Remove support for IE6-7 and Firefox 29 from normalize mixin. #89

24 files changed, 0 insertions, 3477 deletions

diff --git a/test/fixtures/import-now/output.css b/test/fixtures/import-now/output.css
index 0f75d8a..0be7e3b 100644
--- a/test/fixtures/import-now/output.css
+++ b/test/fixtures/import-now/output.css
@@ -233,8 +233,6 @@ pre {
 /**
      * 1. Change font properties to `inherit` in all browsers (opinionated).
      * 2. Remove the margin in Firefox and Safari.
-     * 3. Address `font-family` inconsistency between `textarea` and other form in IE 7
-     * 4. Improve appearance and consistency with IE 6/7.
      */
 button,
 input,
@@ -304,8 +302,6 @@ input {
 /**
      * 1. Add the correct box sizing in IE <11.
      * 2. Remove the padding in IE <11.
-     * 3. Remove excess padding in IE 7.
-     *    Known issue: excess padding remains in IE 6.
      */
 [type="checkbox"],
 [type="radio"] {
@@ -366,7 +362,6 @@ fieldset {
      * 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.
-     * 4. Correct alignment displayed oddly in IE 6/7.
      */
 legend {
   box-sizing: border-box;
diff --git a/test/fixtures/normalize/exclude-multiple/output.css b/test/fixtures/normalize/exclude-multiple/output.css
index e4404c5..912e923 100644
--- a/test/fixtures/normalize/exclude-multiple/output.css
+++ b/test/fixtures/normalize/exclude-multiple/output.css
@@ -195,8 +195,6 @@ sup {
 /**
      * 1. Change font properties to `inherit` in all browsers (opinionated).
      * 2. Remove the margin in Firefox and Safari.
-     * 3. Address `font-family` inconsistency between `textarea` and other form in IE 7
-     * 4. Improve appearance and consistency with IE 6/7.
      */
 button,
 input,
@@ -266,8 +264,6 @@ input {
 /**
      * 1. Add the correct box sizing in IE <11.
      * 2. Remove the padding in IE <11.
-     * 3. Remove excess padding in IE 7.
-     *    Known issue: excess padding remains in IE 6.
      */
 [type="checkbox"],
 [type="radio"] {
@@ -328,7 +324,6 @@ fieldset {
      * 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.
-     * 4. Correct alignment displayed oddly in IE 6/7.
      */
 legend {
   box-sizing: border-box;
diff --git a/test/fixtures/normalize/exclude-string/output.css b/test/fixtures/normalize/exclude-string/output.css
index 0f75d8a..0be7e3b 100644
--- a/test/fixtures/normalize/exclude-string/output.css
+++ b/test/fixtures/normalize/exclude-string/output.css
@@ -233,8 +233,6 @@ pre {
 /**
      * 1. Change font properties to `inherit` in all browsers (opinionated).
      * 2. Remove the margin in Firefox and Safari.
-     * 3. Address `font-family` inconsistency between `textarea` and other form in IE 7
-     * 4. Improve appearance and consistency with IE 6/7.
      */
 button,
 input,
@@ -304,8 +302,6 @@ input {
 /**
      * 1. Add the correct box sizing in IE <11.
      * 2. Remove the padding in IE <11.
-     * 3. Remove excess padding in IE 7.
-     *    Known issue: excess padding remains in IE 6.
      */
 [type="checkbox"],
 [type="radio"] {
@@ -366,7 +362,6 @@ fieldset {
      * 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.
-     * 4. Correct alignment displayed oddly in IE 6/7.
      */
 legend {
   box-sizing: border-box;
diff --git a/test/fixtures/variables/default/output.css b/test/fixtures/variables/default/output.css
index 0f75d8a..0be7e3b 100644
--- a/test/fixtures/variables/default/output.css
+++ b/test/fixtures/variables/default/output.css
@@ -233,8 +233,6 @@ pre {
 /**
      * 1. Change font properties to `inherit` in all browsers (opinionated).
      * 2. Remove the margin in Firefox and Safari.
-     * 3. Address `font-family` inconsistency between `textarea` and other form in IE 7
-     * 4. Improve appearance and consistency with IE 6/7.
      */
 button,
 input,
@@ -304,8 +302,6 @@ input {
 /**
      * 1. Add the correct box sizing in IE <11.
      * 2. Remove the padding in IE <11.
-     * 3. Remove excess padding in IE 7.
-     *    Known issue: excess padding remains in IE 6.
      */
 [type="checkbox"],
 [type="radio"] {
@@ -366,7 +362,6 @@ fieldset {
      * 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.
-     * 4. Correct alignment displayed oddly in IE 6/7.
      */
 legend {
   box-sizing: border-box;
diff --git a/test/fixtures/variables/font/input.scss b/test/fixtures/variables/font/input.scss
index ab25350..5ab32d1 100644
--- a/test/fixtures/variables/font/input.scss
+++ b/test/fixtures/variables/font/input.scss
@@ -13,9 +13,5 @@ $h4-font-size: 0.9  * $base-font-size;
 $h5-font-size: 0.75 * $base-font-size;
 $h6-font-size: 0.5  * $base-font-size;
 
-$support-for: (
-  ie: 8,
-);
-
 @import 'normalize';
 @include normalize();
diff --git a/test/fixtures/variables/font/output.css b/test/fixtures/variables/font/output.css
index b02ef72..05b4c28 100644
--- a/test/fixtures/variables/font/output.css
+++ b/test/fixtures/variables/font/output.css
@@ -139,52 +139,34 @@ dfn {
      * `article` contexts in Chrome, Firefox, and Safari.
      */
 h1 {
-  font-size: 72px;
   font-size: 3rem;
-  line-height: 108px;
   line-height: 4.5rem;
   /* Set 1 unit of vertical rhythm on the top and bottom margins. */
-  margin: 36px 0;
   margin: 1.5rem 0; }
 
 h2 {
-  font-size: 48px;
   font-size: 2rem;
-  line-height: 72px;
   line-height: 3rem;
-  margin: 36px 0;
   margin: 1.5rem 0; }
 
 h3 {
-  font-size: 36px;
   font-size: 1.5rem;
-  line-height: 72px;
   line-height: 3rem;
-  margin: 36px 0;
   margin: 1.5rem 0; }
 
 h4 {
-  font-size: 21.6px;
   font-size: 0.9rem;
-  line-height: 36px;
   line-height: 1.5rem;
-  margin: 36px 0;
   margin: 1.5rem 0; }
 
 h5 {
-  font-size: 18px;
   font-size: 0.75rem;
-  line-height: 36px;
   line-height: 1.5rem;
-  margin: 36px 0;
   margin: 1.5rem 0; }
 
 h6 {
-  font-size: 12px;
   font-size: 0.5rem;
-  line-height: 36px;
   line-height: 1.5rem;
-  margin: 36px 0;
   margin: 1.5rem 0; }
 
 /**
@@ -237,17 +219,12 @@ svg:not(:root) {
        * Set 1 unit of vertical rhythm on the top and bottom margin.
        */
 blockquote {
-  margin: 36px 40px;
   margin: 1.5rem 40px; }
 
-/**
-       * Address margins set differently in IE 6/7.
-       */
 dl,
 menu,
 ol,
 ul {
-  margin: 36px 0;
   margin: 1.5rem 0; }
 
 /**
@@ -262,9 +239,6 @@ ul ul {
 dd {
   margin: 0 0 0 40px; }
 
-/**
-       * Address paddings set differently in IE 6/7.
-       */
 menu,
 ol,
 ul {
@@ -274,7 +248,6 @@ ul {
      * Add the correct margin in IE 8.
      */
 figure {
-  margin: 36px 40px;
   margin: 1.5rem 40px; }
 
 /**
@@ -294,7 +267,6 @@ hr {
        */
 p,
 pre {
-  margin: 36px 0;
   margin: 1.5rem 0; }
 
 pre {
@@ -325,8 +297,6 @@ pre {
 /**
      * 1. Change font properties to `inherit` in all browsers (opinionated).
      * 2. Remove the margin in Firefox and Safari.
-     * 3. Address `font-family` inconsistency between `textarea` and other form in IE 7
-     * 4. Improve appearance and consistency with IE 6/7.
      */
 button,
 input,
@@ -396,8 +366,6 @@ input {
 /**
      * 1. Add the correct box sizing in IE <11.
      * 2. Remove the padding in IE <11.
-     * 3. Remove excess padding in IE 7.
-     *    Known issue: excess padding remains in IE 6.
      */
 [type="checkbox"],
 [type="radio"] {
@@ -458,7 +426,6 @@ fieldset {
      * 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.
-     * 4. Correct alignment displayed oddly in IE 6/7.
      */
 legend {
   box-sizing: border-box;
diff --git a/test/fixtures/variables/indent-amount/output.css b/test/fixtures/variables/indent-amount/output.css
index b12ea4b..ef0fec4 100644
--- a/test/fixtures/variables/indent-amount/output.css
+++ b/test/fixtures/variables/indent-amount/output.css
@@ -221,9 +221,6 @@ svg:not(:root) {
 blockquote {
   margin: 1.5em 3em; }
 
-/**
-       * Address margins set differently in IE 6/7.
-       */
 dl,
 menu,
 ol,
@@ -242,9 +239,6 @@ ul ul {
 dd {
   margin: 0 0 0 3em; }
 
-/**
-       * Address paddings set differently in IE 6/7.
-       */
 menu,
 ol,
 ul {
@@ -303,8 +297,6 @@ pre {
 /**
      * 1. Change font properties to `inherit` in all browsers (opinionated).
      * 2. Remove the margin in Firefox and Safari.
-     * 3. Address `font-family` inconsistency between `textarea` and other form in IE 7
-     * 4. Improve appearance and consistency with IE 6/7.
      */
 button,
 input,
@@ -374,8 +366,6 @@ input {
 /**
      * 1. Add the correct box sizing in IE <11.
      * 2. Remove the padding in IE <11.
-     * 3. Remove excess padding in IE 7.
-     *    Known issue: excess padding remains in IE 6.
      */
 [type="checkbox"],
 [type="radio"] {
@@ -436,7 +426,6 @@ fieldset {
      * 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.
-     * 4. Correct alignment displayed oddly in IE 6/7.
      */
 legend {
   box-sizing: border-box;
diff --git a/test/fixtures/variables/support-for/firefox29/input.scss b/test/fixtures/variables/support-for/firefox29/input.scss
deleted file mode 100644
index 3e5b271..0000000
--- a/test/fixtures/variables/support-for/firefox29/input.scss
+++ /dev/null
@@ -1,6 +0,0 @@
-$support-for: (
-  firefox: 29,
-);
-
-@import 'normalize';
-@include normalize();
diff --git a/test/fixtures/variables/support-for/firefox29/output.css b/test/fixtures/variables/support-for/firefox29/output.css
deleted file mode 100644
index b2f5d0a..0000000
--- a/test/fixtures/variables/support-for/firefox29/output.css
+++ /dev/null
@@ -1,396 +0,0 @@
-/*! normalize-scss | MIT/GPLv2 License | bit.ly/normalize-scss */
-/**
-     * 1. Change the default font family in all browsers (opinionated).
-     * 2. Prevent adjustments of font size after orientation changes in IE and iOS.
-     */
-html {
-  font-family: sans-serif;
-  /* 1 */
-  -ms-text-size-adjust: 100%;
-  /* 2 */
-  -webkit-text-size-adjust: 100%;
-  /* 2 */ }
-
-/**
-     * Remove the margin in all browsers (opinionated).
-     */
-body {
-  margin: 0; }
-
-/* HTML5 display definitions
-       ========================================================================== */
-/**
-     * Add the correct display in IE <10.
-     * Add the correct display in Edge, IE, and Firefox for `details` or `summary`.
-     * Add the correct display in IE for `main`.
-     */
-article,
-aside,
-details,
-figcaption,
-figure,
-footer,
-header,
-main,
-menu,
-nav,
-section,
-summary {
-  display: block; }
-
-/**
-     * Add the correct display in IE <10.
-     */
-audio,
-canvas,
-progress,
-video {
-  display: inline-block; }
-
-/**
-     * Add the correct display and remove excess height in iOS 4-7.
-     */
-audio:not([controls]) {
-  display: none;
-  height: 0; }
-
-/**
-     * Add the correct vertical alignment in Chrome, Firefox, and Opera.
-     */
-progress {
-  vertical-align: baseline; }
-
-/**
-     * Add the correct display in IE <11, Safari <8, and Firefox <22.
-     * 1. Add the correct display in IE.
-     */
-template,
-[hidden] {
-  display: none; }
-
-/* 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 <40.
-     * 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; }
-
-/**
-     * 1. Correct the inheritance and scaling of font size in all browsers.
-     * 2. Correct the odd `em` font sizing in all browsers.
-     */
-code,
-kbd,
-samp {
-  font-family: monospace, monospace;
-  font-size: 1em; }
-
-/**
-     * Add the correct font style in Android <4.4.
-     */
-dfn {
-  font-style: italic; }
-
-/**
-     * Correct the font size and margin on `h1` elements within `section` and
-     * `article` contexts in Chrome, Firefox, and Safari.
-     */
-h1 {
-  font-size: 2em;
-  /* Set 1 unit of vertical rhythm on the top and bottom margins. */
-  margin: 0.75em 0; }
-
-/**
-     * Add the correct background and color in IE <10.
-     */
-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
-       ========================================================================== */
-/**
-     * Remove the border on images inside links in IE <11.
-     */
-img {
-  border-style: none; }
-
-/**
-     * Hide the overflow in IE.
-     */
-svg:not(:root) {
-  overflow: hidden; }
-
-/* Grouping content
-       ========================================================================== */
-/**
-     * 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 {
-  box-sizing: content-box;
-  /* 1 */
-  height: 0;
-  /* 1 */
-  overflow: visible;
-  /* 2 */ }
-
-pre {
-  font-family: monospace, monospace;
-  font-size: 1em; }
-
-/* Forms
-       ========================================================================== */
-/**
-     * Known issues:
-     * - 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.
-     * - It is recommended that you do not style checkbox and radio inputs as
-     *   Firefox's implementation does not respect box-sizing, padding, or width.
-     * - Certain font size values applied to number inputs cause the cursor style of
-     *   the decrement button to change from default to text.
-     * - 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).
-     */
-/**
-     * 1. Change font properties to `inherit` in all browsers (opinionated).
-     * 2. Remove the margin in Firefox and Safari.
-     * 3. Address `font-family` inconsistency between `textarea` and other form in IE 7
-     * 4. Improve appearance and consistency with IE 6/7.
-     */
-button,
-input,
-optgroup,
-select,
-textarea {
-  font: inherit;
-  /* 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;
-  line-height: normal; }
-
-/**
-     * 1. Add the correct box sizing in IE <11.
-     * 2. Remove the padding in IE <11.
-     * 3. Remove excess padding in IE 7.
-     *    Known issue: excess padding remains in IE 6.
-     */
-[type="checkbox"],
-[type="radio"] {
-  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 OS X.
-       */ }
-  [type="search"]::-webkit-search-cancel-button, [type="search"]::-webkit-search-decoration {
-    -webkit-appearance: none; }
-
-/**
-     * Correct the text style of placeholders in Chrome, Edge, and Safari.
-     */
-::-webkit-input-placeholder {
-  color: inherit;
-  opacity: 0.54; }
-
-/**
-     * 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 {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: 0.35em 0.625em 0.75em; }
-
-/**
-     * 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.
-     * 4. Correct alignment displayed oddly in IE 6/7.
-     */
-legend {
-  box-sizing: border-box;
-  /* 1 */
-  display: table;
-  /* 1 */
-  max-width: 100%;
-  /* 1 */
-  white-space: normal;
-  /* 1 */
-  color: inherit;
-  /* 2 */
-  padding: 0;
-  /* 3 */ }
-
-/**
-     * Restore the font weight unset by a previous rule.
-     */
-optgroup {
-  font-weight: bold; }
-
-/**
-     * Remove the default vertical scrollbar in IE.
-     */
-textarea {
-  overflow: auto; }
diff --git a/test/fixtures/variables/support-for/ie10/input.scss b/test/fixtures/variables/support-for/ie10/input.scss
deleted file mode 100644
index a7127e7..0000000
--- a/test/fixtures/variables/support-for/ie10/input.scss
+++ /dev/null
@@ -1,6 +0,0 @@
-$support-for: (
-  ie: 10,
-);
-
-@import 'normalize';
-@include normalize();
diff --git a/test/fixtures/variables/support-for/ie10/output.css b/test/fixtures/variables/support-for/ie10/output.css
deleted file mode 100644
index 0f75d8a..0000000
--- a/test/fixtures/variables/support-for/ie10/output.css
+++ /dev/null
@@ -1,395 +0,0 @@
-/*! normalize-scss | MIT/GPLv2 License | bit.ly/normalize-scss */
-/**
-     * 1. Change the default font family in all browsers (opinionated).
-     * 2. Prevent adjustments of font size after orientation changes in IE and iOS.
-     */
-html {
-  font-family: sans-serif;
-  /* 1 */
-  -ms-text-size-adjust: 100%;
-  /* 2 */
-  -webkit-text-size-adjust: 100%;
-  /* 2 */ }
-
-/**
-     * Remove the margin in all browsers (opinionated).
-     */
-body {
-  margin: 0; }
-
-/* HTML5 display definitions
-       ========================================================================== */
-/**
-     * Add the correct display in IE <10.
-     * Add the correct display in Edge, IE, and Firefox for `details` or `summary`.
-     * Add the correct display in IE for `main`.
-     */
-article,
-aside,
-details,
-figcaption,
-figure,
-footer,
-header,
-main,
-menu,
-nav,
-section,
-summary {
-  display: block; }
-
-/**
-     * Add the correct display in IE <10.
-     */
-audio,
-canvas,
-progress,
-video {
-  display: inline-block; }
-
-/**
-     * Add the correct display and remove excess height in iOS 4-7.
-     */
-audio:not([controls]) {
-  display: none;
-  height: 0; }
-
-/**
-     * Add the correct vertical alignment in Chrome, Firefox, and Opera.
-     */
-progress {
-  vertical-align: baseline; }
-
-/**
-     * Add the correct display in IE <11, Safari <8, and Firefox <22.
-     * 1. Add the correct display in IE.
-     */
-template,
-[hidden] {
-  display: none; }
-
-/* 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 <40.
-     * 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; }
-
-/**
-     * 1. Correct the inheritance and scaling of font size in all browsers.
-     * 2. Correct the odd `em` font sizing in all browsers.
-     */
-code,
-kbd,
-samp {
-  font-family: monospace, monospace;
-  font-size: 1em; }
-
-/**
-     * Add the correct font style in Android <4.4.
-     */
-dfn {
-  font-style: italic; }
-
-/**
-     * Correct the font size and margin on `h1` elements within `section` and
-     * `article` contexts in Chrome, Firefox, and Safari.
-     */
-h1 {
-  font-size: 2em;
-  /* Set 1 unit of vertical rhythm on the top and bottom margins. */
-  margin: 0.75em 0; }
-
-/**
-     * Add the correct background and color in IE <10.
-     */
-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
-       ========================================================================== */
-/**
-     * Remove the border on images inside links in IE <11.
-     */
-img {
-  border-style: none; }
-
-/**
-     * Hide the overflow in IE.
-     */
-svg:not(:root) {
-  overflow: hidden; }
-
-/* Grouping content
-       ========================================================================== */
-/**
-     * 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 {
-  box-sizing: content-box;
-  /* 1 */
-  height: 0;
-  /* 1 */
-  overflow: visible;
-  /* 2 */ }
-
-pre {
-  font-family: monospace, monospace;
-  font-size: 1em; }
-
-/* Forms
-       ========================================================================== */
-/**
-     * Known issues:
-     * - 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.
-     * - It is recommended that you do not style checkbox and radio inputs as
-     *   Firefox's implementation does not respect box-sizing, padding, or width.
-     * - Certain font size values applied to number inputs cause the cursor style of
-     *   the decrement button to change from default to text.
-     * - 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).
-     */
-/**
-     * 1. Change font properties to `inherit` in all browsers (opinionated).
-     * 2. Remove the margin in Firefox and Safari.
-     * 3. Address `font-family` inconsistency between `textarea` and other form in IE 7
-     * 4. Improve appearance and consistency with IE 6/7.
-     */
-button,
-input,
-optgroup,
-select,
-textarea {
-  font: inherit;
-  /* 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 <11.
-     * 2. Remove the padding in IE <11.
-     * 3. Remove excess padding in IE 7.
-     *    Known issue: excess padding remains in IE 6.
-     */
-[type="checkbox"],
-[type="radio"] {
-  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 OS X.
-       */ }
-  [type="search"]::-webkit-search-cancel-button, [type="search"]::-webkit-search-decoration {
-    -webkit-appearance: none; }
-
-/**
-     * Correct the text style of placeholders in Chrome, Edge, and Safari.
-     */
-::-webkit-input-placeholder {
-  color: inherit;
-  opacity: 0.54; }
-
-/**
-     * 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 {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: 0.35em 0.625em 0.75em; }
-
-/**
-     * 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.
-     * 4. Correct alignment displayed oddly in IE 6/7.
-     */
-legend {
-  box-sizing: border-box;
-  /* 1 */
-  display: table;
-  /* 1 */
-  max-width: 100%;
-  /* 1 */
-  white-space: normal;
-  /* 1 */
-  color: inherit;
-  /* 2 */
-  padding: 0;
-  /* 3 */ }
-
-/**
-     * Restore the font weight unset by a previous rule.
-     */
-optgroup {
-  font-weight: bold; }
-
-/**
-     * Remove the default vertical scrollbar in IE.
-     */
-textarea {
-  overflow: auto; }
diff --git a/test/fixtures/variables/support-for/ie11/input.scss b/test/fixtures/variables/support-for/ie11/input.scss
deleted file mode 100644
index 86a8fae..0000000
--- a/test/fixtures/variables/support-for/ie11/input.scss
+++ /dev/null
@@ -1,6 +0,0 @@
-$support-for: (
-  ie: 11,
-);
-
-@import 'normalize';
-@include normalize();
diff --git a/test/fixtures/variables/support-for/ie11/output.css b/test/fixtures/variables/support-for/ie11/output.css
deleted file mode 100644
index 0f75d8a..0000000
--- a/test/fixtures/variables/support-for/ie11/output.css
+++ /dev/null
@@ -1,395 +0,0 @@
-/*! normalize-scss | MIT/GPLv2 License | bit.ly/normalize-scss */
-/**
-     * 1. Change the default font family in all browsers (opinionated).
-     * 2. Prevent adjustments of font size after orientation changes in IE and iOS.
-     */
-html {
-  font-family: sans-serif;
-  /* 1 */
-  -ms-text-size-adjust: 100%;
-  /* 2 */
-  -webkit-text-size-adjust: 100%;
-  /* 2 */ }
-
-/**
-     * Remove the margin in all browsers (opinionated).
-     */
-body {
-  margin: 0; }
-
-/* HTML5 display definitions
-       ========================================================================== */
-/**
-     * Add the correct display in IE <10.
-     * Add the correct display in Edge, IE, and Firefox for `details` or `summary`.
-     * Add the correct display in IE for `main`.
-     */
-article,
-aside,
-details,
-figcaption,
-figure,
-footer,
-header,
-main,
-menu,
-nav,
-section,
-summary {
-  display: block; }
-
-/**
-     * Add the correct display in IE <10.
-     */
-audio,
-canvas,
-progress,
-video {
-  display: inline-block; }
-
-/**
-     * Add the correct display and remove excess height in iOS 4-7.
-     */
-audio:not([controls]) {
-  display: none;
-  height: 0; }
-
-/**
-     * Add the correct vertical alignment in Chrome, Firefox, and Opera.
-     */
-progress {
-  vertical-align: baseline; }
-
-/**
-     * Add the correct display in IE <11, Safari <8, and Firefox <22.
-     * 1. Add the correct display in IE.
-     */
-template,
-[hidden] {
-  display: none; }
-
-/* 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 <40.
-     * 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; }
-
-/**
-     * 1. Correct the inheritance and scaling of font size in all browsers.
-     * 2. Correct the odd `em` font sizing in all browsers.
-     */
-code,
-kbd,
-samp {
-  font-family: monospace, monospace;
-  font-size: 1em; }
-
-/**
-     * Add the correct font style in Android <4.4.
-     */
-dfn {
-  font-style: italic; }
-
-/**
-     * Correct the font size and margin on `h1` elements within `section` and
-     * `article` contexts in Chrome, Firefox, and Safari.
-     */
-h1 {
-  font-size: 2em;
-  /* Set 1 unit of vertical rhythm on the top and bottom margins. */
-  margin: 0.75em 0; }
-
-/**
-     * Add the correct background and color in IE <10.
-     */
-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
-       ========================================================================== */
-/**
-     * Remove the border on images inside links in IE <11.
-     */
-img {
-  border-style: none; }
-
-/**
-     * Hide the overflow in IE.
-     */
-svg:not(:root) {
-  overflow: hidden; }
-
-/* Grouping content
-       ========================================================================== */
-/**
-     * 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 {
-  box-sizing: content-box;
-  /* 1 */
-  height: 0;
-  /* 1 */
-  overflow: visible;
-  /* 2 */ }
-
-pre {
-  font-family: monospace, monospace;
-  font-size: 1em; }
-
-/* Forms
-       ========================================================================== */
-/**
-     * Known issues:
-     * - 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.
-     * - It is recommended that you do not style checkbox and radio inputs as
-     *   Firefox's implementation does not respect box-sizing, padding, or width.
-     * - Certain font size values applied to number inputs cause the cursor style of
-     *   the decrement button to change from default to text.
-     * - 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).
-     */
-/**
-     * 1. Change font properties to `inherit` in all browsers (opinionated).
-     * 2. Remove the margin in Firefox and Safari.
-     * 3. Address `font-family` inconsistency between `textarea` and other form in IE 7
-     * 4. Improve appearance and consistency with IE 6/7.
-     */
-button,
-input,
-optgroup,
-select,
-textarea {
-  font: inherit;
-  /* 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 <11.
-     * 2. Remove the padding in IE <11.
-     * 3. Remove excess padding in IE 7.
-     *    Known issue: excess padding remains in IE 6.
-     */
-[type="checkbox"],
-[type="radio"] {
-  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 OS X.
-       */ }
-  [type="search"]::-webkit-search-cancel-button, [type="search"]::-webkit-search-decoration {
-    -webkit-appearance: none; }
-
-/**
-     * Correct the text style of placeholders in Chrome, Edge, and Safari.
-     */
-::-webkit-input-placeholder {
-  color: inherit;
-  opacity: 0.54; }
-
-/**
-     * 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 {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: 0.35em 0.625em 0.75em; }
-
-/**
-     * 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.
-     * 4. Correct alignment displayed oddly in IE 6/7.
-     */
-legend {
-  box-sizing: border-box;
-  /* 1 */
-  display: table;
-  /* 1 */
-  max-width: 100%;
-  /* 1 */
-  white-space: normal;
-  /* 1 */
-  color: inherit;
-  /* 2 */
-  padding: 0;
-  /* 3 */ }
-
-/**
-     * Restore the font weight unset by a previous rule.
-     */
-optgroup {
-  font-weight: bold; }
-
-/**
-     * Remove the default vertical scrollbar in IE.
-     */
-textarea {
-  overflow: auto; }
diff --git a/test/fixtures/variables/support-for/ie6/input.scss b/test/fixtures/variables/support-for/ie6/input.scss
deleted file mode 100644
index dc6fe69..0000000
--- a/test/fixtures/variables/support-for/ie6/input.scss
+++ /dev/null
@@ -1,6 +0,0 @@
-$support-for: (
-  ie: 6,
-);
-
-@import 'normalize';
-@include normalize();
diff --git a/test/fixtures/variables/support-for/ie6/output.css b/test/fixtures/variables/support-for/ie6/output.css
deleted file mode 100644
index a8cf119..0000000
--- a/test/fixtures/variables/support-for/ie6/output.css
+++ /dev/null
@@ -1,479 +0,0 @@
-/*! normalize-scss | MIT/GPLv2 License | bit.ly/normalize-scss */
-/**
-     * 1. Change the default font family in all browsers (opinionated).
-     * 2. Prevent adjustments of font size after orientation changes in IE and iOS.
-     */
-html {
-  font-size: 100%;
-  font-family: sans-serif;
-  /* 1 */
-  -ms-text-size-adjust: 100%;
-  /* 2 */
-  -webkit-text-size-adjust: 100%;
-  /* 2 */ }
-
-/**
-     * Remove the margin in all browsers (opinionated).
-     */
-body {
-  margin: 0; }
-
-/* HTML5 display definitions
-       ========================================================================== */
-/**
-     * Add the correct display in IE <10.
-     * Add the correct display in Edge, IE, and Firefox for `details` or `summary`.
-     * Add the correct display in IE for `main`.
-     */
-article,
-aside,
-details,
-figcaption,
-figure,
-footer,
-header,
-main,
-menu,
-nav,
-section,
-summary {
-  display: block; }
-
-/**
-     * Add the correct display in IE <10.
-     */
-audio,
-canvas,
-progress,
-video {
-  display: inline-block;
-  *display: inline;
-  *zoom: 1; }
-
-/**
-     * Add the correct display and remove excess height in iOS 4-7.
-     */
-audio:not([controls]) {
-  display: none;
-  height: 0; }
-
-/**
-     * Add the correct vertical alignment in Chrome, Firefox, and Opera.
-     */
-progress {
-  vertical-align: baseline; }
-
-/**
-     * Add the correct display in IE <11, Safari <8, and Firefox <22.
-     * 1. Add the correct display in IE.
-     */
-template,
-[hidden] {
-  display: none; }
-
-/* 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 <40.
-     * 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; }
-
-/**
-     * 1. Correct the inheritance and scaling of font size in all browsers.
-     * 2. Correct the odd `em` font sizing in all browsers.
-     */
-code,
-kbd,
-samp {
-  font-family: monospace, monospace;
-  _font-family: 'courier new', monospace;
-  font-size: 1em; }
-
-/**
-     * Add the correct font style in Android <4.4.
-     */
-dfn {
-  font-style: italic; }
-
-/**
-     * Correct the font size and margin on `h1` elements within `section` and
-     * `article` contexts in Chrome, Firefox, and Safari.
-     */
-h1 {
-  font-size: 2em;
-  /* Set 1 unit of vertical rhythm on the top and bottom margins. */
-  margin: 0.75em 0; }
-
-h2 {
-  font-size: 1.5em;
-  margin: 1em 0; }
-
-h3 {
-  font-size: 1.17em;
-  margin: 1.28205em 0; }
-
-h4 {
-  font-size: 1em;
-  margin: 1.5em 0; }
-
-h5 {
-  font-size: 0.83em;
-  margin: 1.80723em 0; }
-
-h6 {
-  font-size: 0.67em;
-  margin: 2.23881em 0; }
-
-/**
-     * Add the correct background and color in IE <10.
-     */
-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
-       ========================================================================== */
-/**
-     * Remove the border on images inside links in IE <11.
-     */
-img {
-  border-style: none;
-  /* Improve image quality when scaled in IE 7. */
-  -ms-interpolation-mode: bicubic; }
-
-/**
-     * Hide the overflow in IE.
-     */
-svg:not(:root) {
-  overflow: hidden; }
-
-/* Grouping content
-       ========================================================================== */
-/**
-       * Set 1 unit of vertical rhythm on the top and bottom margin.
-       */
-blockquote {
-  margin: 1.5em 40px; }
-
-/**
-       * Address margins set differently in IE 6/7.
-       */
-dl,
-menu,
-ol,
-ul {
-  margin: 1.5em 0; }
-
-dd {
-  margin: 0 0 0 40px; }
-
-/**
-       * Address paddings set differently in IE 6/7.
-       */
-menu,
-ol,
-ul {
-  padding: 0 0 0 40px; }
-
-/**
-       * Correct list images handled incorrectly in IE 7.
-       */
-nav ul,
-nav ol {
-  list-style: none;
-  list-style-image: none; }
-
-/**
-     * 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 {
-  box-sizing: content-box;
-  /* 1 */
-  height: 0;
-  /* 1 */
-  overflow: visible;
-  /* 2 */ }
-
-/**
-       * Set 1 unit of vertical rhythm on the top and bottom margin.
-       */
-p,
-pre {
-  margin: 1.5em 0; }
-
-pre {
-  font-family: monospace, monospace;
-  _font-family: 'courier new', monospace;
-  font-size: 1em; }
-
-/* Forms
-       ========================================================================== */
-/**
-     * Known issues:
-     * - 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.
-     * - It is recommended that you do not style checkbox and radio inputs as
-     *   Firefox's implementation does not respect box-sizing, padding, or width.
-     * - Certain font size values applied to number inputs cause the cursor style of
-     *   the decrement button to change from default to text.
-     * - 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).
-     */
-/**
-       * Correct margin displayed oddly in IE 6/7.
-       */
-form {
-  margin: 0; }
-
-/**
-     * 1. Change font properties to `inherit` in all browsers (opinionated).
-     * 2. Remove the margin in Firefox and Safari.
-     * 3. Address `font-family` inconsistency between `textarea` and other form in IE 7
-     * 4. Improve appearance and consistency with IE 6/7.
-     */
-button,
-input,
-optgroup,
-select,
-textarea {
-  font: inherit;
-  /* 1 */
-  margin: 0;
-  /* 2 */
-  *font-family: sans-serif;
-  /* 3 */
-  *vertical-align: middle;
-  /* 4 */ }
-
-/**
-     * 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 <11.
-     * 2. Remove the padding in IE <11.
-     * 3. Remove excess padding in IE 7.
-     *    Known issue: excess padding remains in IE 6.
-     */
-[type="checkbox"],
-[type="radio"] {
-  box-sizing: border-box;
-  /* 1 */
-  padding: 0;
-  /* 2 */
-  *height: 13px;
-  /* 3 */
-  *width: 13px;
-  /* 3 */ }
-
-/**
-     * 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 OS X.
-       */ }
-  [type="search"]::-webkit-search-cancel-button, [type="search"]::-webkit-search-decoration {
-    -webkit-appearance: none; }
-
-/**
-     * Correct the text style of placeholders in Chrome, Edge, and Safari.
-     */
-::-webkit-input-placeholder {
-  color: inherit;
-  opacity: 0.54; }
-
-/**
-     * 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 {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: 0.35em 0.625em 0.75em; }
-
-/**
-     * 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.
-     * 4. Correct alignment displayed oddly in IE 6/7.
-     */
-legend {
-  box-sizing: border-box;
-  /* 1 */
-  display: table;
-  /* 1 */
-  max-width: 100%;
-  /* 1 */
-  white-space: normal;
-  /* 1 */
-  color: inherit;
-  /* 2 */
-  padding: 0;
-  /* 3 */
-  *margin-left: -7px;
-  /* 4 */ }
-
-/**
-     * Restore the font weight unset by a previous rule.
-     */
-optgroup {
-  font-weight: bold; }
-
-/**
-     * Remove the default vertical scrollbar in IE.
-     */
-textarea {
-  overflow: auto; }
diff --git a/test/fixtures/variables/support-for/ie7/input.scss b/test/fixtures/variables/support-for/ie7/input.scss
deleted file mode 100644
index c80a605..0000000
--- a/test/fixtures/variables/support-for/ie7/input.scss
+++ /dev/null
@@ -1,6 +0,0 @@
-$support-for: (
-  ie: 7,
-);
-
-@import 'normalize';
-@include normalize();
diff --git a/test/fixtures/variables/support-for/ie7/output.css b/test/fixtures/variables/support-for/ie7/output.css
deleted file mode 100644
index 2030ee7..0000000
--- a/test/fixtures/variables/support-for/ie7/output.css
+++ /dev/null
@@ -1,477 +0,0 @@
-/*! normalize-scss | MIT/GPLv2 License | bit.ly/normalize-scss */
-/**
-     * 1. Change the default font family in all browsers (opinionated).
-     * 2. Prevent adjustments of font size after orientation changes in IE and iOS.
-     */
-html {
-  font-size: 100%;
-  font-family: sans-serif;
-  /* 1 */
-  -ms-text-size-adjust: 100%;
-  /* 2 */
-  -webkit-text-size-adjust: 100%;
-  /* 2 */ }
-
-/**
-     * Remove the margin in all browsers (opinionated).
-     */
-body {
-  margin: 0; }
-
-/* HTML5 display definitions
-       ========================================================================== */
-/**
-     * Add the correct display in IE <10.
-     * Add the correct display in Edge, IE, and Firefox for `details` or `summary`.
-     * Add the correct display in IE for `main`.
-     */
-article,
-aside,
-details,
-figcaption,
-figure,
-footer,
-header,
-main,
-menu,
-nav,
-section,
-summary {
-  display: block; }
-
-/**
-     * Add the correct display in IE <10.
-     */
-audio,
-canvas,
-progress,
-video {
-  display: inline-block;
-  *display: inline;
-  *zoom: 1; }
-
-/**
-     * Add the correct display and remove excess height in iOS 4-7.
-     */
-audio:not([controls]) {
-  display: none;
-  height: 0; }
-
-/**
-     * Add the correct vertical alignment in Chrome, Firefox, and Opera.
-     */
-progress {
-  vertical-align: baseline; }
-
-/**
-     * Add the correct display in IE <11, Safari <8, and Firefox <22.
-     * 1. Add the correct display in IE.
-     */
-template,
-[hidden] {
-  display: none; }
-
-/* 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 <40.
-     * 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; }
-
-/**
-     * 1. Correct the inheritance and scaling of font size in all browsers.
-     * 2. Correct the odd `em` font sizing in all browsers.
-     */
-code,
-kbd,
-samp {
-  font-family: monospace, monospace;
-  font-size: 1em; }
-
-/**
-     * Add the correct font style in Android <4.4.
-     */
-dfn {
-  font-style: italic; }
-
-/**
-     * Correct the font size and margin on `h1` elements within `section` and
-     * `article` contexts in Chrome, Firefox, and Safari.
-     */
-h1 {
-  font-size: 2em;
-  /* Set 1 unit of vertical rhythm on the top and bottom margins. */
-  margin: 0.75em 0; }
-
-h2 {
-  font-size: 1.5em;
-  margin: 1em 0; }
-
-h3 {
-  font-size: 1.17em;
-  margin: 1.28205em 0; }
-
-h4 {
-  font-size: 1em;
-  margin: 1.5em 0; }
-
-h5 {
-  font-size: 0.83em;
-  margin: 1.80723em 0; }
-
-h6 {
-  font-size: 0.67em;
-  margin: 2.23881em 0; }
-
-/**
-     * Add the correct background and color in IE <10.
-     */
-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
-       ========================================================================== */
-/**
-     * Remove the border on images inside links in IE <11.
-     */
-img {
-  border-style: none;
-  /* Improve image quality when scaled in IE 7. */
-  -ms-interpolation-mode: bicubic; }
-
-/**
-     * Hide the overflow in IE.
-     */
-svg:not(:root) {
-  overflow: hidden; }
-
-/* Grouping content
-       ========================================================================== */
-/**
-       * Set 1 unit of vertical rhythm on the top and bottom margin.
-       */
-blockquote {
-  margin: 1.5em 40px; }
-
-/**
-       * Address margins set differently in IE 6/7.
-       */
-dl,
-menu,
-ol,
-ul {
-  margin: 1.5em 0; }
-
-dd {
-  margin: 0 0 0 40px; }
-
-/**
-       * Address paddings set differently in IE 6/7.
-       */
-menu,
-ol,
-ul {
-  padding: 0 0 0 40px; }
-
-/**
-       * Correct list images handled incorrectly in IE 7.
-       */
-nav ul,
-nav ol {
-  list-style: none;
-  list-style-image: none; }
-
-/**
-     * 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 {
-  box-sizing: content-box;
-  /* 1 */
-  height: 0;
-  /* 1 */
-  overflow: visible;
-  /* 2 */ }
-
-/**
-       * Set 1 unit of vertical rhythm on the top and bottom margin.
-       */
-p,
-pre {
-  margin: 1.5em 0; }
-
-pre {
-  font-family: monospace, monospace;
-  font-size: 1em; }
-
-/* Forms
-       ========================================================================== */
-/**
-     * Known issues:
-     * - 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.
-     * - It is recommended that you do not style checkbox and radio inputs as
-     *   Firefox's implementation does not respect box-sizing, padding, or width.
-     * - Certain font size values applied to number inputs cause the cursor style of
-     *   the decrement button to change from default to text.
-     * - 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).
-     */
-/**
-       * Correct margin displayed oddly in IE 6/7.
-       */
-form {
-  margin: 0; }
-
-/**
-     * 1. Change font properties to `inherit` in all browsers (opinionated).
-     * 2. Remove the margin in Firefox and Safari.
-     * 3. Address `font-family` inconsistency between `textarea` and other form in IE 7
-     * 4. Improve appearance and consistency with IE 6/7.
-     */
-button,
-input,
-optgroup,
-select,
-textarea {
-  font: inherit;
-  /* 1 */
-  margin: 0;
-  /* 2 */
-  *font-family: sans-serif;
-  /* 3 */
-  *vertical-align: middle;
-  /* 4 */ }
-
-/**
-     * 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 <11.
-     * 2. Remove the padding in IE <11.
-     * 3. Remove excess padding in IE 7.
-     *    Known issue: excess padding remains in IE 6.
-     */
-[type="checkbox"],
-[type="radio"] {
-  box-sizing: border-box;
-  /* 1 */
-  padding: 0;
-  /* 2 */
-  *height: 13px;
-  /* 3 */
-  *width: 13px;
-  /* 3 */ }
-
-/**
-     * 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 OS X.
-       */ }
-  [type="search"]::-webkit-search-cancel-button, [type="search"]::-webkit-search-decoration {
-    -webkit-appearance: none; }
-
-/**
-     * Correct the text style of placeholders in Chrome, Edge, and Safari.
-     */
-::-webkit-input-placeholder {
-  color: inherit;
-  opacity: 0.54; }
-
-/**
-     * 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 {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: 0.35em 0.625em 0.75em; }
-
-/**
-     * 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.
-     * 4. Correct alignment displayed oddly in IE 6/7.
-     */
-legend {
-  box-sizing: border-box;
-  /* 1 */
-  display: table;
-  /* 1 */
-  max-width: 100%;
-  /* 1 */
-  white-space: normal;
-  /* 1 */
-  color: inherit;
-  /* 2 */
-  padding: 0;
-  /* 3 */
-  *margin-left: -7px;
-  /* 4 */ }
-
-/**
-     * Restore the font weight unset by a previous rule.
-     */
-optgroup {
-  font-weight: bold; }
-
-/**
-     * Remove the default vertical scrollbar in IE.
-     */
-textarea {
-  overflow: auto; }
diff --git a/test/fixtures/variables/support-for/ie8/input.scss b/test/fixtures/variables/support-for/ie8/input.scss
deleted file mode 100644
index c06b51e..0000000
--- a/test/fixtures/variables/support-for/ie8/input.scss
+++ /dev/null
@@ -1,6 +0,0 @@
-$support-for: (
-  ie: 8,
-);
-
-@import 'normalize';
-@include normalize();
diff --git a/test/fixtures/variables/support-for/ie8/output.css b/test/fixtures/variables/support-for/ie8/output.css
deleted file mode 100644
index 0f75d8a..0000000
--- a/test/fixtures/variables/support-for/ie8/output.css
+++ /dev/null
@@ -1,395 +0,0 @@
-/*! normalize-scss | MIT/GPLv2 License | bit.ly/normalize-scss */
-/**
-     * 1. Change the default font family in all browsers (opinionated).
-     * 2. Prevent adjustments of font size after orientation changes in IE and iOS.
-     */
-html {
-  font-family: sans-serif;
-  /* 1 */
-  -ms-text-size-adjust: 100%;
-  /* 2 */
-  -webkit-text-size-adjust: 100%;
-  /* 2 */ }
-
-/**
-     * Remove the margin in all browsers (opinionated).
-     */
-body {
-  margin: 0; }
-
-/* HTML5 display definitions
-       ========================================================================== */
-/**
-     * Add the correct display in IE <10.
-     * Add the correct display in Edge, IE, and Firefox for `details` or `summary`.
-     * Add the correct display in IE for `main`.
-     */
-article,
-aside,
-details,
-figcaption,
-figure,
-footer,
-header,
-main,
-menu,
-nav,
-section,
-summary {
-  display: block; }
-
-/**
-     * Add the correct display in IE <10.
-     */
-audio,
-canvas,
-progress,
-video {
-  display: inline-block; }
-
-/**
-     * Add the correct display and remove excess height in iOS 4-7.
-     */
-audio:not([controls]) {
-  display: none;
-  height: 0; }
-
-/**
-     * Add the correct vertical alignment in Chrome, Firefox, and Opera.
-     */
-progress {
-  vertical-align: baseline; }
-
-/**
-     * Add the correct display in IE <11, Safari <8, and Firefox <22.
-     * 1. Add the correct display in IE.
-     */
-template,
-[hidden] {
-  display: none; }
-
-/* 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 <40.
-     * 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; }
-
-/**
-     * 1. Correct the inheritance and scaling of font size in all browsers.
-     * 2. Correct the odd `em` font sizing in all browsers.
-     */
-code,
-kbd,
-samp {
-  font-family: monospace, monospace;
-  font-size: 1em; }
-
-/**
-     * Add the correct font style in Android <4.4.
-     */
-dfn {
-  font-style: italic; }
-
-/**
-     * Correct the font size and margin on `h1` elements within `section` and
-     * `article` contexts in Chrome, Firefox, and Safari.
-     */
-h1 {
-  font-size: 2em;
-  /* Set 1 unit of vertical rhythm on the top and bottom margins. */
-  margin: 0.75em 0; }
-
-/**
-     * Add the correct background and color in IE <10.
-     */
-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
-       ========================================================================== */
-/**
-     * Remove the border on images inside links in IE <11.
-     */
-img {
-  border-style: none; }
-
-/**
-     * Hide the overflow in IE.
-     */
-svg:not(:root) {
-  overflow: hidden; }
-
-/* Grouping content
-       ========================================================================== */
-/**
-     * 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 {
-  box-sizing: content-box;
-  /* 1 */
-  height: 0;
-  /* 1 */
-  overflow: visible;
-  /* 2 */ }
-
-pre {
-  font-family: monospace, monospace;
-  font-size: 1em; }
-
-/* Forms
-       ========================================================================== */
-/**
-     * Known issues:
-     * - 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.
-     * - It is recommended that you do not style checkbox and radio inputs as
-     *   Firefox's implementation does not respect box-sizing, padding, or width.
-     * - Certain font size values applied to number inputs cause the cursor style of
-     *   the decrement button to change from default to text.
-     * - 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).
-     */
-/**
-     * 1. Change font properties to `inherit` in all browsers (opinionated).
-     * 2. Remove the margin in Firefox and Safari.
-     * 3. Address `font-family` inconsistency between `textarea` and other form in IE 7
-     * 4. Improve appearance and consistency with IE 6/7.
-     */
-button,
-input,
-optgroup,
-select,
-textarea {
-  font: inherit;
-  /* 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 <11.
-     * 2. Remove the padding in IE <11.
-     * 3. Remove excess padding in IE 7.
-     *    Known issue: excess padding remains in IE 6.
-     */
-[type="checkbox"],
-[type="radio"] {
-  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 OS X.
-       */ }
-  [type="search"]::-webkit-search-cancel-button, [type="search"]::-webkit-search-decoration {
-    -webkit-appearance: none; }
-
-/**
-     * Correct the text style of placeholders in Chrome, Edge, and Safari.
-     */
-::-webkit-input-placeholder {
-  color: inherit;
-  opacity: 0.54; }
-
-/**
-     * 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 {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: 0.35em 0.625em 0.75em; }
-
-/**
-     * 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.
-     * 4. Correct alignment displayed oddly in IE 6/7.
-     */
-legend {
-  box-sizing: border-box;
-  /* 1 */
-  display: table;
-  /* 1 */
-  max-width: 100%;
-  /* 1 */
-  white-space: normal;
-  /* 1 */
-  color: inherit;
-  /* 2 */
-  padding: 0;
-  /* 3 */ }
-
-/**
-     * Restore the font weight unset by a previous rule.
-     */
-optgroup {
-  font-weight: bold; }
-
-/**
-     * Remove the default vertical scrollbar in IE.
-     */
-textarea {
-  overflow: auto; }
diff --git a/test/fixtures/variables/support-for/ie9/input.scss b/test/fixtures/variables/support-for/ie9/input.scss
deleted file mode 100644
index 200f712..0000000
--- a/test/fixtures/variables/support-for/ie9/input.scss
+++ /dev/null
@@ -1,6 +0,0 @@
-$support-for: (
-  ie: 9,
-);
-
-@import 'normalize';
-@include normalize();
diff --git a/test/fixtures/variables/support-for/ie9/output.css b/test/fixtures/variables/support-for/ie9/output.css
deleted file mode 100644
index 0f75d8a..0000000
--- a/test/fixtures/variables/support-for/ie9/output.css
+++ /dev/null
@@ -1,395 +0,0 @@
-/*! normalize-scss | MIT/GPLv2 License | bit.ly/normalize-scss */
-/**
-     * 1. Change the default font family in all browsers (opinionated).
-     * 2. Prevent adjustments of font size after orientation changes in IE and iOS.
-     */
-html {
-  font-family: sans-serif;
-  /* 1 */
-  -ms-text-size-adjust: 100%;
-  /* 2 */
-  -webkit-text-size-adjust: 100%;
-  /* 2 */ }
-
-/**
-     * Remove the margin in all browsers (opinionated).
-     */
-body {
-  margin: 0; }
-
-/* HTML5 display definitions
-       ========================================================================== */
-/**
-     * Add the correct display in IE <10.
-     * Add the correct display in Edge, IE, and Firefox for `details` or `summary`.
-     * Add the correct display in IE for `main`.
-     */
-article,
-aside,
-details,
-figcaption,
-figure,
-footer,
-header,
-main,
-menu,
-nav,
-section,
-summary {
-  display: block; }
-
-/**
-     * Add the correct display in IE <10.
-     */
-audio,
-canvas,
-progress,
-video {
-  display: inline-block; }
-
-/**
-     * Add the correct display and remove excess height in iOS 4-7.
-     */
-audio:not([controls]) {
-  display: none;
-  height: 0; }
-
-/**
-     * Add the correct vertical alignment in Chrome, Firefox, and Opera.
-     */
-progress {
-  vertical-align: baseline; }
-
-/**
-     * Add the correct display in IE <11, Safari <8, and Firefox <22.
-     * 1. Add the correct display in IE.
-     */
-template,
-[hidden] {
-  display: none; }
-
-/* 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 <40.
-     * 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; }
-
-/**
-     * 1. Correct the inheritance and scaling of font size in all browsers.
-     * 2. Correct the odd `em` font sizing in all browsers.
-     */
-code,
-kbd,
-samp {
-  font-family: monospace, monospace;
-  font-size: 1em; }
-
-/**
-     * Add the correct font style in Android <4.4.
-     */
-dfn {
-  font-style: italic; }
-
-/**
-     * Correct the font size and margin on `h1` elements within `section` and
-     * `article` contexts in Chrome, Firefox, and Safari.
-     */
-h1 {
-  font-size: 2em;
-  /* Set 1 unit of vertical rhythm on the top and bottom margins. */
-  margin: 0.75em 0; }
-
-/**
-     * Add the correct background and color in IE <10.
-     */
-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
-       ========================================================================== */
-/**
-     * Remove the border on images inside links in IE <11.
-     */
-img {
-  border-style: none; }
-
-/**
-     * Hide the overflow in IE.
-     */
-svg:not(:root) {
-  overflow: hidden; }
-
-/* Grouping content
-       ========================================================================== */
-/**
-     * 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 {
-  box-sizing: content-box;
-  /* 1 */
-  height: 0;
-  /* 1 */
-  overflow: visible;
-  /* 2 */ }
-
-pre {
-  font-family: monospace, monospace;
-  font-size: 1em; }
-
-/* Forms
-       ========================================================================== */
-/**
-     * Known issues:
-     * - 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.
-     * - It is recommended that you do not style checkbox and radio inputs as
-     *   Firefox's implementation does not respect box-sizing, padding, or width.
-     * - Certain font size values applied to number inputs cause the cursor style of
-     *   the decrement button to change from default to text.
-     * - 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).
-     */
-/**
-     * 1. Change font properties to `inherit` in all browsers (opinionated).
-     * 2. Remove the margin in Firefox and Safari.
-     * 3. Address `font-family` inconsistency between `textarea` and other form in IE 7
-     * 4. Improve appearance and consistency with IE 6/7.
-     */
-button,
-input,
-optgroup,
-select,
-textarea {
-  font: inherit;
-  /* 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 <11.
-     * 2. Remove the padding in IE <11.
-     * 3. Remove excess padding in IE 7.
-     *    Known issue: excess padding remains in IE 6.
-     */
-[type="checkbox"],
-[type="radio"] {
-  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 OS X.
-       */ }
-  [type="search"]::-webkit-search-cancel-button, [type="search"]::-webkit-search-decoration {
-    -webkit-appearance: none; }
-
-/**
-     * Correct the text style of placeholders in Chrome, Edge, and Safari.
-     */
-::-webkit-input-placeholder {
-  color: inherit;
-  opacity: 0.54; }
-
-/**
-     * 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 {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: 0.35em 0.625em 0.75em; }
-
-/**
-     * 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.
-     * 4. Correct alignment displayed oddly in IE 6/7.
-     */
-legend {
-  box-sizing: border-box;
-  /* 1 */
-  display: table;
-  /* 1 */
-  max-width: 100%;
-  /* 1 */
-  white-space: normal;
-  /* 1 */
-  color: inherit;
-  /* 2 */
-  padding: 0;
-  /* 3 */ }
-
-/**
-     * Restore the font weight unset by a previous rule.
-     */
-optgroup {
-  font-weight: bold; }
-
-/**
-     * Remove the default vertical scrollbar in IE.
-     */
-textarea {
-  overflow: auto; }
diff --git a/test/fixtures/variables/support-for/negative-value/input.scss b/test/fixtures/variables/support-for/negative-value/input.scss
deleted file mode 100644
index 36a9e56..0000000
--- a/test/fixtures/variables/support-for/negative-value/input.scss
+++ /dev/null
@@ -1,6 +0,0 @@
-$support-for: (
-  ie: -2,
-);
-
-@import 'normalize';
-@include normalize();
diff --git a/test/fixtures/variables/support-for/negative-value/output.css b/test/fixtures/variables/support-for/negative-value/output.css
deleted file mode 100644
index 0f75d8a..0000000
--- a/test/fixtures/variables/support-for/negative-value/output.css
+++ /dev/null
@@ -1,395 +0,0 @@
-/*! normalize-scss | MIT/GPLv2 License | bit.ly/normalize-scss */
-/**
-     * 1. Change the default font family in all browsers (opinionated).
-     * 2. Prevent adjustments of font size after orientation changes in IE and iOS.
-     */
-html {
-  font-family: sans-serif;
-  /* 1 */
-  -ms-text-size-adjust: 100%;
-  /* 2 */
-  -webkit-text-size-adjust: 100%;
-  /* 2 */ }
-
-/**
-     * Remove the margin in all browsers (opinionated).
-     */
-body {
-  margin: 0; }
-
-/* HTML5 display definitions
-       ========================================================================== */
-/**
-     * Add the correct display in IE <10.
-     * Add the correct display in Edge, IE, and Firefox for `details` or `summary`.
-     * Add the correct display in IE for `main`.
-     */
-article,
-aside,
-details,
-figcaption,
-figure,
-footer,
-header,
-main,
-menu,
-nav,
-section,
-summary {
-  display: block; }
-
-/**
-     * Add the correct display in IE <10.
-     */
-audio,
-canvas,
-progress,
-video {
-  display: inline-block; }
-
-/**
-     * Add the correct display and remove excess height in iOS 4-7.
-     */
-audio:not([controls]) {
-  display: none;
-  height: 0; }
-
-/**
-     * Add the correct vertical alignment in Chrome, Firefox, and Opera.
-     */
-progress {
-  vertical-align: baseline; }
-
-/**
-     * Add the correct display in IE <11, Safari <8, and Firefox <22.
-     * 1. Add the correct display in IE.
-     */
-template,
-[hidden] {
-  display: none; }
-
-/* 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 <40.
-     * 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; }
-
-/**
-     * 1. Correct the inheritance and scaling of font size in all browsers.
-     * 2. Correct the odd `em` font sizing in all browsers.
-     */
-code,
-kbd,
-samp {
-  font-family: monospace, monospace;
-  font-size: 1em; }
-
-/**
-     * Add the correct font style in Android <4.4.
-     */
-dfn {
-  font-style: italic; }
-
-/**
-     * Correct the font size and margin on `h1` elements within `section` and
-     * `article` contexts in Chrome, Firefox, and Safari.
-     */
-h1 {
-  font-size: 2em;
-  /* Set 1 unit of vertical rhythm on the top and bottom margins. */
-  margin: 0.75em 0; }
-
-/**
-     * Add the correct background and color in IE <10.
-     */
-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
-       ========================================================================== */
-/**
-     * Remove the border on images inside links in IE <11.
-     */
-img {
-  border-style: none; }
-
-/**
-     * Hide the overflow in IE.
-     */
-svg:not(:root) {
-  overflow: hidden; }
-
-/* Grouping content
-       ========================================================================== */
-/**
-     * 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 {
-  box-sizing: content-box;
-  /* 1 */
-  height: 0;
-  /* 1 */
-  overflow: visible;
-  /* 2 */ }
-
-pre {
-  font-family: monospace, monospace;
-  font-size: 1em; }
-
-/* Forms
-       ========================================================================== */
-/**
-     * Known issues:
-     * - 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.
-     * - It is recommended that you do not style checkbox and radio inputs as
-     *   Firefox's implementation does not respect box-sizing, padding, or width.
-     * - Certain font size values applied to number inputs cause the cursor style of
-     *   the decrement button to change from default to text.
-     * - 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).
-     */
-/**
-     * 1. Change font properties to `inherit` in all browsers (opinionated).
-     * 2. Remove the margin in Firefox and Safari.
-     * 3. Address `font-family` inconsistency between `textarea` and other form in IE 7
-     * 4. Improve appearance and consistency with IE 6/7.
-     */
-button,
-input,
-optgroup,
-select,
-textarea {
-  font: inherit;
-  /* 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 <11.
-     * 2. Remove the padding in IE <11.
-     * 3. Remove excess padding in IE 7.
-     *    Known issue: excess padding remains in IE 6.
-     */
-[type="checkbox"],
-[type="radio"] {
-  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 OS X.
-       */ }
-  [type="search"]::-webkit-search-cancel-button, [type="search"]::-webkit-search-decoration {
-    -webkit-appearance: none; }
-
-/**
-     * Correct the text style of placeholders in Chrome, Edge, and Safari.
-     */
-::-webkit-input-placeholder {
-  color: inherit;
-  opacity: 0.54; }
-
-/**
-     * 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 {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: 0.35em 0.625em 0.75em; }
-
-/**
-     * 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.
-     * 4. Correct alignment displayed oddly in IE 6/7.
-     */
-legend {
-  box-sizing: border-box;
-  /* 1 */
-  display: table;
-  /* 1 */
-  max-width: 100%;
-  /* 1 */
-  white-space: normal;
-  /* 1 */
-  color: inherit;
-  /* 2 */
-  padding: 0;
-  /* 3 */ }
-
-/**
-     * Restore the font weight unset by a previous rule.
-     */
-optgroup {
-  font-weight: bold; }
-
-/**
-     * Remove the default vertical scrollbar in IE.
-     */
-textarea {
-  overflow: auto; }
diff --git a/test/test_variables.js b/test/test_variables.js
index 00210f4..7102e21 100644
--- a/test/test_variables.js
+++ b/test/test_variables.js
@@ -28,38 +28,4 @@ describe('Configuration variables', function() {
       return sassyTest.renderFixture('variables/indent-amount');
     });
   });
-
-  describe('$support-for', function() {
-    it('should support Firefox 29', function() {
-      return sassyTest.renderFixture('variables/support-for/firefox29');
-    });
-
-    it('should support IE 6', function() {
-      return sassyTest.renderFixture('variables/support-for/ie6');
-    });
-
-    it('should support IE 7', function() {
-      return sassyTest.renderFixture('variables/support-for/ie7');
-    });
-
-    it('should support IE 8', function() {
-      return sassyTest.renderFixture('variables/support-for/ie8');
-    });
-
-    it('should support IE 9', function() {
-      return sassyTest.renderFixture('variables/support-for/ie9');
-    });
-
-    it('should support IE 10', function() {
-      return sassyTest.renderFixture('variables/support-for/ie10');
-    });
-
-    it('should support IE 11', function() {
-      return sassyTest.renderFixture('variables/support-for/ie11');
-    });
-
-    it('should support "last X versions" with -X value', function() {
-      return sassyTest.renderFixture('variables/support-for/negative-value');
-    });
-  });
 });