Upgrade to normalize 7.0.0. Fixes #107

22 files changed, 119 insertions, 296 deletions

diff --git a/fork-versions/default/_normalize.scss b/fork-versions/default/_normalize.scss
index aafaa74..30c5969 100644
--- a/fork-versions/default/_normalize.scss
+++ b/fork-versions/default/_normalize.scss
@@ -19,14 +19,16 @@
    ========================================================================== */
 
 /**
- * 1. Change the default font family in all browsers (opinionated).
- * 2. Correct the line height in all browsers.
- * 3. Prevent adjustments of font size after orientation changes in
+ * 1. Correct the line height in all browsers.
+ * 2. Prevent adjustments of font size after orientation changes in
  *    IE on Windows Phone and in iOS.
  */
 
 html {
-  font-family: $base-font-family; /* 1 */
+  @if $base-font-family {
+    /* Change the default font family in all browsers (opinionated). */
+    font-family: $base-font-family;
+  }
   @if $base-font-size != 16px or $normalize-vertical-rhythm {
     // Correct old browser bug that prevented accessible resizing of text
     // when root font-size is set with px or em.
@@ -35,13 +37,13 @@ html {
   @if $normalize-vertical-rhythm {
     // Establish a vertical rhythm unit using $base-font-size and
     // $base-line-height variables.
-    line-height: ($base-line-height / $base-font-size) * 1em; /* 2 */
+    line-height: ($base-line-height / $base-font-size) * 1em; /* 1 */
   }
   @else {
-    line-height: 1.15; /* 2 */
+    line-height: 1.15; /* 1 */
   }
-  -ms-text-size-adjust: 100%; /* 3 */
-  -webkit-text-size-adjust: 100%; /* 3 */
+  -ms-text-size-adjust: 100%; /* 2 */
+  -webkit-text-size-adjust: 100%; /* 2 */
 }
 
 /* Sections
@@ -239,21 +241,11 @@ a {
   -webkit-text-decoration-skip: objects; /* 2 */
 }
 
-/**
- * Remove the outline on focused links when they are also active or hovered
- * in all browsers (opinionated).
- */
-
-a:active,
-a:hover {
-  outline-width: 0;
-}
-
 /* Text-level semantics
    ========================================================================== */
 
 /**
- * 1. Remove the bottom border in Firefox 39-.
+ * 1. Remove the bottom border in Chrome 57- and Firefox 39-.
  * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
  */
 
@@ -418,7 +410,7 @@ textarea {
   @else {
     line-height: 1.15; /* 1 */
   }
-  font-family: $base-font-family; /* 1 */
+  font-family: if($base-font-family, $base-font-family, sans-serif); /* 1 */
   font-size: 100%; /* 1 */
   margin: 0; /* 2 */
 }
@@ -535,13 +527,11 @@ input {
 }
 
 /**
- * Change the border, margin, and padding in all browsers (opinionated).
+ * Correct the padding in Firefox.
  */
 
 fieldset {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: 0.35em 0.625em 0.75em;
+  padding: 0.35em 0.75em 0.625em;
 }
 
 /**
diff --git a/fork-versions/default/_variables.scss b/fork-versions/default/_variables.scss
index a3c28a3..f5bd845 100644
--- a/fork-versions/default/_variables.scss
+++ b/fork-versions/default/_variables.scss
@@ -15,7 +15,7 @@ $base-line-height: 24px !default;
 $base-unit: 'em' !default;
 
 // The default font family.
-$base-font-family: sans-serif !default;
+$base-font-family: null !default;
 
 // The font sizes for h1-h6.
 $h1-font-size: 2    * $base-font-size !default;
diff --git a/fork-versions/typey-chroma-kss/base/forms/_forms.scss b/fork-versions/typey-chroma-kss/base/forms/_forms.scss
index 3dc5641..8a6fa29 100644
--- a/fork-versions/typey-chroma-kss/base/forms/_forms.scss
+++ b/fork-versions/typey-chroma-kss/base/forms/_forms.scss
@@ -188,10 +188,9 @@ input {
 // Style guide: forms.base.fieldset
 
 fieldset {
-  // Change the border, margin, and padding in all browsers (opinionated).
-  @include padding(.35 .625 .65);
+  // Correct the padding in Firefox.
+  @include padding(.35 .5 .65);
   border: 1px solid color(border);
-  margin: 0 2px;
 }
 
 legend {
diff --git a/fork-versions/typey-chroma-kss/base/links/_links.scss b/fork-versions/typey-chroma-kss/base/links/_links.scss
index b77730f..074060b 100644
--- a/fork-versions/typey-chroma-kss/base/links/_links.scss
+++ b/fork-versions/typey-chroma-kss/base/links/_links.scss
@@ -44,13 +44,6 @@ a:active {
   }
 }
 
-// Remove the outline on focused links when they are also active or hovered
-// in all browsers (opinionated).
-a:active,
-a:hover {
-  outline-width: 0;
-}
-
 @media print {
   // Underline all links.
   :link,
diff --git a/fork-versions/typey-chroma-kss/base/text/_text.scss b/fork-versions/typey-chroma-kss/base/text/_text.scss
index b955ce7..8ef729d 100644
--- a/fork-versions/typey-chroma-kss/base/text/_text.scss
+++ b/fork-versions/typey-chroma-kss/base/text/_text.scss
@@ -16,7 +16,7 @@
 // Style guide: base.text.abbr
 
 abbr[title] {
-  // Remove the bottom border in Firefox 39-.
+  // Remove the bottom border in Chrome 57- and Firefox 39-.
   border-bottom: 0;
   // sass-lint:disable no-duplicate-properties
   // Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
diff --git a/fork-versions/typey/_normalize.scss b/fork-versions/typey/_normalize.scss
index 7d3f02c..ede3847 100644
--- a/fork-versions/typey/_normalize.scss
+++ b/fork-versions/typey/_normalize.scss
@@ -194,21 +194,11 @@ a {
   -webkit-text-decoration-skip: objects; /* 2 */
 }
 
-/**
- * Remove the outline on focused links when they are also active or hovered
- * in all browsers (opinionated).
- */
-
-a:active,
-a:hover {
-  outline-width: 0;
-}
-
 /* Text-level semantics
    ========================================================================== */
 
 /**
- * 1. Remove the bottom border in Firefox 39-.
+ * 1. Remove the bottom border in Chrome 57- and Firefox 39-.
  * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
  */
 
@@ -485,14 +475,13 @@ input {
 }
 
 /**
- * Change the border, margin, and padding in all browsers (opinionated).
+ * Correct the padding in Firefox.
  */
 
 fieldset {
   // Apply borders and padding that keep the vertical rhythm.
-  @include padding(.35 .625 .65);
+  @include padding(.35 .5 .65);
   border: 1px solid #c0c0c0;
-  margin: 0 2px;
 }
 
 /**
diff --git a/sass/normalize/_normalize-mixin.scss b/sass/normalize/_normalize-mixin.scss
index f0aaef2..a366f7b 100644
--- a/sass/normalize/_normalize-mixin.scss
+++ b/sass/normalize/_normalize-mixin.scss
@@ -48,27 +48,29 @@
        ========================================================================== */
 
     /**
-     * 1. Change the default font family in all browsers (opinionated).
-     * 2. Correct the line height in all browsers.
-     * 3. Prevent adjustments of font size after orientation changes in
+     * 1. Correct the line height in all browsers.
+     * 2. Prevent adjustments of font size after orientation changes in
      *    IE on Windows Phone and in iOS.
      */
 
     html {
-      font-family: $base-font-family; /* 1 */
+      @if $base-font-family {
+        /* Change the default font family in all browsers (opinionated). */
+        font-family: $base-font-family;
+      }
       @if $base-font-size != 16px or $normalize-vertical-rhythm {
         // Correct old browser bug that prevented accessible resizing of text
         // when root font-size is set with px or em.
         font-size: ($base-font-size / 16px) * 100%;
       }
       @if $normalize-vertical-rhythm {
-        line-height: ($base-line-height / $base-font-size) * 1em; /* 2 */
+        line-height: ($base-line-height / $base-font-size) * 1em; /* 1 */
       }
       @else {
-        line-height: 1.15; /* 2 */
+        line-height: 1.15; /* 1 */
       }
-      -ms-text-size-adjust: 100%; /* 3 */
-      -webkit-text-size-adjust: 100%; /* 3 */
+      -ms-text-size-adjust: 100%; /* 2 */
+      -webkit-text-size-adjust: 100%; /* 2 */
     }
   }
 
@@ -267,16 +269,6 @@
       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;
-    }
   }
 
   @if _normalize-include(text) {
@@ -284,7 +276,7 @@
        ========================================================================== */
 
     /**
-     * 1. Remove the bottom border in Firefox 39-.
+     * 1. Remove the bottom border in Chrome 57- and Firefox 39-.
      * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
      */
 
@@ -424,7 +416,7 @@
     optgroup,
     select,
     textarea {
-      font-family: $base-font-family; /* 1 */
+      font-family: if($base-font-family, $base-font-family, sans-serif); /* 1 */
       font-size: 100%; /* 1 */
       @if $normalize-vertical-rhythm {
         line-height: ($base-line-height / $base-font-size) * 1em; /* 1 */
@@ -547,13 +539,11 @@
     }
 
     /**
-     * Change the border, margin, and padding in all browsers (opinionated).
+     * Correct the padding in Firefox.
      */
 
     fieldset {
-      border: 1px solid #c0c0c0;
-      margin: 0 2px;
-      padding: 0.35em 0.625em 0.75em;
+      padding: 0.35em 0.75em 0.625em;
     }
 
     /**
diff --git a/sass/normalize/_variables.scss b/sass/normalize/_variables.scss
index 2f06b25..10d05ed 100644
--- a/sass/normalize/_variables.scss
+++ b/sass/normalize/_variables.scss
@@ -15,7 +15,7 @@ $base-line-height: 24px !default;
 $base-unit: 'em' !default;
 
 // The default font family.
-$base-font-family: sans-serif !default;
+$base-font-family: null !default;
 
 // The font sizes for h1-h6.
 $h1-font-size: 2    * $base-font-size !default;
diff --git a/test/fixtures/fork-versions/default/output.css b/test/fixtures/fork-versions/default/output.css
index 5c89210..90f518f 100644
--- a/test/fixtures/fork-versions/default/output.css
+++ b/test/fixtures/fork-versions/default/output.css
@@ -2,20 +2,17 @@
 /* Document
    ========================================================================== */
 /**
- * 1. Change the default font family in all browsers (opinionated).
- * 2. Correct the line height in all browsers.
- * 3. Prevent adjustments of font size after orientation changes in
+ * 1. Correct the line height in all browsers.
+ * 2. Prevent adjustments of font size after orientation changes in
  *    IE on Windows Phone and in iOS.
  */
 html {
-  font-family: sans-serif;
-  /* 1 */
   line-height: 1.15;
-  /* 2 */
+  /* 1 */
   -ms-text-size-adjust: 100%;
-  /* 3 */
+  /* 2 */
   -webkit-text-size-adjust: 100%;
-  /* 3 */ }
+  /* 2 */ }
 
 /* Sections
    ========================================================================== */
@@ -101,18 +98,10 @@ a {
   -webkit-text-decoration-skip: objects;
   /* 2 */ }
 
-/**
- * Remove the outline on focused links when they are also active or hovered
- * in all browsers (opinionated).
- */
-a:active,
-a:hover {
-  outline-width: 0; }
-
 /* Text-level semantics
    ========================================================================== */
 /**
- * 1. Remove the bottom border in Firefox 39-.
+ * 1. Remove the bottom border in Chrome 57- and Firefox 39-.
  * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
  */
 abbr[title] {
@@ -348,12 +337,10 @@ input {
   /* 2 */ }
 
 /**
- * Change the border, margin, and padding in all browsers (opinionated).
+ * Correct the padding in Firefox.
  */
 fieldset {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: 0.35em 0.625em 0.75em; }
+  padding: 0.35em 0.75em 0.625em; }
 
 /**
  * 1. Correct the text wrapping in Edge and IE.
diff --git a/test/fixtures/fork-versions/typey-chroma-kss/output.css b/test/fixtures/fork-versions/typey-chroma-kss/output.css
index 0d23aab..091d0d9 100644
--- a/test/fixtures/fork-versions/typey-chroma-kss/output.css
+++ b/test/fixtures/fork-versions/typey-chroma-kss/output.css
@@ -127,10 +127,6 @@ a:active {
   a:active:not(.button) {
     background-color: transparent; }
 
-a:active,
-a:hover {
-  outline-width: 0; }
-
 @media print {
   :link,
   :visited {
@@ -316,9 +312,8 @@ button[disabled],
   padding: 0; }
 
 fieldset {
-  padding: 0.525rem 0.9375rem 0.975rem;
-  border: 1px solid #cccccc;
-  margin: 0 2px; }
+  padding: 0.525rem 0.75rem 0.975rem;
+  border: 1px solid #cccccc; }
 
 legend {
   box-sizing: border-box;
diff --git a/test/fixtures/fork-versions/typey/output.css b/test/fixtures/fork-versions/typey/output.css
index 8cc6acf..5515493 100644
--- a/test/fixtures/fork-versions/typey/output.css
+++ b/test/fixtures/fork-versions/typey/output.css
@@ -167,18 +167,10 @@ a {
   -webkit-text-decoration-skip: objects;
   /* 2 */ }
 
-/**
- * Remove the outline on focused links when they are also active or hovered
- * in all browsers (opinionated).
- */
-a:active,
-a:hover {
-  outline-width: 0; }
-
 /* Text-level semantics
    ========================================================================== */
 /**
- * 1. Remove the bottom border in Firefox 39-.
+ * 1. Remove the bottom border in Chrome 57- and Firefox 39-.
  * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
  */
 abbr[title] {
@@ -414,12 +406,11 @@ input {
   /* 2 */ }
 
 /**
- * Change the border, margin, and padding in all browsers (opinionated).
+ * Correct the padding in Firefox.
  */
 fieldset {
-  padding: 0.525rem 0.9375rem 0.975rem;
-  border: 1px solid #c0c0c0;
-  margin: 0 2px; }
+  padding: 0.525rem 0.75rem 0.975rem;
+  border: 1px solid #c0c0c0; }
 
 /**
  * 1. Correct the text wrapping in Edge and IE.
diff --git a/test/fixtures/import-now/output.css b/test/fixtures/import-now/output.css
index 429af58..d725150 100644
--- a/test/fixtures/import-now/output.css
+++ b/test/fixtures/import-now/output.css
@@ -2,20 +2,17 @@
 /* Document
        ========================================================================== */
 /**
-     * 1. Change the default font family in all browsers (opinionated).
-     * 2. Correct the line height in all browsers.
-     * 3. Prevent adjustments of font size after orientation changes in
+     * 1. Correct the line height in all browsers.
+     * 2. Prevent adjustments of font size after orientation changes in
      *    IE on Windows Phone and in iOS.
      */
 html {
-  font-family: sans-serif;
-  /* 1 */
   line-height: 1.15;
-  /* 2 */
+  /* 1 */
   -ms-text-size-adjust: 100%;
-  /* 3 */
+  /* 2 */
   -webkit-text-size-adjust: 100%;
-  /* 3 */ }
+  /* 2 */ }
 
 /* Sections
        ========================================================================== */
@@ -99,18 +96,10 @@ a {
   -webkit-text-decoration-skip: objects;
   /* 2 */ }
 
-/**
-     * Remove the outline on focused links when they are also active or hovered
-     * in all browsers (opinionated).
-     */
-a:active,
-a:hover {
-  outline-width: 0; }
-
 /* Text-level semantics
        ========================================================================== */
 /**
-     * 1. Remove the bottom border in Firefox 39-.
+     * 1. Remove the bottom border in Chrome 57- and Firefox 39-.
      * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
      */
 abbr[title] {
@@ -330,12 +319,10 @@ input {
   /* 2 */ }
 
 /**
-     * Change the border, margin, and padding in all browsers (opinionated).
+     * Correct the padding in Firefox.
      */
 fieldset {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: 0.35em 0.625em 0.75em; }
+  padding: 0.35em 0.75em 0.625em; }
 
 /**
      * 1. Correct the text wrapping in Edge and IE.
diff --git a/test/fixtures/normalize/exclude-multiple/output.css b/test/fixtures/normalize/exclude-multiple/output.css
index bb64a34..ad16984 100644
--- a/test/fixtures/normalize/exclude-multiple/output.css
+++ b/test/fixtures/normalize/exclude-multiple/output.css
@@ -2,20 +2,17 @@
 /* Document
        ========================================================================== */
 /**
-     * 1. Change the default font family in all browsers (opinionated).
-     * 2. Correct the line height in all browsers.
-     * 3. Prevent adjustments of font size after orientation changes in
+     * 1. Correct the line height in all browsers.
+     * 2. Prevent adjustments of font size after orientation changes in
      *    IE on Windows Phone and in iOS.
      */
 html {
-  font-family: sans-serif;
-  /* 1 */
   line-height: 1.15;
-  /* 2 */
+  /* 1 */
   -ms-text-size-adjust: 100%;
-  /* 3 */
+  /* 2 */
   -webkit-text-size-adjust: 100%;
-  /* 3 */ }
+  /* 2 */ }
 
 /* Sections
        ========================================================================== */
@@ -56,18 +53,10 @@ a {
   -webkit-text-decoration-skip: objects;
   /* 2 */ }
 
-/**
-     * Remove the outline on focused links when they are also active or hovered
-     * in all browsers (opinionated).
-     */
-a:active,
-a:hover {
-  outline-width: 0; }
-
 /* Text-level semantics
        ========================================================================== */
 /**
-     * 1. Remove the bottom border in Firefox 39-.
+     * 1. Remove the bottom border in Chrome 57- and Firefox 39-.
      * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
      */
 abbr[title] {
@@ -259,12 +248,10 @@ input {
   /* 2 */ }
 
 /**
-     * Change the border, margin, and padding in all browsers (opinionated).
+     * Correct the padding in Firefox.
      */
 fieldset {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: 0.35em 0.625em 0.75em; }
+  padding: 0.35em 0.75em 0.625em; }
 
 /**
      * 1. Correct the text wrapping in Edge and IE.
diff --git a/test/fixtures/normalize/exclude-single/output.css b/test/fixtures/normalize/exclude-single/output.css
index 0034bcb..ec53e8f 100644
--- a/test/fixtures/normalize/exclude-single/output.css
+++ b/test/fixtures/normalize/exclude-single/output.css
@@ -2,20 +2,17 @@
 /* Document
        ========================================================================== */
 /**
-     * 1. Change the default font family in all browsers (opinionated).
-     * 2. Correct the line height in all browsers.
-     * 3. Prevent adjustments of font size after orientation changes in
+     * 1. Correct the line height in all browsers.
+     * 2. Prevent adjustments of font size after orientation changes in
      *    IE on Windows Phone and in iOS.
      */
 html {
-  font-family: sans-serif;
-  /* 1 */
   line-height: 1.15;
-  /* 2 */
+  /* 1 */
   -ms-text-size-adjust: 100%;
-  /* 3 */
+  /* 2 */
   -webkit-text-size-adjust: 100%;
-  /* 3 */ }
+  /* 2 */ }
 
 /* Sections
        ========================================================================== */
@@ -99,18 +96,10 @@ a {
   -webkit-text-decoration-skip: objects;
   /* 2 */ }
 
-/**
-     * Remove the outline on focused links when they are also active or hovered
-     * in all browsers (opinionated).
-     */
-a:active,
-a:hover {
-  outline-width: 0; }
-
 /* Text-level semantics
        ========================================================================== */
 /**
-     * 1. Remove the bottom border in Firefox 39-.
+     * 1. Remove the bottom border in Chrome 57- and Firefox 39-.
      * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
      */
 abbr[title] {
diff --git a/test/fixtures/normalize/exclude-string/output.css b/test/fixtures/normalize/exclude-string/output.css
index 4c677fc..c9f897a 100644
--- a/test/fixtures/normalize/exclude-string/output.css
+++ b/test/fixtures/normalize/exclude-string/output.css
@@ -2,20 +2,17 @@
 /* Document
        ========================================================================== */
 /**
-     * 1. Change the default font family in all browsers (opinionated).
-     * 2. Correct the line height in all browsers.
-     * 3. Prevent adjustments of font size after orientation changes in
+     * 1. Correct the line height in all browsers.
+     * 2. Prevent adjustments of font size after orientation changes in
      *    IE on Windows Phone and in iOS.
      */
 html {
-  font-family: sans-serif;
-  /* 1 */
   line-height: 1.15;
-  /* 2 */
+  /* 1 */
   -ms-text-size-adjust: 100%;
-  /* 3 */
+  /* 2 */
   -webkit-text-size-adjust: 100%;
-  /* 3 */ }
+  /* 2 */ }
 
 /* Sections
        ========================================================================== */
@@ -99,18 +96,10 @@ a {
   -webkit-text-decoration-skip: objects;
   /* 2 */ }
 
-/**
-     * Remove the outline on focused links when they are also active or hovered
-     * in all browsers (opinionated).
-     */
-a:active,
-a:hover {
-  outline-width: 0; }
-
 /* Text-level semantics
        ========================================================================== */
 /**
-     * 1. Remove the bottom border in Firefox 39-.
+     * 1. Remove the bottom border in Chrome 57- and Firefox 39-.
      * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
      */
 abbr[title] {
@@ -330,12 +319,10 @@ input {
   /* 2 */ }
 
 /**
-     * Change the border, margin, and padding in all browsers (opinionated).
+     * Correct the padding in Firefox.
      */
 fieldset {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: 0.35em 0.625em 0.75em; }
+  padding: 0.35em 0.75em 0.625em; }
 
 /**
      * 1. Correct the text wrapping in Edge and IE.
diff --git a/test/fixtures/normalize/include-multiple/output.css b/test/fixtures/normalize/include-multiple/output.css
index b4008de..f6e4916 100644
--- a/test/fixtures/normalize/include-multiple/output.css
+++ b/test/fixtures/normalize/include-multiple/output.css
@@ -2,20 +2,17 @@
 /* Document
        ========================================================================== */
 /**
-     * 1. Change the default font family in all browsers (opinionated).
-     * 2. Correct the line height in all browsers.
-     * 3. Prevent adjustments of font size after orientation changes in
+     * 1. Correct the line height in all browsers.
+     * 2. Prevent adjustments of font size after orientation changes in
      *    IE on Windows Phone and in iOS.
      */
 html {
-  font-family: sans-serif;
-  /* 1 */
   line-height: 1.15;
-  /* 2 */
+  /* 1 */
   -ms-text-size-adjust: 100%;
-  /* 3 */
+  /* 2 */
   -webkit-text-size-adjust: 100%;
-  /* 3 */ }
+  /* 2 */ }
 
 /* Sections
        ========================================================================== */
diff --git a/test/fixtures/normalize/include-single/output.css b/test/fixtures/normalize/include-single/output.css
index 71978f3..8402199 100644
--- a/test/fixtures/normalize/include-single/output.css
+++ b/test/fixtures/normalize/include-single/output.css
@@ -10,11 +10,3 @@ a {
   /* 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; }
diff --git a/test/fixtures/normalize/include-string/output.css b/test/fixtures/normalize/include-string/output.css
index 48c3f52..6820a40 100644
--- a/test/fixtures/normalize/include-string/output.css
+++ b/test/fixtures/normalize/include-string/output.css
@@ -2,7 +2,7 @@
 /* Text-level semantics
        ========================================================================== */
 /**
-     * 1. Remove the bottom border in Firefox 39-.
+     * 1. Remove the bottom border in Chrome 57- and Firefox 39-.
      * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
      */
 abbr[title] {
diff --git a/test/fixtures/variables/default/output.css b/test/fixtures/variables/default/output.css
index 429af58..d725150 100644
--- a/test/fixtures/variables/default/output.css
+++ b/test/fixtures/variables/default/output.css
@@ -2,20 +2,17 @@
 /* Document
        ========================================================================== */
 /**
-     * 1. Change the default font family in all browsers (opinionated).
-     * 2. Correct the line height in all browsers.
-     * 3. Prevent adjustments of font size after orientation changes in
+     * 1. Correct the line height in all browsers.
+     * 2. Prevent adjustments of font size after orientation changes in
      *    IE on Windows Phone and in iOS.
      */
 html {
-  font-family: sans-serif;
-  /* 1 */
   line-height: 1.15;
-  /* 2 */
+  /* 1 */
   -ms-text-size-adjust: 100%;
-  /* 3 */
+  /* 2 */
   -webkit-text-size-adjust: 100%;
-  /* 3 */ }
+  /* 2 */ }
 
 /* Sections
        ========================================================================== */
@@ -99,18 +96,10 @@ a {
   -webkit-text-decoration-skip: objects;
   /* 2 */ }
 
-/**
-     * Remove the outline on focused links when they are also active or hovered
-     * in all browsers (opinionated).
-     */
-a:active,
-a:hover {
-  outline-width: 0; }
-
 /* Text-level semantics
        ========================================================================== */
 /**
-     * 1. Remove the bottom border in Firefox 39-.
+     * 1. Remove the bottom border in Chrome 57- and Firefox 39-.
      * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
      */
 abbr[title] {
@@ -330,12 +319,10 @@ input {
   /* 2 */ }
 
 /**
-     * Change the border, margin, and padding in all browsers (opinionated).
+     * Correct the padding in Firefox.
      */
 fieldset {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: 0.35em 0.625em 0.75em; }
+  padding: 0.35em 0.75em 0.625em; }
 
 /**
      * 1. Correct the text wrapping in Edge and IE.
diff --git a/test/fixtures/variables/font/output.css b/test/fixtures/variables/font/output.css
index 9f42c91..1e95491 100644
--- a/test/fixtures/variables/font/output.css
+++ b/test/fixtures/variables/font/output.css
@@ -2,21 +2,20 @@
 /* Document
        ========================================================================== */
 /**
-     * 1. Change the default font family in all browsers (opinionated).
-     * 2. Correct the line height in all browsers.
-     * 3. Prevent adjustments of font size after orientation changes in
+     * 1. Correct the line height in all browsers.
+     * 2. Prevent adjustments of font size after orientation changes in
      *    IE on Windows Phone and in iOS.
      */
 html {
+  /* Change the default font family in all browsers (opinionated). */
   font-family: Arial, sans-serif;
-  /* 1 */
   font-size: 150%;
   line-height: 1.5em;
-  /* 2 */
+  /* 1 */
   -ms-text-size-adjust: 100%;
-  /* 3 */
+  /* 2 */
   -webkit-text-size-adjust: 100%;
-  /* 3 */ }
+  /* 2 */ }
 
 /* Sections
        ========================================================================== */
@@ -161,18 +160,10 @@ a {
   -webkit-text-decoration-skip: objects;
   /* 2 */ }
 
-/**
-     * Remove the outline on focused links when they are also active or hovered
-     * in all browsers (opinionated).
-     */
-a:active,
-a:hover {
-  outline-width: 0; }
-
 /* Text-level semantics
        ========================================================================== */
 /**
-     * 1. Remove the bottom border in Firefox 39-.
+     * 1. Remove the bottom border in Chrome 57- and Firefox 39-.
      * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
      */
 abbr[title] {
@@ -392,12 +383,10 @@ input {
   /* 2 */ }
 
 /**
-     * Change the border, margin, and padding in all browsers (opinionated).
+     * Correct the padding in Firefox.
      */
 fieldset {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: 0.35em 0.625em 0.75em; }
+  padding: 0.35em 0.75em 0.625em; }
 
 /**
      * 1. Correct the text wrapping in Edge and IE.
diff --git a/test/fixtures/variables/indent-amount-and-vertical-rhythm/output.css b/test/fixtures/variables/indent-amount-and-vertical-rhythm/output.css
index 013be00..60a333e 100644
--- a/test/fixtures/variables/indent-amount-and-vertical-rhythm/output.css
+++ b/test/fixtures/variables/indent-amount-and-vertical-rhythm/output.css
@@ -2,21 +2,18 @@
 /* Document
        ========================================================================== */
 /**
-     * 1. Change the default font family in all browsers (opinionated).
-     * 2. Correct the line height in all browsers.
-     * 3. Prevent adjustments of font size after orientation changes in
+     * 1. Correct the line height in all browsers.
+     * 2. Prevent adjustments of font size after orientation changes in
      *    IE on Windows Phone and in iOS.
      */
 html {
-  font-family: sans-serif;
-  /* 1 */
   font-size: 100%;
   line-height: 1.5em;
-  /* 2 */
+  /* 1 */
   -ms-text-size-adjust: 100%;
-  /* 3 */
+  /* 2 */
   -webkit-text-size-adjust: 100%;
-  /* 3 */ }
+  /* 2 */ }
 
 /* Sections
        ========================================================================== */
@@ -161,18 +158,10 @@ a {
   -webkit-text-decoration-skip: objects;
   /* 2 */ }
 
-/**
-     * Remove the outline on focused links when they are also active or hovered
-     * in all browsers (opinionated).
-     */
-a:active,
-a:hover {
-  outline-width: 0; }
-
 /* Text-level semantics
        ========================================================================== */
 /**
-     * 1. Remove the bottom border in Firefox 39-.
+     * 1. Remove the bottom border in Chrome 57- and Firefox 39-.
      * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
      */
 abbr[title] {
@@ -392,12 +381,10 @@ input {
   /* 2 */ }
 
 /**
-     * Change the border, margin, and padding in all browsers (opinionated).
+     * Correct the padding in Firefox.
      */
 fieldset {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: 0.35em 0.625em 0.75em; }
+  padding: 0.35em 0.75em 0.625em; }
 
 /**
      * 1. Correct the text wrapping in Edge and IE.
diff --git a/test/fixtures/variables/indent-amount/output.css b/test/fixtures/variables/indent-amount/output.css
index be92ac7..4cffa78 100644
--- a/test/fixtures/variables/indent-amount/output.css
+++ b/test/fixtures/variables/indent-amount/output.css
@@ -2,20 +2,17 @@
 /* Document
        ========================================================================== */
 /**
-     * 1. Change the default font family in all browsers (opinionated).
-     * 2. Correct the line height in all browsers.
-     * 3. Prevent adjustments of font size after orientation changes in
+     * 1. Correct the line height in all browsers.
+     * 2. Prevent adjustments of font size after orientation changes in
      *    IE on Windows Phone and in iOS.
      */
 html {
-  font-family: sans-serif;
-  /* 1 */
   line-height: 1.15;
-  /* 2 */
+  /* 1 */
   -ms-text-size-adjust: 100%;
-  /* 3 */
+  /* 2 */
   -webkit-text-size-adjust: 100%;
-  /* 3 */ }
+  /* 2 */ }
 
 /* Sections
        ========================================================================== */
@@ -99,18 +96,10 @@ a {
   -webkit-text-decoration-skip: objects;
   /* 2 */ }
 
-/**
-     * Remove the outline on focused links when they are also active or hovered
-     * in all browsers (opinionated).
-     */
-a:active,
-a:hover {
-  outline-width: 0; }
-
 /* Text-level semantics
        ========================================================================== */
 /**
-     * 1. Remove the bottom border in Firefox 39-.
+     * 1. Remove the bottom border in Chrome 57- and Firefox 39-.
      * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
      */
 abbr[title] {
@@ -330,12 +319,10 @@ input {
   /* 2 */ }
 
 /**
-     * Change the border, margin, and padding in all browsers (opinionated).
+     * Correct the padding in Firefox.
      */
 fieldset {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: 0.35em 0.625em 0.75em; }
+  padding: 0.35em 0.75em 0.625em; }
 
 /**
      * 1. Correct the text wrapping in Edge and IE.