From f5df15a5c890d3ec0c598d1350cc4b4485d58b26 Mon Sep 17 00:00:00 2001
From: Kevin Heis <heiskr@users.noreply.github.com>
Date: Wed, 8 Oct 2025 11:07:23 -0700
Subject: [PATCH] Replace `sx` and inline `style` declarations with CSS modules
 (#57848)

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
---
 .../components/GroupedEvents.module.scss      | 16 +++++++++
 src/audit-logs/components/GroupedEvents.tsx   | 14 ++++----
 .../components/DefaultLayout.module.scss      |  3 ++
 src/frame/components/DefaultLayout.tsx        |  6 ++--
 src/frame/components/GenericError.module.scss |  3 ++
 src/frame/components/GenericError.tsx         |  4 ++-
 .../components/page-header/Header.module.scss |  4 +++
 src/frame/components/page-header/Header.tsx   |  9 +++--
 .../HeaderSearchAndWidgets.module.scss        | 26 +++++++++++++++
 .../page-header/HeaderSearchAndWidgets.tsx    | 32 ++----------------
 .../components/sidebar/SidebarNav.module.scss | 33 +++++++++++++++++++
 src/frame/components/sidebar/SidebarNav.tsx   | 29 ++++++++--------
 .../MarkdownContent.module.scss               | 11 +++++++
 .../UnrenderedMarkdownContent.tsx             | 12 +++----
 src/frame/components/ui/MiniTocs/MiniTocs.tsx |  8 +----
 .../ui/MiniTocs/Minitocs.module.scss          | 16 +++++++++
 .../PermissionsStatement.module.scss          |  6 ++++
 .../PermissionsStatement.tsx                  |  7 ++--
 .../ui/ScrollButton/ScrollButton.module.scss  |  5 +++
 .../ui/ScrollButton/ScrollButton.tsx          |  3 +-
 src/graphql/pages/explorer.module.scss        |  3 ++
 src/graphql/pages/explorer.tsx                |  5 +--
 .../components/LanguagePicker.module.scss     | 12 +++++++
 src/languages/components/LanguagePicker.tsx   | 11 +++----
 .../components/GHESReleaseNotePatch.tsx       |  8 ++---
 .../components/PatchNotes.module.scss         |  9 +++++
 .../components/RestCodeSamples.module.scss    |  1 +
 src/rest/components/RestCodeSamples.tsx       | 25 --------------
 src/rest/components/RestOperation.module.scss |  4 +++
 src/rest/components/RestOperation.tsx         |  6 ++--
 src/tools/components/Fields.module.scss       |  7 ++++
 src/tools/components/Fields.tsx               | 12 +++----
 src/tools/components/Picker.module.scss       | 12 +++++++
 src/tools/components/Picker.tsx               | 10 ++----
 src/webhooks/components/Webhook.tsx           |  4 +--
 .../WebhookPayloadExample.module.scss         |  4 +++
 36 files changed, 246 insertions(+), 134 deletions(-)
 create mode 100644 src/audit-logs/components/GroupedEvents.module.scss
 create mode 100644 src/frame/components/DefaultLayout.module.scss
 create mode 100644 src/frame/components/GenericError.module.scss
 create mode 100644 src/frame/components/sidebar/SidebarNav.module.scss
 create mode 100644 src/frame/components/ui/PermissionsStatement/PermissionsStatement.module.scss
 create mode 100644 src/graphql/pages/explorer.module.scss
 create mode 100644 src/languages/components/LanguagePicker.module.scss
 create mode 100644 src/tools/components/Picker.module.scss

diff --git a/src/audit-logs/components/GroupedEvents.module.scss b/src/audit-logs/components/GroupedEvents.module.scss
new file mode 100644
index 0000000000..b0c6f70f3e
--- /dev/null
+++ b/src/audit-logs/components/GroupedEvents.module.scss
@@ -0,0 +1,16 @@
+.eventItem {
+  margin-bottom: 3rem;
+}
+
+.eventAction {
+  font-style: normal;
+}
+
+.eventDetail {
+  margin-left: 1rem;
+  font-style: normal;
+}
+
+.eventDescription {
+  margin-left: 1rem;
+}
diff --git a/src/audit-logs/components/GroupedEvents.tsx b/src/audit-logs/components/GroupedEvents.tsx
index d5c161b03f..1240f328bc 100644
--- a/src/audit-logs/components/GroupedEvents.tsx
+++ b/src/audit-logs/components/GroupedEvents.tsx
@@ -4,6 +4,8 @@ import { HeadingLink } from '@/frame/components/article/HeadingLink'
 import { useTranslation } from '@/languages/components/useTranslation'
 import type { AuditLogEventT } from '../types'
 
+import styles from './GroupedEvents.module.scss'
+
 type Props = {
   auditLogEvents: AuditLogEventT[]
   category: string
@@ -47,15 +49,15 @@ export default function GroupedEvents({ auditLogEvents, category, categoryNote }
       )}
       <div>
         {auditLogEvents.map((event) => (
-          <div key={event.action} style={{ marginBottom: '3rem' }}>
+          <div key={event.action} className={styles.eventItem}>
             <dl>
-              <dt style={{ fontStyle: 'normal' }}>
+              <dt className={styles.eventAction}>
                 <code>{event.action}</code>
               </dt>
               <dd>{event.description}</dd>
 
-              <dt style={{ marginLeft: '1rem', fontStyle: 'normal' }}>{t('fields')}</dt>
-              <dd style={{ marginLeft: '1rem' }}>
+              <dt className={styles.eventDetail}>{t('fields')}</dt>
+              <dd className={styles.eventDescription}>
                 {event.fields
                   ? event.fields.map((field, index) => (
                       <span key={field}>
@@ -68,8 +70,8 @@ export default function GroupedEvents({ auditLogEvents, category, categoryNote }
 
               {event.docs_reference_links && event.docs_reference_links !== 'N/A' && (
                 <>
-                  <dt style={{ marginLeft: '1rem', fontStyle: 'normal' }}>{t('reference')}</dt>
-                  <dd style={{ marginLeft: '1rem' }}>{renderReferenceLinks(event)}</dd>
+                  <dt className={styles.eventDetail}>{t('reference')}</dt>
+                  <dd className={styles.eventDescription}>{renderReferenceLinks(event)}</dd>
                 </>
               )}
             </dl>
diff --git a/src/frame/components/DefaultLayout.module.scss b/src/frame/components/DefaultLayout.module.scss
new file mode 100644
index 0000000000..3612da8c34
--- /dev/null
+++ b/src/frame/components/DefaultLayout.module.scss
@@ -0,0 +1,3 @@
+.mainContent {
+  scroll-margin-top: 5rem;
+}
diff --git a/src/frame/components/DefaultLayout.tsx b/src/frame/components/DefaultLayout.tsx
index 69f8db0963..5c3d5bf299 100644
--- a/src/frame/components/DefaultLayout.tsx
+++ b/src/frame/components/DefaultLayout.tsx
@@ -15,6 +15,8 @@ import { useLanguages } from '@/languages/components/LanguagesContext'
 import { ClientSideLanguageRedirect } from './ClientSideLanguageRedirect'
 import { SearchOverlayContextProvider } from '@/search/components/context/SearchOverlayContext'
 
+import styles from './DefaultLayout.module.scss'
+
 const MINIMAL_RENDER = Boolean(JSON.parse(process.env.MINIMAL_RENDER || 'false'))
 
 type Props = { children?: React.ReactNode }
@@ -51,7 +53,7 @@ export const DefaultLayout = (props: Props) => {
           <Breadcrumbs />
         </div>
 
-        <main id="main-content" style={{ scrollMarginTop: '5rem' }}>
+        <main id="main-content" className={styles.mainContent}>
           {props.children}
         </main>
       </div>
@@ -150,7 +152,7 @@ export const DefaultLayout = (props: Props) => {
         {/* Need to set an explicit height for sticky elements since we also
           set overflow to auto */}
         <div className="flex-column flex-1 min-width-0">
-          <main id="main-content" style={{ scrollMarginTop: '5rem' }}>
+          <main id="main-content" className={styles.mainContent}>
             <DeprecationBanner />
             <RestBanner />
 
diff --git a/src/frame/components/GenericError.module.scss b/src/frame/components/GenericError.module.scss
new file mode 100644
index 0000000000..247697d1cb
--- /dev/null
+++ b/src/frame/components/GenericError.module.scss
@@ -0,0 +1,3 @@
+.logoContainer {
+  z-index: 3;
+}
diff --git a/src/frame/components/GenericError.tsx b/src/frame/components/GenericError.tsx
index 3e5f0b36c7..d2b59d47de 100644
--- a/src/frame/components/GenericError.tsx
+++ b/src/frame/components/GenericError.tsx
@@ -5,6 +5,8 @@ import { useRouter } from 'next/router'
 import { MarkGithubIcon, CommentDiscussionIcon } from '@primer/octicons-react'
 import { Lead } from '@/frame/components/ui/Lead'
 
+import styles from './GenericError.module.scss'
+
 export function GenericError() {
   return (
     <div className="min-h-screen d-flex flex-column">
@@ -44,7 +46,7 @@ export const SimpleHeader = () => {
         role="banner"
         aria-label="Main"
       >
-        <div className="d-flex flex-items-center" style={{ zIndex: 3 }} id="github-logo-mobile">
+        <div className={`d-flex flex-items-center ${styles.logoContainer}`} id="github-logo-mobile">
           <Link href={`/${router.locale}`} aria-hidden="true" tabIndex={-1}>
             <MarkGithubIcon size={32} className="color-fg-default" />
           </Link>
diff --git a/src/frame/components/page-header/Header.module.scss b/src/frame/components/page-header/Header.module.scss
index 27b117d456..3a5e1285e4 100644
--- a/src/frame/components/page-header/Header.module.scss
+++ b/src/frame/components/page-header/Header.module.scss
@@ -57,3 +57,7 @@
     padding: 0 !important;
   }
 }
+
+.headerContainer {
+  row-gap: 1rem;
+}
diff --git a/src/frame/components/page-header/Header.tsx b/src/frame/components/page-header/Header.tsx
index ed41545670..07e8409fcb 100644
--- a/src/frame/components/page-header/Header.tsx
+++ b/src/frame/components/page-header/Header.tsx
@@ -156,11 +156,10 @@ export const Header = () => {
         aria-label="Main"
       >
         <div
-          className="d-flex flex-justify-between p-2 flex-items-center flex-wrap"
-          style={{
-            // In the rare case of header overflow, create a pleasant gap between the rows
-            rowGap: '1rem',
-          }}
+          className={cx(
+            'd-flex flex-justify-between p-2 flex-items-center flex-wrap',
+            styles.headerContainer,
+          )}
           data-testid="desktop-header"
         >
           <div
diff --git a/src/frame/components/page-header/HeaderSearchAndWidgets.module.scss b/src/frame/components/page-header/HeaderSearchAndWidgets.module.scss
index 4920eadd6e..7a8b9ecdbc 100644
--- a/src/frame/components/page-header/HeaderSearchAndWidgets.module.scss
+++ b/src/frame/components/page-header/HeaderSearchAndWidgets.module.scss
@@ -10,3 +10,29 @@
     visibility: hidden !important;
   }
 }
+
+// The ... menu button when the smaller width search UI is open. Since the search
+// UI is open, we don't show the button at smaller widths but we do show it as
+// the browser width increases to md, and then at lg and above widths we hide
+// the button again since the pickers and sign-up button are shown in the header.
+.menuButtonSearchOpen {
+  margin-left: 0.5rem;
+  display: none;
+
+  @include breakpoint(md) {
+    display: inline-block;
+    margin-left: 0.25rem;
+  }
+}
+
+// The ... menu button when the smaller width search UI is closed, the button is
+// shown up to lg. At lg and above we don't show the button since the pickers
+// and sign-up button are shown in the header.
+.menuButtonSearchClosed {
+  margin-left: 1rem;
+
+  @include breakpoint(lg) {
+    margin-left: 0;
+    display: none;
+  }
+}
diff --git a/src/frame/components/page-header/HeaderSearchAndWidgets.tsx b/src/frame/components/page-header/HeaderSearchAndWidgets.tsx
index 1d5f6e9c8c..c400fc6a3e 100644
--- a/src/frame/components/page-header/HeaderSearchAndWidgets.tsx
+++ b/src/frame/components/page-header/HeaderSearchAndWidgets.tsx
@@ -55,36 +55,8 @@ export function HeaderSearchAndWidgets({ width, isSearchOpen, SearchButton }: Pr
                 data-testid="mobile-menu"
                 icon={KebabHorizontalIcon}
                 aria-label={t('header.open_menu_label')}
-                sx={
-                  isSearchOpen
-                    ? // The ... menu button when the smaller width search UI is open.  Since the search
-                      // UI is open, we don't show the button at smaller widths but we do show it as
-                      // the browser width increases to md, and then at lg and above widths we hide
-                      // the button again since the pickers and sign-up button are shown in the header.
-                      {
-                        marginLeft: '8px',
-                        display: 'none',
-                        // breakpoint(md)
-                        '@media (min-width: 768px)': {
-                          display: 'inline-block',
-                          marginLeft: '4px',
-                        },
-                        // breakpoint(lg)
-                        '@media (min-width: 1012px)': {
-                          display: 'inline-block',
-                          marginLeft: '4px',
-                        },
-                      }
-                    : // The ... menu button when the smaller width search UI is closed, the button is
-                      // shown up to md.  At lg and above we don't show the button since the pickers
-                      // and sign-up button are shown in the header.
-                      {
-                        marginLeft: '16px',
-                        '@media (min-width: 1012px)': {
-                          marginLeft: '0',
-                          display: 'none',
-                        },
-                      }
+                className={
+                  isSearchOpen ? styles.menuButtonSearchOpen : styles.menuButtonSearchClosed
                 }
               />
             </ActionMenu.Anchor>
diff --git a/src/frame/components/sidebar/SidebarNav.module.scss b/src/frame/components/sidebar/SidebarNav.module.scss
new file mode 100644
index 0000000000..2529269247
--- /dev/null
+++ b/src/frame/components/sidebar/SidebarNav.module.scss
@@ -0,0 +1,33 @@
+.sidebarFull {
+  // Fixed width for consistent sidebar layout
+  width: 326px;
+  // 65px accounts for the header height
+  height: calc(100vh - 65px);
+  top: 65px;
+}
+
+.sidebarContentFull {
+  width: 326px;
+  // 175px accounts for header (65px) + sidebar header (110px)
+  height: calc(100vh - 175px);
+}
+
+.sidebarContentOverlay {
+  // Padding to account for header + sidebar header so content isn't cut off
+  padding-bottom: 185px;
+}
+
+.sidebarContentOverlayRest {
+  // Extra padding for REST pages (includes API version picker)
+  padding-bottom: 250px;
+}
+
+.sidebarContentFullWithPadding {
+  // Padding to account for header + sidebar header so content isn't cut off
+  padding-bottom: 185px;
+}
+
+.sidebarContentFullWithPaddingRest {
+  // Extra padding for REST pages (includes API version picker)
+  padding-bottom: 250px;
+}
diff --git a/src/frame/components/sidebar/SidebarNav.tsx b/src/frame/components/sidebar/SidebarNav.tsx
index 54b9a6b633..e907a70068 100644
--- a/src/frame/components/sidebar/SidebarNav.tsx
+++ b/src/frame/components/sidebar/SidebarNav.tsx
@@ -8,6 +8,8 @@ import { AllProductsLink } from './AllProductsLink'
 import { ApiVersionPicker } from '@/rest/components/ApiVersionPicker'
 import { Link } from '@/frame/components/Link'
 
+import styles from './SidebarNav.module.scss'
+
 type Props = {
   variant?: 'full' | 'overlay'
 }
@@ -22,20 +24,15 @@ export const SidebarNav = ({ variant = 'full' }: Props) => {
     // Early access does not have a "home page" unless it's local dev
     (process.env.NODE_ENV === 'development' || currentProduct.id !== 'early-access')
 
-  // we need to roughly account for the site header height plus the height of
-  // the side nav header (which is taller when we show the API version picker)
-  // so we don't cut off the bottom of the sidebar
-  const sidebarPaddingBottom = isRestPage ? '250px' : '185px'
-
   const isSearch = currentProduct?.id === 'search'
 
   return (
     <div
       data-container="nav"
-      className={cx(variant === 'full' ? 'position-sticky d-none border-right d-xxl-block' : '')}
-      style={
-        variant === 'full' ? { width: 326, height: 'calc(100vh - 65px)', top: '65px' } : undefined
-      }
+      className={cx(
+        variant === 'full' ? 'position-sticky d-none border-right d-xxl-block' : '',
+        variant === 'full' && styles.sidebarFull,
+      )}
     >
       <nav
         aria-labelledby="allproducts-menu"
@@ -68,12 +65,16 @@ export const SidebarNav = ({ variant = 'full' }: Props) => {
               ? 'width-full d-xxl-none'
               : 'border-right d-none d-xxl-block overflow-y-auto',
             'bg-primary flex-shrink-0',
-          )}
-          style={
             variant === 'overlay'
-              ? { paddingBottom: sidebarPaddingBottom }
-              : { width: 326, height: 'calc(100vh - 175px)', paddingBottom: sidebarPaddingBottom }
-          }
+              ? isRestPage
+                ? styles.sidebarContentOverlayRest
+                : styles.sidebarContentOverlay
+              : styles.sidebarContentFull,
+            variant === 'full' &&
+              (isRestPage
+                ? styles.sidebarContentFullWithPaddingRest
+                : styles.sidebarContentFullWithPadding),
+          )}
           role="region"
           aria-label="Page navigation content"
         >
diff --git a/src/frame/components/ui/MarkdownContent/MarkdownContent.module.scss b/src/frame/components/ui/MarkdownContent/MarkdownContent.module.scss
index 8b556e559a..2a90c047dd 100644
--- a/src/frame/components/ui/MarkdownContent/MarkdownContent.module.scss
+++ b/src/frame/components/ui/MarkdownContent/MarkdownContent.module.scss
@@ -32,3 +32,14 @@
     }
   }
 }
+
+.codeBlockContainer {
+  position: relative;
+}
+
+.copyButton {
+  position: absolute;
+  right: -0.7rem;
+  top: -0.7rem;
+  z-index: 1;
+}
diff --git a/src/frame/components/ui/MarkdownContent/UnrenderedMarkdownContent.tsx b/src/frame/components/ui/MarkdownContent/UnrenderedMarkdownContent.tsx
index 5ec7573652..ef770b608c 100644
--- a/src/frame/components/ui/MarkdownContent/UnrenderedMarkdownContent.tsx
+++ b/src/frame/components/ui/MarkdownContent/UnrenderedMarkdownContent.tsx
@@ -12,6 +12,8 @@ import useCopyClipboard from '@/rest/components/useClipboard'
 import { EventType } from '@/events/types'
 import { sendEvent } from '@/events/components/events'
 
+import styles from './MarkdownContent.module.scss'
+
 export type MarkdownContentPropsT = {
   children: string
   className?: string
@@ -72,11 +74,11 @@ export const UnrenderedMarkdownContent = ({
       }
 
       return (
-        <div style={{ position: 'relative' }}>
+        <div className={styles.codeBlockContainer}>
           <IconButton
             size="small"
             icon={isCopied ? CheckIcon : CopyIcon}
-            className="btn-octicon"
+            className={cx('btn-octicon', styles.copyButton)}
             aria-label={getAriaLabel()}
             onClick={async () => {
               await copyToClipboard()
@@ -88,12 +90,6 @@ export const UnrenderedMarkdownContent = ({
                 eventGroupId: eventGroupId,
               })
             }}
-            sx={{
-              position: 'absolute',
-              right: '-.7rem',
-              top: '-.7rem',
-              zIndex: 1,
-            }}
           ></IconButton>
           <code {...props}>{props.children}</code>
         </div>
diff --git a/src/frame/components/ui/MiniTocs/MiniTocs.tsx b/src/frame/components/ui/MiniTocs/MiniTocs.tsx
index 80f398bb58..d2231e7e23 100644
--- a/src/frame/components/ui/MiniTocs/MiniTocs.tsx
+++ b/src/frame/components/ui/MiniTocs/MiniTocs.tsx
@@ -59,13 +59,7 @@ export function MiniTocs({ miniTocItems }: MiniTocsPropsT) {
       <Heading
         as="h2"
         id="in-this-article"
-        className="mb-1 ml-3"
-        sx={{
-          '@media (min-width: 1012px) and (max-width: 1400px)': {
-            marginTop: '2rem',
-          },
-          fontSize: 1,
-        }}
+        className={cx('mb-1 ml-3', styles.heading)}
         aria-label={t('miniToc')}
       >
         {t('miniToc')}
diff --git a/src/frame/components/ui/MiniTocs/Minitocs.module.scss b/src/frame/components/ui/MiniTocs/Minitocs.module.scss
index c8f5914c16..0b464a860b 100644
--- a/src/frame/components/ui/MiniTocs/Minitocs.module.scss
+++ b/src/frame/components/ui/MiniTocs/Minitocs.module.scss
@@ -1,3 +1,7 @@
+@import "@primer/css/support/variables/layout.scss";
+@import "@primer/css/support/mixins/layout.scss";
+@import "src/frame/stylesheets/breakpoint-xxl.scss";
+
 .indentNested {
   padding-inline-start: 0;
 }
@@ -18,3 +22,15 @@
     overflow-wrap: anywhere;
   }
 }
+
+.heading {
+  font-size: var(--text-body-size-small);
+
+  @include breakpoint(lg) {
+    margin-top: 2rem;
+
+    @include breakpoint-xxl {
+      margin-top: 0;
+    }
+  }
+}
diff --git a/src/frame/components/ui/PermissionsStatement/PermissionsStatement.module.scss b/src/frame/components/ui/PermissionsStatement/PermissionsStatement.module.scss
new file mode 100644
index 0000000000..9e9db2a8dc
--- /dev/null
+++ b/src/frame/components/ui/PermissionsStatement/PermissionsStatement.module.scss
@@ -0,0 +1,6 @@
+.permissionsBox {
+  border-radius: 0.625rem;
+  border-style: solid;
+  border-color: var(--borderColor-default);
+  padding: var(--base-size-16);
+}
diff --git a/src/frame/components/ui/PermissionsStatement/PermissionsStatement.tsx b/src/frame/components/ui/PermissionsStatement/PermissionsStatement.tsx
index 9e0abba246..de59fb55fa 100644
--- a/src/frame/components/ui/PermissionsStatement/PermissionsStatement.tsx
+++ b/src/frame/components/ui/PermissionsStatement/PermissionsStatement.tsx
@@ -1,8 +1,9 @@
-import { Box } from '@primer/react'
 import { PersonIcon, BriefcaseIcon } from '@primer/octicons-react'
 
 import { useTranslation } from '@/languages/components/useTranslation'
 
+import styles from './PermissionsStatement.module.scss'
+
 type Props = {
   product?: string
   permissions?: string
@@ -12,7 +13,7 @@ export function PermissionsStatement({ product, permissions }: Props) {
   const { t } = useTranslation('pages')
   if (!permissions && !product) return null
   return (
-    <Box sx={{ borderRadius: 10, borderStyle: 'solid', borderColor: 'border.default', p: 3 }}>
+    <div className={styles.permissionsBox}>
       <div data-search="hide" data-testid="permissions-callout">
         <div className="mb-3 d-inline-block">
           <h2 className="f4">{t('permissions_callout_title')}</h2>
@@ -30,6 +31,6 @@ export function PermissionsStatement({ product, permissions }: Props) {
           </div>
         )}
       </div>
-    </Box>
+    </div>
   )
 }
diff --git a/src/frame/components/ui/ScrollButton/ScrollButton.module.scss b/src/frame/components/ui/ScrollButton/ScrollButton.module.scss
index 429059c37c..ca0df1e259 100644
--- a/src/frame/components/ui/ScrollButton/ScrollButton.module.scss
+++ b/src/frame/components/ui/ScrollButton/ScrollButton.module.scss
@@ -16,3 +16,8 @@
   outline-offset: -2px;
   box-shadow: 0 0 0 4px inset; // A little wider for the border radius :shrug:
 }
+
+.scrollButton {
+  width: 2.5rem;
+  height: 2.5rem;
+}
diff --git a/src/frame/components/ui/ScrollButton/ScrollButton.tsx b/src/frame/components/ui/ScrollButton/ScrollButton.tsx
index 6cce1a4e62..1015cbe3ae 100644
--- a/src/frame/components/ui/ScrollButton/ScrollButton.tsx
+++ b/src/frame/components/ui/ScrollButton/ScrollButton.tsx
@@ -1,6 +1,7 @@
 import { useState, useEffect } from 'react'
 import cx from 'classnames'
 import { ChevronUpIcon } from '@primer/octicons-react'
+
 import styles from './ScrollButton.module.scss'
 
 const { transition200, opacity0, opacity100, customFocus } = styles
@@ -70,8 +71,8 @@ export const ScrollButton = ({ className, ariaLabel }: ScrollButtonPropsT) => {
           'tooltipped tooltipped-n tooltipped-no-delay btn circle border-1',
           'd-flex flex-items-center flex-justify-center',
           customFocus,
+          styles.scrollButton,
         )}
-        style={{ width: 40, height: 40 }}
         aria-label={ariaLabel}
       >
         <ChevronUpIcon />
diff --git a/src/graphql/pages/explorer.module.scss b/src/graphql/pages/explorer.module.scss
new file mode 100644
index 0000000000..ba567c8380
--- /dev/null
+++ b/src/graphql/pages/explorer.module.scss
@@ -0,0 +1,3 @@
+.explorerIframe {
+  height: 45rem;
+}
diff --git a/src/graphql/pages/explorer.tsx b/src/graphql/pages/explorer.tsx
index 33471d397b..a85bd3d320 100644
--- a/src/graphql/pages/explorer.tsx
+++ b/src/graphql/pages/explorer.tsx
@@ -9,6 +9,8 @@ import {
 } from '@/automated-pipelines/components/AutomatedPageContext'
 import { useEffect, useRef } from 'react'
 
+import styles from './explorer.module.scss'
+
 type Props = {
   mainContext: MainContextT
   graphqlExplorerUrl: string
@@ -34,8 +36,7 @@ export default function GQLExplorer({
           <div>
             <iframe
               ref={graphiqlRef}
-              style={{ height: 715 }}
-              className="border width-full"
+              className={`border width-full ${styles.explorerIframe}`}
               scrolling="no"
               src={graphqlExplorerUrl}
               title="GitHub GraphQL API"
diff --git a/src/languages/components/LanguagePicker.module.scss b/src/languages/components/LanguagePicker.module.scss
new file mode 100644
index 0000000000..70f6012bc0
--- /dev/null
+++ b/src/languages/components/LanguagePicker.module.scss
@@ -0,0 +1,12 @@
+.menuButton {
+  height: auto;
+  text-align: left;
+
+  span:first-child {
+    display: inline;
+  }
+}
+
+.languageLabel {
+  white-space: pre-wrap;
+}
diff --git a/src/languages/components/LanguagePicker.tsx b/src/languages/components/LanguagePicker.tsx
index 72edd94823..b2ed1b50b6 100644
--- a/src/languages/components/LanguagePicker.tsx
+++ b/src/languages/components/LanguagePicker.tsx
@@ -6,6 +6,8 @@ import { useTranslation } from '@/languages/components/useTranslation'
 import { useUserLanguage } from '@/languages/components/useUserLanguage'
 import { ActionList, ActionMenu, IconButton } from '@primer/react'
 
+import styles from './LanguagePicker.module.scss'
+
 type Props = {
   xs?: boolean
   mediumOrLower?: boolean
@@ -79,15 +81,10 @@ export const LanguagePicker = ({ xs, mediumOrLower }: Props) => {
             <ActionMenu.Anchor>
               <ActionMenu.Button
                 variant="invisible"
-                className="color-fg-default width-full"
+                className={`color-fg-default width-full ${styles.menuButton}`}
                 aria-label={`Select language: current language is ${selectedLang.name}`}
-                sx={{
-                  height: 'auto',
-                  textAlign: 'left',
-                  'span:first-child': { display: 'inline' },
-                }}
               >
-                <span style={{ whiteSpace: 'pre-wrap' }}>{t('language_picker_label') + '\n'}</span>
+                <span className={styles.languageLabel}>{t('language_picker_label') + '\n'}</span>
                 <span className="color-fg-muted text-normal f6">{selectedLang.name}</span>
               </ActionMenu.Button>
             </ActionMenu.Anchor>
diff --git a/src/release-notes/components/GHESReleaseNotePatch.tsx b/src/release-notes/components/GHESReleaseNotePatch.tsx
index 3942eb5322..9da1f480a8 100644
--- a/src/release-notes/components/GHESReleaseNotePatch.tsx
+++ b/src/release-notes/components/GHESReleaseNotePatch.tsx
@@ -6,6 +6,8 @@ import { PatchNotes } from './PatchNotes'
 import { Link } from '@/frame/components/Link'
 import { CurrentVersion, ReleaseNotePatch, GHESMessage } from './types'
 
+import styles from './PatchNotes.module.scss'
+
 type Props = {
   patch: ReleaseNotePatch
   currentVersion: CurrentVersion
@@ -26,8 +28,7 @@ export function GHESReleaseNotePatch({
   return (
     <div ref={containerRef} className="mb-10 pb-6" id={patch.version}>
       <header
-        style={{ zIndex: 1, marginTop: -1 }}
-        className="container-md border-top border-bottom px-3 pt-4 pb-2"
+        className={`container-md border-top border-bottom px-3 pt-4 pb-2 ${styles.patchHeader}`}
       >
         <div className="d-flex flex-justify-between flex-wrap">
           <h2 className="border-bottom-0 m-0 p-0 mt-2">
@@ -36,8 +37,7 @@ export function GHESReleaseNotePatch({
 
           {patch.release_candidate && (
             <span
-              className="IssueLabel color-bg-attention-emphasis color-fg-on-emphasis ml-3 flex-items-center d-inline-flex"
-              style={{ whiteSpace: 'pre' }}
+              className={`IssueLabel color-bg-attention-emphasis color-fg-on-emphasis ml-3 flex-items-center d-inline-flex ${styles.releaseLabel}`}
             >
               Release Candidate
             </span>
diff --git a/src/release-notes/components/PatchNotes.module.scss b/src/release-notes/components/PatchNotes.module.scss
index 753442dfef..eb32ff8c75 100644
--- a/src/release-notes/components/PatchNotes.module.scss
+++ b/src/release-notes/components/PatchNotes.module.scss
@@ -14,3 +14,12 @@
     top: 65px;
   }
 }
+
+.patchHeader {
+  z-index: 1;
+  margin-top: -1px;
+}
+
+.releaseLabel {
+  white-space: pre;
+}
diff --git a/src/rest/components/RestCodeSamples.module.scss b/src/rest/components/RestCodeSamples.module.scss
index 7c52e77194..fd0bf5215c 100644
--- a/src/rest/components/RestCodeSamples.module.scss
+++ b/src/rest/components/RestCodeSamples.module.scss
@@ -30,6 +30,7 @@
 
 .responseCodeBlock {
   min-height: 120px;
+  max-height: 60vh;
 }
 
 .segmentedControl {
diff --git a/src/rest/components/RestCodeSamples.tsx b/src/rest/components/RestCodeSamples.tsx
index 7488919d28..b03338fbbd 100644
--- a/src/rest/components/RestCodeSamples.tsx
+++ b/src/rest/components/RestCodeSamples.tsx
@@ -100,7 +100,6 @@ export function RestCodeSamples({ operation, slug, heading }: Props) {
   const [selectedLanguage, setSelectedLanguage] = useState(languageSelectOptions[0])
   const [selectedExample, setSelectedExample] = useState(exampleSelectOptions[0])
   const [selectedResponse, setSelectedResponse] = useState(responseSelectOptions[0])
-  const [responseMaxHeight, setResponseMaxHeight] = useState(0)
 
   const isSingleExample = languageExamples.length === 1
   const displayedExample: ExampleT = languageExamples[selectedExample.languageIndex]
@@ -118,19 +117,6 @@ export function RestCodeSamples({ operation, slug, heading }: Props) {
     Cookies.set('codeSampleLanguagePreferred', languageKey)
   }
 
-  const handleResponseResize = () => {
-    if (requestCodeExample.current) {
-      const requestCodeHeight = requestCodeExample.current.clientHeight || 0
-      const { innerHeight: height } = window
-      if (responseCodeExample) {
-        // 520 pixels roughly accounts for the space taken up by the
-        // nav bar, headers, language picker, method section, and response
-        // picker
-        setResponseMaxHeight(height - requestCodeHeight - 520)
-      }
-    }
-  }
-
   // Change the language based on cookies
   useEffect(() => {
     // If the user previously selected a language preference and the language
@@ -152,7 +138,6 @@ export function RestCodeSamples({ operation, slug, heading }: Props) {
     // (ClientSideHighlightJS) will have already handled highlighting
     if (reqElem && !firstRender.current) {
       highlightElement(reqElem)
-      handleResponseResize()
     }
   }, [selectedLanguage])
 
@@ -196,15 +181,6 @@ export function RestCodeSamples({ operation, slug, heading }: Props) {
     }
   }, [])
 
-  // Handle the resizing of the response section when the window is resized
-  useEffect(() => {
-    handleResponseResize()
-    window.addEventListener('resize', handleResponseResize)
-    return () => {
-      window.removeEventListener('resize', handleResponseResize)
-    }
-  })
-
   const [isCopied, setCopied] = useClipboard(displayedExample[selectedLanguage] as string, {
     successDuration: 1400,
   })
@@ -360,7 +336,6 @@ export function RestCodeSamples({ operation, slug, heading }: Props) {
                 'border-top rounded-1 my-0',
               )}
               data-highlight={'json'}
-              style={{ maxHeight: responseMaxHeight }}
               // eslint-disable-next-line jsx-a11y/no-noninteractive-tabindex
               tabIndex={0}
             >
diff --git a/src/rest/components/RestOperation.module.scss b/src/rest/components/RestOperation.module.scss
index 6e15d731e0..6aeee94898 100644
--- a/src/rest/components/RestOperation.module.scss
+++ b/src/rest/components/RestOperation.module.scss
@@ -5,3 +5,7 @@
 .codeBlock code:not(td *) {
   word-break: break-word;
 }
+
+.stickyCodeColumn {
+  top: 6.5em;
+}
diff --git a/src/rest/components/RestOperation.tsx b/src/rest/components/RestOperation.tsx
index 409fb55ee3..cae9e76497 100644
--- a/src/rest/components/RestOperation.tsx
+++ b/src/rest/components/RestOperation.tsx
@@ -102,8 +102,10 @@ export function RestOperation({ operation }: Props) {
           )}
         </div>
         <div
-          className="col-md-12 col-lg-6 position-sticky flex-self-start"
-          style={{ top: '6.5em' }}
+          className={cx(
+            'col-md-12 col-lg-6 position-sticky flex-self-start',
+            styles.stickyCodeColumn,
+          )}
         >
           {hasCodeSamples && (
             <RestCodeSamples
diff --git a/src/tools/components/Fields.module.scss b/src/tools/components/Fields.module.scss
index 438e5fcde7..c53f7c0288 100644
--- a/src/tools/components/Fields.module.scss
+++ b/src/tools/components/Fields.module.scss
@@ -3,3 +3,10 @@
     display: none;
   }
 }
+
+.linkItem {
+  &:hover {
+    text-decoration: none;
+    text-align: left;
+  }
+}
diff --git a/src/tools/components/Fields.tsx b/src/tools/components/Fields.tsx
index 4f18e19c5f..e6ae59f4e5 100644
--- a/src/tools/components/Fields.tsx
+++ b/src/tools/components/Fields.tsx
@@ -1,5 +1,6 @@
 import { ActionList } from '@primer/react'
 import { ReactNode } from 'react'
+import cx from 'classnames'
 
 import { PickerItem } from './Picker'
 
@@ -34,13 +35,10 @@ export const Fields = (fieldProps: {
             // variant span box in front of it. To date there isn't a possibility to have
             // an ActionMenu in Primer that allow non-selection variant items with selection
             // variant items
-            className={(item.extra?.arrow || item.extra?.info) && styles.extrasDisplay}
-            sx={{
-              ':hover': {
-                textDecoration: 'none',
-                textAlign: 'left',
-              },
-            }}
+            className={cx(
+              (item.extra?.arrow || item.extra?.info) && styles.extrasDisplay,
+              styles.linkItem,
+            )}
             role={item.extra?.arrow || item.extra?.info ? 'menuitem' : 'menuitemradio'}
           >
             {renderItem ? renderItem(item) : item.text}
diff --git a/src/tools/components/Picker.module.scss b/src/tools/components/Picker.module.scss
new file mode 100644
index 0000000000..71aca9ada9
--- /dev/null
+++ b/src/tools/components/Picker.module.scss
@@ -0,0 +1,12 @@
+.menuButton {
+  height: auto;
+  text-align: left;
+
+  span:first-child {
+    display: inline;
+  }
+}
+
+.pickerLabel {
+  white-space: pre-wrap;
+}
diff --git a/src/tools/components/Picker.tsx b/src/tools/components/Picker.tsx
index c92bfd750a..679e91b954 100644
--- a/src/tools/components/Picker.tsx
+++ b/src/tools/components/Picker.tsx
@@ -4,6 +4,7 @@ import { ActionMenu } from '@primer/react'
 import { AnchorAlignment } from '@primer/behaviors'
 
 import { Fields } from './Fields'
+import styles from './Picker.module.scss'
 
 interface Props {
   items: PickerItem[]
@@ -47,14 +48,9 @@ export const Picker = ({
       <ActionMenu.Button
         aria-label={ariaLabel}
         variant={buttonBorder ? 'default' : 'invisible'}
-        className="color-fg-default width-full p-1 pl-2 pr-2"
-        sx={{
-          height: 'auto',
-          textAlign: 'left',
-          'span:first-child': { display: 'inline' },
-        }}
+        className={`color-fg-default width-full p-1 pl-2 pr-2 ${styles.menuButton}`}
       >
-        {pickerLabel && <span style={{ whiteSpace: 'pre-wrap' }}>{`${pickerLabel}`}</span>}
+        {pickerLabel && <span className={styles.pickerLabel}>{`${pickerLabel}`}</span>}
         <span
           className={`f${descriptionFontSize} color-fg-muted text-normal`}
           data-testid={dataTestId}
diff --git a/src/webhooks/components/Webhook.tsx b/src/webhooks/components/Webhook.tsx
index e4fb4ac3a5..06e59ae342 100644
--- a/src/webhooks/components/Webhook.tsx
+++ b/src/webhooks/components/Webhook.tsx
@@ -157,9 +157,7 @@ export function Webhook({ webhook }: Props) {
           <Flash className="mb-5" variant="danger">
             <p>{t('action_type_switch_error')}</p>
             <p>
-              <code className="f6" style={{ background: 'none' }}>
-                {error.toString()}
-              </code>
+              <code className={`f6 ${styles.errorCode}`}>{error.toString()}</code>
             </p>
           </Flash>
         )}
diff --git a/src/webhooks/components/WebhookPayloadExample.module.scss b/src/webhooks/components/WebhookPayloadExample.module.scss
index cbadfb1781..7260ae4ec0 100644
--- a/src/webhooks/components/WebhookPayloadExample.module.scss
+++ b/src/webhooks/components/WebhookPayloadExample.module.scss
@@ -12,3 +12,7 @@
     padding: 8px 8px 16px;
   }
 }
+
+.errorCode {
+  background: none;
+}