website: add Carbon

website/docusaurus.config.js

@@ -128,9 +128,6 @@ module.exports = {
       apiKey: '6c13c369e8d9809cebb5c51330c914c3',
       indexName: 'frontendinterviewhandbook',
     },
-    metadata: [
-      {name: 'fo-verify', content: '2cc93525-ece8-402e-a4b8-d1d0853175e8'},
-    ],
   },
   presets: [
     [

website/src/components/CarbonAd/index.js

@@ -0,0 +1,48 @@
+import React, {useEffect, useRef} from 'react';
+
+// Credits: https://github.com/tannerlinsley/react-query/blob/master/docs/src/components/CarbonAds.js
+function buildScript(src, attrs = {}) {
+  if (typeof document !== 'undefined') {
+    const script = document.createElement('script');
+    script.async = true;
+    script.defer = true;
+    script.src = src;
+    Object.keys(attrs).forEach((attr) =>
+      script.setAttribute(attr, attrs[attr]),
+    );
+
+    return script;
+  }
+}
+
+export default React.memo(() => {
+  const ref = useRef();
+
+  useEffect(() => {
+    const script = buildScript(
+      '//cdn.carbonads.com/carbon.js?serve=CEAI4537&placement=wwwtechinterviewhandbookorg',
+      {
+        type: 'text/javascript',
+        id: '_carbonads_js',
+      },
+    );
+
+    ref.current.appendChild(script);
+  }, []);
+
+  useEffect(() => {
+    const interval = setInterval(() => {
+      [...ref.current.children].forEach((child) => {
+        if (child.id.startsWith('carbonads_')) {
+          ref.current.removeChild(child);
+        }
+      });
+    }, 100);
+
+    return () => {
+      clearInterval(interval);
+    };
+  });
+
+  return <div ref={ref} />;
+});

website/src/css/custom.css

@@ -74,6 +74,10 @@ div[class^='announcementBar_'] {
   font-weight: bold;
 }
 
+.menu {
+  font-size: 0.875rem;
+}
+
 .navbar__item.dropdown.dropdown--hoverable {
   flex-shrink: 0;
 }
@@ -117,3 +121,71 @@ html[data-theme='dark'] .navbar-icon-facebook:before {
   height: 28px;
   width: 28px;
 }
+
+#carbonads * {
+  margin: initial;
+  padding: initial;
+}
+#carbonads {
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
+    Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue', Helvetica, Arial,
+    sans-serif;
+  display: flex;
+  background-color: hsl(0, 0%, 98%);
+  box-shadow: 0 1px 4px 1px hsla(0, 0%, 0%, 0.1);
+  z-index: 100;
+  margin: 1rem auto;
+}
+html[data-theme='dark'] #carbonads {
+  background-color: hsl(0, 0%, 15%);
+  box-shadow: 0 0 1px hsl(0deg 0% 0% / 0.085), 0 0 2px hsl(0deg 0% 0% / 0.085),
+    0 0 4px hsl(0deg 0% 0% / 0.085), 0 0 8px hsl(0deg 0% 0% / 0.085);
+}
+#carbonads a {
+  color: inherit;
+  text-decoration: none;
+}
+#carbonads a:hover {
+  color: inherit;
+}
+#carbonads span {
+  position: relative;
+  display: block;
+  overflow: hidden;
+}
+#carbonads .carbon-wrap {
+  display: flex;
+}
+#carbonads .carbon-img {
+  display: block;
+  margin: 0;
+  line-height: 1;
+}
+#carbonads .carbon-img img {
+  display: block;
+}
+#carbonads .carbon-text {
+  font-size: 13px;
+  padding: 10px;
+  margin-bottom: 16px;
+  line-height: 1.5;
+  text-align: left;
+}
+#carbonads .carbon-poweredby {
+  display: block;
+  padding: 6px 8px;
+  background: #f1f1f2;
+  text-align: center;
+  text-transform: uppercase;
+  letter-spacing: 0.5px;
+  font-weight: 600;
+  font-size: 8px;
+  line-height: 1;
+  border-top-left-radius: 3px;
+  position: absolute;
+  bottom: 0;
+  right: 0;
+}
+html[data-theme='dark'] #carbonads .carbon-poweredby {
+  background: #1e2021;
+}

website/src/pages/index.js

@@ -7,6 +7,7 @@ import useBaseUrl from '@docusaurus/useBaseUrl';
 import styles from './styles.module.css';
 
 import successStories from '@site/src/data/successStories';
+import CarbonAd from '../components/CarbonAd';
 
 export default function Home() {
   const {siteConfig = {}} = useDocusaurusContext();
@@ -18,9 +19,10 @@ export default function Home() {
       <div>
         <HeroSection />
         <EducativeSection />
+        <CarbonAdSection />
         <FeaturesSection />
-        <MoonchaserSection />
         <TweetsSection />
+        <MoonchaserSection />
         <SuccessStoriesSection />
         <SponsorshipSection />
       </div>
@@ -73,6 +75,20 @@ function HeroSection() {
   );
 }
 
+function CarbonAdSection() {
+  return (
+    <div className={classnames('padding-vert--lg', styles.sectionAlt)}>
+      <div className="container">
+        <div className="row">
+          <div className="col col--8 col--offset-2">
+            <CarbonAd />
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}
+
 function MoonchaserSection() {
   /* Because the SSR and client output can differ and hydration doesn't patch attribute differences, 
 we'll render this on the browser only. */

website/src/theme/DocSidebar/index.js

@@ -14,6 +14,7 @@ import {translate} from '@docusaurus/Translate';
 import {DocSidebarItems} from '@theme/DocSidebarItem';
 import styles from './styles.module.css';
 import SidebarAd from '../../components/SidebarAd';
+import CarbonAd from '../../components/CarbonAd';
 
 function useShowAnnouncementBar() {
   const {isActive} = useAnnouncementBar();
@@ -73,8 +74,8 @@ function DocSidebarDesktop({path, sidebar, onCollapse, isHidden}) {
         <ul className={clsx(ThemeClassNames.docs.docSidebarMenu, 'menu__list')}>
           <DocSidebarItems items={sidebar} activePath={path} level={1} />
         </ul>
-        <div className="margin--md">
-          <SidebarAd position="left_sidebar" />
+        <div className="margin-vert--md">
+          <CarbonAd key={path} />
         </div>
       </nav>
       {hideableSidebar && <HideableSidebarButton onClick={onCollapse} />}