diff --git a/package.json b/package.json
index 8c0e504365..e0bbaf5dfc 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
   ],
   "scripts": {
     "dist": "script/dist.js",
-    "stylelint": "stylelint --quiet src/**/*.scss",
+    "stylelint": "stylelint --quiet 'src/**/*.scss'",
     "eslint": "eslint deprecations.js __tests__ script",
     "prepublishOnly": "script/prepublish",
     "start": "yarn dev",
diff --git a/src/color-modes/themes/dark.scss b/src/color-modes/themes/dark.scss
index 51e837bfd0..5390a9e541 100644
--- a/src/color-modes/themes/dark.scss
+++ b/src/color-modes/themes/dark.scss
@@ -1,6 +1,6 @@
-@import "../../support/index.scss";
+@import '../../support/index.scss';
 
-@import "@primer/primitives/dist/scss/colors/_dark.scss";
+@import '@primer/primitives/dist/scss/colors/_dark.scss';
 
 @include color-mode-theme(dark) {
   @include primer-colors-dark;
diff --git a/src/color-modes/themes/dark_colorblind.scss b/src/color-modes/themes/dark_colorblind.scss
index d1b7442b73..0163491928 100644
--- a/src/color-modes/themes/dark_colorblind.scss
+++ b/src/color-modes/themes/dark_colorblind.scss
@@ -1,6 +1,6 @@
-@import "../../support/index.scss";
+@import '../../support/index.scss';
 
-@import "@primer/primitives/dist/scss/colors/_dark_colorblind.scss";
+@import '@primer/primitives/dist/scss/colors/_dark_colorblind.scss';
 
 @include color-mode-theme(dark_colorblind) {
   @include primer-colors-dark_colorblind;
diff --git a/src/color-modes/themes/dark_dimmed.scss b/src/color-modes/themes/dark_dimmed.scss
index 03671f17c9..04fff33933 100644
--- a/src/color-modes/themes/dark_dimmed.scss
+++ b/src/color-modes/themes/dark_dimmed.scss
@@ -1,6 +1,6 @@
-@import "../../support/index.scss";
+@import '../../support/index.scss';
 
-@import "@primer/primitives/dist/scss/colors/_dark_dimmed.scss";
+@import '@primer/primitives/dist/scss/colors/_dark_dimmed.scss';
 
 @include color-mode-theme(dark_dimmed) {
   @include primer-colors-dark_dimmed;
diff --git a/src/color-modes/themes/dark_high_contrast.scss b/src/color-modes/themes/dark_high_contrast.scss
index d76816425a..c1a46d227d 100644
--- a/src/color-modes/themes/dark_high_contrast.scss
+++ b/src/color-modes/themes/dark_high_contrast.scss
@@ -1,6 +1,6 @@
-@import "../../support/index.scss";
+@import '../../support/index.scss';
 
-@import "@primer/primitives/dist/scss/colors/_dark_high_contrast.scss";
+@import '@primer/primitives/dist/scss/colors/_dark_high_contrast.scss';
 
 @include color-mode-theme(dark_high_contrast) {
   @include primer-colors-dark_high_contrast;
diff --git a/src/color-modes/themes/light.scss b/src/color-modes/themes/light.scss
index 02f081b781..5190756d26 100644
--- a/src/color-modes/themes/light.scss
+++ b/src/color-modes/themes/light.scss
@@ -1,6 +1,6 @@
-@import "../../support/index.scss";
+@import '../../support/index.scss';
 
-@import "@primer/primitives/dist/scss/colors/_light.scss";
+@import '@primer/primitives/dist/scss/colors/_light.scss';
 
 @include color-mode-theme(light, true) {
   @include primer-colors-light;
diff --git a/src/color-modes/themes/light_colorblind.scss b/src/color-modes/themes/light_colorblind.scss
index e087705317..64ad6b2f87 100644
--- a/src/color-modes/themes/light_colorblind.scss
+++ b/src/color-modes/themes/light_colorblind.scss
@@ -1,6 +1,6 @@
-@import "../../support/index.scss";
+@import '../../support/index.scss';
 
-@import "@primer/primitives/dist/scss/colors/_light_colorblind.scss";
+@import '@primer/primitives/dist/scss/colors/_light_colorblind.scss';
 
 @include color-mode-theme(light_colorblind) {
   @include primer-colors-light_colorblind;
diff --git a/src/color-modes/themes/light_high_contrast.scss b/src/color-modes/themes/light_high_contrast.scss
index 0f3978fe0c..7664fc48bc 100644
--- a/src/color-modes/themes/light_high_contrast.scss
+++ b/src/color-modes/themes/light_high_contrast.scss
@@ -1,6 +1,6 @@
-@import "../../support/index.scss";
+@import '../../support/index.scss';
 
-@import "@primer/primitives/dist/scss/colors/_light_high_contrast.scss";
+@import '@primer/primitives/dist/scss/colors/_light_high_contrast.scss';
 
 @include color-mode-theme(light_high_contrast) {
   @include primer-colors-light_high_contrast;
diff --git a/src/docs.scss b/src/docs.scss
index 21cfdf2abe..fdf7828f07 100644
--- a/src/docs.scss
+++ b/src/docs.scss
@@ -9,9 +9,9 @@
 // Only meant for the docs at https://primer.style/css
 
 // CSS color variables
-@import "./color-modes/index.scss";
+@import './color-modes/index.scss';
 
 // Global requirements
-@import "./core/index.scss";
-@import "./product/index.scss";
-@import "./marketing/index.scss";
+@import './core/index.scss';
+@import './product/index.scss';
+@import './marketing/index.scss';
diff --git a/src/index.scss b/src/index.scss
index f2059d2d74..3162442eba 100644
--- a/src/index.scss
+++ b/src/index.scss
@@ -11,9 +11,9 @@
 // Should you need specific files, you can easily use separate `@import`s.
 
 // CSS color variables
-@import "./color-modes/index.scss";
+@import './color-modes/index.scss';
 
 // Global requirements
-@import "./core/index.scss";
-@import "./product/index.scss";
-@import "./marketing/index.scss";
+@import './core/index.scss';
+@import './product/index.scss';
+@import './marketing/index.scss';
diff --git a/src/marketing/buttons/button.scss b/src/marketing/buttons/button.scss
index 12f779f0ca..31a35cf248 100644
--- a/src/marketing/buttons/button.scss
+++ b/src/marketing/buttons/button.scss
@@ -1,25 +1,24 @@
 .btn-mktg {
-  color: var(--color-canvas-default);
   position: relative;
   z-index: 1;
   display: inline-block;
-  appearance: none !important;
   // stylelint-disable-next-line primer/spacing
   padding: 0.9rem 1.5rem 1.1rem;
   // stylelint-disable-next-line primer/typography
   font-size: 1rem;
   font-weight: $font-weight-bold;
   line-height: 1;
+  color: var(--color-canvas-default);
   text-align: center;
   white-space: nowrap;
   vertical-align: middle;
   user-select: none;
+  background: linear-gradient(180deg, rgba(255 255 255 / 0.15) 0%, rgba(255 255 255 / 0) 100%), var(--color-mktg-btn-bg) !important;
   border: 0;
   // stylelint-disable-next-line primer/borders
   border-radius: 0.375rem;
-  background: linear-gradient(180deg, rgba(255 255 255 / 0.15) 0%, rgba(255 255 255 / 0) 100%),
-    var(--color-mktg-btn-bg) !important;
   transition: box-shadow 0.2s;
+  appearance: none !important;
 
   &::before {
     position: absolute;
@@ -28,11 +27,11 @@
     bottom: 0;
     left: 0;
     z-index: -1;
-    content: "";
-    // stylelint-disable-next-line primer/borders
+    content: '';
+    // stylelint-disable-next-line primer/colors
+    background: linear-gradient(180deg, rgba(255 255 255 / 0.15) 0%, rgba(255 255 255 / 0) 100%) !important;
     border-radius: inherit;
     opacity: 0;
-    background: linear-gradient(180deg, rgba(255 255 255 / 0.15) 0%, rgba(255 255 255 / 0) 100%) !important;
     opacity: 0;
     transition: opacity 0.2s;
     background-blend-mode: normal;
@@ -44,8 +43,8 @@
 
   &:focus,
   &.focus {
-    box-shadow: var(--color-mktg-btn-shadow-focus), var(--color-mktg-btn-shadow-hover) !important;
     outline: 0;
+    box-shadow: var(--color-mktg-btn-shadow-focus), var(--color-mktg-btn-shadow-hover) !important;
   }
 
   &:hover,
@@ -62,6 +61,7 @@
 
   &:active {
     outline: none;
+    // stylelint-disable-next-line primer/box-shadow
     box-shadow: 0 0 0 transparent;
 
     &::before {
@@ -89,10 +89,12 @@
   }
 
   &:active {
+    // stylelint-disable-next-line primer/box-shadow
     box-shadow: var(--color-fg-default) 0 0 0 3px inset !important;
   }
 
   &:disabled {
+    // stylelint-disable-next-line primer/box-shadow
     box-shadow: var(--color-fg-subtle) 0 0 0 1px inset !important;
   }
 }
@@ -117,14 +119,18 @@
 }
 
 .btn-signup-mktg {
+  // stylelint-disable-next-line primer/colors
   color: #fff;
+  // stylelint-disable-next-line primer/colors
   background: linear-gradient(180deg, rgba(52, 183, 89, 0.15) 0%, rgba(46, 164, 79, 0) 100%), rgb(46, 164, 79) !important;
 
   &::before {
+    // stylelint-disable-next-line primer/colors
     background: linear-gradient(180deg, rgba(52, 183, 89, 0.15) 0%, rgba(46, 164, 79, 0) 100%) !important;
   }
 
   &:focus {
+    // stylelint-disable-next-line primer/box-shadow
     box-shadow: rgba(46, 164, 79, 0.45) 0 0 0 4px !important;
   }
 }
diff --git a/src/marketing/buttons/index.scss b/src/marketing/buttons/index.scss
index 6ff5227f91..de8b941e92 100644
--- a/src/marketing/buttons/index.scss
+++ b/src/marketing/buttons/index.scss
@@ -1,3 +1,3 @@
 // support files
-@import "../support/index.scss";
-@import "./button.scss";
+@import '../support/index.scss';
+@import './button.scss';
diff --git a/src/marketing/support/index.scss b/src/marketing/support/index.scss
index 8c8e4790ee..a1d235987e 100644
--- a/src/marketing/support/index.scss
+++ b/src/marketing/support/index.scss
@@ -1,2 +1,2 @@
-@import "../../support/index.scss";
-@import "./variables.scss";
+@import '../../support/index.scss';
+@import './variables.scss';
diff --git a/src/marketing/support/variables.scss b/src/marketing/support/variables.scss
index 71c764ee78..c6f3178323 100644
--- a/src/marketing/support/variables.scss
+++ b/src/marketing/support/variables.scss
@@ -1,6 +1,5 @@
-// stylelint-disable unit-no-unknown
 // Typography
-$marketing-font-path: "/fonts/" !default;
+$marketing-font-path: '/fonts/' !default;
 
 $font-mktg: $body-font !default;
 $font-weight-medium: 450 !default;
@@ -122,7 +121,7 @@ $transition-time: 0.4s !default;
 $ease-mktg: cubic-bezier(0.16, 1, 0.3, 1) !default;
 
 $marketing-position-variants: (
-  "": "",
-  md: "-md",
-  lg: "-lg",
+  '': '',
+  md: '-md',
+  lg: '-lg',
 ) !default;
diff --git a/src/marketing/type/index.scss b/src/marketing/type/index.scss
index 5ddc98f8f5..cf9891d449 100644
--- a/src/marketing/type/index.scss
+++ b/src/marketing/type/index.scss
@@ -1,3 +1,3 @@
 // support files
-@import "../support/index.scss";
-@import "./typography.scss";
+@import '../support/index.scss';
+@import './typography.scss';
diff --git a/src/marketing/type/typography.scss b/src/marketing/type/typography.scss
index ba7c6c8676..8520fd2a4f 100644
--- a/src/marketing/type/typography.scss
+++ b/src/marketing/type/typography.scss
@@ -19,20 +19,20 @@
     $pairing-md: map-get($mktg-header-pairings, nth($sizes, 2));
     $pairing-lg: map-get($mktg-header-pairings, nth($sizes, 3));
 
-    font-size: map-get($pairing, "size") !important;
-    line-height: map-get($pairing, "lh") !important;
-    @if (map-get($pairing, "size") >= $mktg-header-weight-threshold) { font-weight: $mktg-header-weight-large !important; }
+    font-size: map-get($pairing, 'size') !important;
+    line-height: map-get($pairing, 'lh') !important;
+    @if (map-get($pairing, 'size') >= $mktg-header-weight-threshold) { font-weight: $mktg-header-weight-large !important; }
 
     @if (nth($sizes, 1) != nth($sizes, 2)) {
       @include breakpoint(md) {
-        font-size: map-get($pairing-md, "size") !important;
-        line-height: map-get($pairing-md, "lh") !important;
+        font-size: map-get($pairing-md, 'size') !important;
+        line-height: map-get($pairing-md, 'lh') !important;
 
-        @if (map-get($pairing-md, "size") >= $mktg-header-spacing-threshold and map-get($pairing, "size") < $mktg-header-spacing-threshold) {
+        @if (map-get($pairing-md, 'size') >= $mktg-header-spacing-threshold and map-get($pairing, 'size') < $mktg-header-spacing-threshold) {
           letter-spacing: $mktg-header-spacing-large !important;
         }
 
-        @if (map-get($pairing-md, "size") >= $mktg-header-weight-threshold and map-get($pairing, "size") < $mktg-header-weight-threshold) {
+        @if (map-get($pairing-md, 'size') >= $mktg-header-weight-threshold and map-get($pairing, 'size') < $mktg-header-weight-threshold) {
           font-weight: $mktg-header-weight-large !important;
         }
       }
@@ -40,14 +40,14 @@
 
     @if (nth($sizes, 2) != nth($sizes, 3)) {
       @include breakpoint(lg) {
-        font-size: map-get($pairing-lg, "size") !important;
-        line-height: map-get($pairing-lg, "lh") !important;
+        font-size: map-get($pairing-lg, 'size') !important;
+        line-height: map-get($pairing-lg, 'lh') !important;
 
-        @if (map-get($pairing-lg, "size") >= $mktg-header-spacing-threshold and map-get($pairing-md, "size") < $mktg-header-spacing-threshold) {
+        @if (map-get($pairing-lg, 'size') >= $mktg-header-spacing-threshold and map-get($pairing-md, 'size') < $mktg-header-spacing-threshold) {
           letter-spacing: $mktg-header-spacing-large !important;
         }
 
-        @if (map-get($pairing-lg, "size") >= $mktg-header-weight-threshold and map-get($pairing-md, "size") < $mktg-header-weight-threshold) {
+        @if (map-get($pairing-lg, 'size') >= $mktg-header-weight-threshold and map-get($pairing-md, 'size') < $mktg-header-weight-threshold) {
           font-weight: $mktg-header-weight-large !important;
         }
       }
@@ -73,21 +73,21 @@
     $pairing-md: map-get($mktg-body-pairings, nth($sizes, 2));
     $pairing-lg: map-get($mktg-body-pairings, nth($sizes, 3));
 
-    font-size: map-get($pairing, "size") !important;
-    line-height: map-get($pairing, "lh") !important;
-    @if (map-get($pairing, "size") >= $mktg-body-spacing-threshold) { letter-spacing: $mktg-body-spacing-large !important; }
-    @if (map-get($pairing, "size") >= $mktg-body-weight-threshold) { font-weight: $font-weight-semibold; }
+    font-size: map-get($pairing, 'size') !important;
+    line-height: map-get($pairing, 'lh') !important;
+    @if (map-get($pairing, 'size') >= $mktg-body-spacing-threshold) { letter-spacing: $mktg-body-spacing-large !important; }
+    @if (map-get($pairing, 'size') >= $mktg-body-weight-threshold) { font-weight: $font-weight-semibold; }
 
     @if (nth($sizes, 1) != nth($sizes, 2)) {
       @include breakpoint(md) {
-        font-size: map-get($pairing-md, "size") !important;
-        line-height: map-get($pairing-md, "lh") !important;
+        font-size: map-get($pairing-md, 'size') !important;
+        line-height: map-get($pairing-md, 'lh') !important;
 
-        @if (map-get($pairing-md, "size") >= $mktg-body-spacing-threshold and map-get($pairing, "size") < $mktg-body-spacing-threshold) {
+        @if (map-get($pairing-md, 'size') >= $mktg-body-spacing-threshold and map-get($pairing, 'size') < $mktg-body-spacing-threshold) {
           letter-spacing: $mktg-body-spacing-large !important;
         }
 
-        @if (map-get($pairing-md, "size") >= $mktg-body-weight-threshold and map-get($pairing, "size") < $mktg-body-weight-threshold) {
+        @if (map-get($pairing-md, 'size') >= $mktg-body-weight-threshold and map-get($pairing, 'size') < $mktg-body-weight-threshold) {
           font-weight: $font-weight-medium;
         }
       }
@@ -95,14 +95,14 @@
 
     @if (nth($sizes, 2) != nth($sizes, 3)) {
       @include breakpoint(lg) {
-        font-size: map-get($pairing-lg, "size") !important;
-        line-height: map-get($pairing-lg, "lh") !important;
+        font-size: map-get($pairing-lg, 'size') !important;
+        line-height: map-get($pairing-lg, 'lh') !important;
 
-        @if (map-get($pairing-lg, "size") >= $mktg-body-spacing-threshold and map-get($pairing-md, "size") < $mktg-body-spacing-threshold) {
+        @if (map-get($pairing-lg, 'size') >= $mktg-body-spacing-threshold and map-get($pairing-md, 'size') < $mktg-body-spacing-threshold) {
           letter-spacing: $mktg-body-spacing-large !important;
         }
 
-        @if (map-get($pairing-lg, "size") >= $mktg-body-weight-threshold and map-get($pairing-md, "size") < $mktg-body-weight-threshold) {
+        @if (map-get($pairing-lg, 'size') >= $mktg-body-weight-threshold and map-get($pairing-md, 'size') < $mktg-body-weight-threshold) {
           font-weight: $font-weight-medium;
         }
       }
diff --git a/src/marketing/utilities/index.scss b/src/marketing/utilities/index.scss
index ae7527ced6..b32b5340b6 100644
--- a/src/marketing/utilities/index.scss
+++ b/src/marketing/utilities/index.scss
@@ -1,6 +1,6 @@
-@import "../support/index.scss";
+@import '../support/index.scss';
 // utilities
-@import "./animations.scss";
-@import "./borders.scss";
-@import "./filters.scss";
-@import "./layout.scss";
+@import './animations.scss';
+@import './borders.scss';
+@import './filters.scss';
+@import './layout.scss';
diff --git a/src/marketing/utilities/layout.scss b/src/marketing/utilities/layout.scss
index 7575289b45..3445c5494c 100644
--- a/src/marketing/utilities/layout.scss
+++ b/src/marketing/utilities/layout.scss
@@ -6,7 +6,7 @@
 @each $breakpoint, $variant in $marketing-position-variants {
   @include breakpoint($breakpoint) {
     @each $scale, $size in $spacer-map-extended {
-      @if ($size != 0 or $variant != "") {
+      @if ($size != 0 or $variant != '') {
         .top#{$variant}-#{$scale}     { top: $size !important; }
         .right#{$variant}-#{$scale}   { right: $size !important; }
         .bottom#{$variant}-#{$scale}  { bottom: $size !important; }
diff --git a/src/support/mixins/layout.scss b/src/support/mixins/layout.scss
index a6d30cf187..a3c51d705f 100644
--- a/src/support/mixins/layout.scss
+++ b/src/support/mixins/layout.scss
@@ -1,7 +1,7 @@
 // Responsive media queries
 
 @mixin breakpoint($breakpoint) {
-  @if $breakpoint == "" {
+  @if $breakpoint == '' {
     @content;
   }
 
@@ -19,8 +19,8 @@
 
     // If the key doesn't exist in the map
     @else {
-      @warn "Unfortunately, no value could be retrieved from `#{$breakpoint}`. "
-        + "Please make sure it is defined in `$breakpoints` map.";
+      @warn 'Unfortunately, no value could be retrieved from `#{$breakpoint}`. '
+        + 'Please make sure it is defined in `$breakpoints` map.';
     }
   }
 }
@@ -47,12 +47,12 @@
 @mixin clearfix {
   &::before {
     display: table;
-    content: "";
+    content: '';
   }
 
   &::after {
     display: table;
     clear: both;
-    content: "";
+    content: '';
   }
 }
diff --git a/src/support/mixins/misc.scss b/src/support/mixins/misc.scss
index b75156bbf5..c27ac96a75 100644
--- a/src/support/mixins/misc.scss
+++ b/src/support/mixins/misc.scss
@@ -10,7 +10,7 @@
     width: 8px;
     height: 16px;
     pointer-events: none;
-    content: " ";
+    content: ' ';
     clip-path: polygon(0 50%, 100% 0, 100% 100%);
   }
 
diff --git a/src/support/variables/layout.scss b/src/support/variables/layout.scss
index fec2d34f83..cc56fe7f81 100644
--- a/src/support/variables/layout.scss
+++ b/src/support/variables/layout.scss
@@ -150,11 +150,11 @@ $breakpoints: (
 // breakpoints and create both responsive and non-responsive classes in one
 // loop:
 $responsive-variants: (
-  "": "",
-  sm: "-sm",
-  md: "-md",
-  lg: "-lg",
-  xl: "-xl",
+  '': '',
+  sm: '-sm',
+  md: '-md',
+  lg: '-lg',
+  xl: '-xl',
 ) !default;
 
 // responive utility position values
diff --git a/src/support/variables/typography.scss b/src/support/variables/typography.scss
index cd22002895..dc46d928c8 100644
--- a/src/support/variables/typography.scss
+++ b/src/support/variables/typography.scss
@@ -32,7 +32,7 @@ $lh-condensed: 1.25 !default;
 $lh-default: 1.5 !default;
 
 // Font stacks
-$body-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji" !default;
+$body-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji' !default;
 
 // Monospace font stack
 // Note: SFMono-Regular needs to come before SF Mono to fix an older version of the font in Chrome