
-button,
-[type="button"],
-[type="reset"],
-[type="submit"] {
-  /**
-   * Remove the inner border and padding in Firefox.
-   */
-  /**
-   * Restore the focus styles unset by the previous rule.
-   */ }
-  button::-moz-focus-inner,
-  [type="button"]::-moz-focus-inner,
-  [type="reset"]::-moz-focus-inner,
-  [type="submit"]::-moz-focus-inner {
-    border-style: none;
-    padding: 0; }
-  button:-moz-focusring,
-  [type="button"]:-moz-focusring,
-  [type="reset"]:-moz-focusring,
-  [type="submit"]:-moz-focusring {
-    outline: 1px dotted ButtonText; }
-
-/**
- * Show the overflow in Edge.
- */
-input {
-  overflow: visible; }
-
-/**
- * 1. Add the correct box sizing in IE 10-.
- * 2. Remove the padding in IE 10-.
- */
-[type="checkbox"],
-[type="radio"] {
-  -moz-box-sizing: border-box;
-  -webkit-box-sizing: border-box;
-  box-sizing: border-box;
-  /* 1 */
-  padding: 0;
-  /* 2 */ }
-
-/**
- * Correct the cursor style of increment and decrement buttons in Chrome.
- */
-[type="number"]::-webkit-inner-spin-button,
-[type="number"]::-webkit-outer-spin-button {
-  height: auto; }
-
-/**
- * 1. Correct the odd appearance in Chrome and Safari.
- * 2. Correct the outline style in Safari.
- */
-[type="search"] {
-  -webkit-appearance: textfield;
-  /* 1 */
-  outline-offset: -2px;
-  /* 2 */
-  /**
-   * Remove the inner padding and cancel buttons in Chrome and Safari on macOS.
-   */ }
-  [type="search"]::-webkit-search-cancel-button, [type="search"]::-webkit-search-decoration {
-    -webkit-appearance: none; }
-
-/**
- * 1. Correct the inability to style clickable types in iOS and Safari.
- * 2. Change font properties to `inherit` in Safari.
- */
-::-webkit-file-upload-button {
-  -webkit-appearance: button;
-  /* 1 */
-  font: inherit;
-  /* 2 */ }
-
-/**
- * Change the border, margin, and padding in all browsers (opinionated).
- */
-fieldset {
-  margin: 0 2px;
-  /* Apply borders and padding that keep the vertical rhythm. */
-  border-color: #c0c0c0;
-  border-top-width: 0.0625em;
-  border-top-style: solid;
-  padding-top: 0.4625em;
-  border-bottom-width: 0.0625em;
-  border-bottom-style: solid;
-  padding-bottom: 0.9125em;
-  border-left-width: 0.0625em;
-  border-left-style: solid;
-  padding-left: 0.875em;
-  border-right-width: 0.0625em;
-  border-right-style: solid;
-  padding-right: 0.875em; }
-
-/**
- * 1. Correct the text wrapping in Edge and IE.
- * 2. Correct the color inheritance from `fieldset` elements in IE.
- * 3. Remove the padding so developers are not caught out when they zero out
- *    `fieldset` elements in all browsers.
- */
-legend {
-  box-sizing: border-box;
-  /* 1 */
-  display: table;
-  /* 1 */
-  max-width: 100%;
-  /* 1 */
-  padding: 0;
-  /* 3 */
-  color: inherit;
-  /* 2 */
-  white-space: normal;
-  /* 1 */ }
-
-/**
- * 1. Add the correct display in IE 9-.
- * 2. Add the correct vertical alignment in Chrome, Firefox, and Opera.
- */
-progress {
-  display: inline-block;
-  /* 1 */
-  vertical-align: baseline;
-  /* 2 */ }
-
-/**
- * Remove the default vertical scrollbar in IE.
- */
-textarea {
-  overflow: auto; }
-
-/* Interactive
-   ========================================================================== */
-/*
- * Add the correct display in Edge, IE, and Firefox.
- */
-details {
-  display: block; }
-
-/*
- * Add the correct display in all browsers.
- */
-summary {
-  display: list-item; }
-
-/*
- * Add the correct display in IE 9-.
- */
-menu {
-  display: block; }
-
-/* Scripting
-   ========================================================================== */
-/**
- * Add the correct display in IE 9-.
- */
-canvas {
-  display: inline-block; }
-
-/**
- * Add the correct display in IE.
- */
-template {
-  display: none; }
-
-/* Hidden
-   ========================================================================== */
-/**
- * Add the correct display in IE 10-.
- */
-[hidden] {
-  display: none; }
diff --git a/test/test_fork-versions.js b/test/test_fork-versions.js
index ac60ddc..d803da4 100644
--- a/test/test_fork-versions.js
+++ b/test/test_fork-versions.js
@@ -14,19 +14,6 @@ describe('Fork versions', function() {
     });
   });
 
-  describe('Compass fork', function() {
-    it('should render properly', function() {
-      var sassyTest = new SassyTest({
-        fixtures: path.join(__dirname, 'fixtures/fork-versions/deprecated-compass'),
-        includePaths: [
-          // Path to fork version.
-          path.join(__dirname, '../fork-versions/deprecated-compass')
-        ]
-      });
-      return sassyTest.renderFixture('./');
-    });
-  });
-
   describe('Typey fork', function() {
     it('should render properly', function() {
       var sassyTest = new SassyTest({