diff --git a/packages/website/app/modules/navigation/main-navigation-menu.tsx b/packages/website/app/modules/navigation/main-navigation-menu.tsx
new file mode 100644
index 0000000..be2a33d
--- /dev/null
+++ b/packages/website/app/modules/navigation/main-navigation-menu.tsx
@@ -0,0 +1,59 @@
+import { Menu, Transition } from "@headlessui/react"
+import { MenuAlt4Icon } from "@heroicons/react/outline"
+import clsx from "clsx"
+import { useGuideLinksContext } from "~/modules/navigation/guide-links-context"
+import { Popper } from "~/modules/ui/popper"
+import { AppLink } from "./app-link"
+import { mainLinks } from "./main-links"
+
+export function MainNavigationMenu() {
+  const guideLinks = useGuideLinksContext()
+  return (
+    <Menu>
+      <Popper
+        renderReference={(reference) => (
+          <Menu.Button {...reference}>
+            <MenuAlt4Icon className="w-6" />
+            <span className="sr-only">Menu</span>
+          </Menu.Button>
+        )}
+        renderPopover={() => (
+          <Transition
+            enter="transition"
+            enterFrom="translate-y-4 opacity-0"
+            enterTo="translate-y-0 opacity-100"
+            leave="transition"
+            leaveFrom="translate-y-0 opacity-100"
+            leaveTo="translate-y-4 opacity-0"
+          >
+            <Menu.Items className="w-48 max-h-[calc(100vh-5rem)] bg-slate-800 shadow rounded-lg overflow-hidden overflow-y-auto focus:outline-none">
+              {mainLinks.map((link) => (
+                <Menu.Item key={link.to}>
+                  {({ active }) => (
+                    <AppLink {...link} className={menuItemClass({ active })} />
+                  )}
+                </Menu.Item>
+              ))}
+              <Menu.Item disabled>
+                <hr className="border-0 h-[2px] bg-black/50" />
+              </Menu.Item>
+              {guideLinks.map(({ link }) => (
+                <Menu.Item key={link.to}>
+                  {({ active }) => (
+                    <AppLink {...link} className={menuItemClass({ active })} />
+                  )}
+                </Menu.Item>
+              ))}
+            </Menu.Items>
+          </Transition>
+        )}
+      />
+    </Menu>
+  )
+}
+
+const menuItemClass = ({ active = false }) =>
+  clsx(
+    clsx`px-3 py-2 transition text-left font-medium block opacity-50`,
+    active && clsx`opacity-100 bg-black/75 text-emerald-400`,
+  )
diff --git a/packages/website/app/modules/navigation/main-navigation.tsx b/packages/website/app/modules/navigation/main-navigation.tsx
index d0de44d..6e5b1df 100644
--- a/packages/website/app/modules/navigation/main-navigation.tsx
+++ b/packages/website/app/modules/navigation/main-navigation.tsx
@@ -1,12 +1,10 @@
 import { AppLogo } from "~/modules/app/app-logo"
-import { useGuideLinksContext } from "~/modules/navigation/guide-links-context"
 import { linkClass } from "../ui/components"
-import { PopoverMenu } from "../ui/popover-menu"
 import { AppLink } from "./app-link"
 import { mainLinks } from "./main-links"
+import { MainNavigationMenu } from "./main-navigation-menu"
 
 export function MainNavigation() {
-  const guideLinks = useGuideLinksContext()
   return (
     <nav className="flex justify-between items-center h-16">
       <a href="/">
@@ -18,25 +16,7 @@ export function MainNavigation() {
         ))}
       </div>
       <div className="md:hidden">
-        <PopoverMenu>
-          {mainLinks.map((link) => (
-            <AppLink
-              {...link}
-              role="menuitem"
-              key={link.to}
-              className={PopoverMenu.itemClass}
-            />
-          ))}
-          <hr className="border-0 h-[2px] bg-black/50" />
-          {guideLinks.map(({ link }) => (
-            <AppLink
-              {...link}
-              role="menuitem"
-              key={link.to}
-              className={PopoverMenu.itemClass}
-            />
-          ))}
-        </PopoverMenu>
+        <MainNavigationMenu />
       </div>
     </nav>
   )
diff --git a/packages/website/app/modules/ui/popover-menu.tsx b/packages/website/app/modules/ui/popover-menu.tsx
deleted file mode 100644
index f099503..0000000
--- a/packages/website/app/modules/ui/popover-menu.tsx
+++ /dev/null
@@ -1,32 +0,0 @@
-import { MenuAlt4Icon } from "@heroicons/react/outline"
-import clsx from "clsx"
-import React from "react"
-import { linkClass } from "./components"
-
-export function PopoverMenu({ children }: { children: React.ReactNode }) {
-  return (
-    <div className="relative" x-data="{ open: false }">
-      <button title="Menu" className={linkClass} x-on:click="open = !open">
-        <MenuAlt4Icon className="w-6" />
-      </button>
-      <div
-        role="menu"
-        className={`
-          w-48 max-h-[calc(100vh-4rem)]
-          absolute right-0 top-[calc(100%+8px)]
-          bg-slate-800 shadow rounded-lg
-          overflow-hidden overflow-y-auto 
-          transition-all
-        `}
-        x-bind:class="open ? 'visible opacity-100' : 'invisible opacity-0 translate-y-3'"
-      >
-        {children}
-      </div>
-    </div>
-  )
-}
-
-PopoverMenu.itemClass = clsx`
-  px-3 py-2 transition text-left font-medium block
-  opacity-50 hover:opacity-100 hover:bg-black/30
-`
diff --git a/packages/website/app/modules/ui/popper.tsx b/packages/website/app/modules/ui/popper.tsx
new file mode 100644
index 0000000..d555f80
--- /dev/null
+++ b/packages/website/app/modules/ui/popper.tsx
@@ -0,0 +1,41 @@
+import { useRect } from "@reach/rect"
+import * as React from "react"
+import { Portal } from "~/modules/dom/portal"
+
+export function Popper({
+  renderReference,
+  renderPopover,
+}: {
+  renderReference: (referenceProps: {
+    ref: (element: HTMLElement | null | undefined) => void
+  }) => React.ReactNode
+  renderPopover: () => React.ReactNode
+}) {
+  const [reference, referenceRef] = React.useState<HTMLElement | null>()
+  const referenceRect = useRect(useValueAsRefObject(reference))
+
+  return (
+    <>
+      {renderReference({ ref: referenceRef })}
+      <Portal>
+        {referenceRect && (
+          <div
+            className="fixed -translate-x-full"
+            style={{
+              left: referenceRect.right,
+              top: referenceRect.bottom + 16,
+            }}
+          >
+            {renderPopover()}
+          </div>
+        )}
+      </Portal>
+    </>
+  )
+}
+
+function useValueAsRefObject<Value>(value: Value): { readonly current: Value } {
+  const ref = React.useRef<Value>(value)
+  ref.current = value
+  return ref
+}
diff --git a/packages/website/app/root.tsx b/packages/website/app/root.tsx
index c108600..069eb29 100644
--- a/packages/website/app/root.tsx
+++ b/packages/website/app/root.tsx
@@ -73,11 +73,9 @@ export default function App() {
         <meta name="viewport" content="width=device-width,initial-scale=1" />
         <Meta />
         <Links />
-        <script defer src="https://unpkg.com/alpinejs@3.7.1/dist/cdn.min.js" />
         {process.env.NODE_ENV === "production" && (
           <script
             async
-            defer
             data-website-id="49c69ade-5593-4853-9686-c9ca9d519a18"
             src="https://maple-umami.fly.dev/umami.js"
           />
diff --git a/packages/website/app/routes/guides.tsx b/packages/website/app/routes/guides.tsx
index b9013ec..3f1556c 100644
--- a/packages/website/app/routes/guides.tsx
+++ b/packages/website/app/routes/guides.tsx
@@ -12,7 +12,7 @@ import {
 export default function GuidePage() {
   const guideLinks = useGuideLinksContext()
   return (
-    <>
+    <div className="isolate">
       <header className="bg-slate-700/30 shadow sticky top-0 backdrop-blur-sm transition z-10 flex">
         <div className={maxWidthContainer}>
           <MainNavigation />
@@ -33,6 +33,6 @@ export default function GuidePage() {
           <Outlet />
         </section>
       </main>
-    </>
+    </div>
   )
 }
diff --git a/packages/website/package.json b/packages/website/package.json
index 5837bf5..900028d 100644
--- a/packages/website/package.json
+++ b/packages/website/package.json
@@ -12,7 +12,9 @@
     "typecheck": "tsc --noEmit && tsc --project cypress/tsconfig.json --noEmit"
   },
   "dependencies": {
+    "@headlessui/react": "^1.4.2",
     "@heroicons/react": "^1.0.5",
+    "@reach/rect": "^0.16.0",
     "@remix-run/react": "^1.1.1",
     "@remix-run/serve": "^1.1.1",
     "@tailwindcss/typography": "^0.5.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 5efff37..a68c691 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -91,7 +91,9 @@ importers:
 
   packages/website:
     specifiers:
+      '@headlessui/react': ^1.4.2
       '@heroicons/react': ^1.0.5
+      '@reach/rect': ^0.16.0
       '@remix-run/dev': ^1.1.1
       '@remix-run/node': ^1.1.1
       '@remix-run/react': ^1.1.1
@@ -122,7 +124,9 @@ importers:
       typescript: ^4.5.4
       wait-on: ^6.0.0
     dependencies:
+      '@headlessui/react': 1.4.2_react-dom@17.0.2+react@17.0.2
       '@heroicons/react': 1.0.5_react@17.0.2
+      '@reach/rect': 0.16.0_react-dom@17.0.2+react@17.0.2
       '@remix-run/react': 1.1.1_react-dom@17.0.2+react@17.0.2
       '@remix-run/serve': 1.1.1_react-dom@17.0.2+react@17.0.2
       '@tailwindcss/typography': 0.5.0_tailwindcss@3.0.13
@@ -588,6 +592,17 @@ packages:
       '@hapi/hoek': 9.2.1
     dev: true
 
+  /@headlessui/react/1.4.2_react-dom@17.0.2+react@17.0.2:
+    resolution: {integrity: sha512-N8tv7kLhg9qGKBkVdtg572BvKvWhmiudmeEpOCyNwzOsZHCXBtl8AazGikIfUS+vBoub20Fse3BjawXDVPPdug==}
+    engines: {node: '>=10'}
+    peerDependencies:
+      react: ^16 || ^17 || ^18
+      react-dom: ^16 || ^17 || ^18
+    dependencies:
+      react: 17.0.2
+      react-dom: 17.0.2_react@17.0.2
+    dev: false
+
   /@heroicons/react/1.0.5_react@17.0.2:
     resolution: {integrity: sha512-UDMyLM2KavIu2vlWfMspapw9yii7aoLwzI2Hudx4fyoPwfKfxU8r3cL8dEBXOjcLG0/oOONZzbT14M1HoNtEcg==}
     peerDependencies:
@@ -826,6 +841,37 @@ packages:
       '@octokit/openapi-types': 11.2.0
     dev: true
 
+  /@reach/observe-rect/1.2.0:
+    resolution: {integrity: sha512-Ba7HmkFgfQxZqqaeIWWkNK0rEhpxVQHIoVyW1YDSkGsGIXzcaW4deC8B0pZrNSSyLTdIk7y+5olKt5+g0GmFIQ==}
+    dev: false
+
+  /@reach/rect/0.16.0_react-dom@17.0.2+react@17.0.2:
+    resolution: {integrity: sha512-/qO9jQDzpOCdrSxVPR6l674mRHNTqfEjkaxZHluwJ/2qGUtYsA0GSZiF/+wX/yOWeBif1ycxJDa6HusAMJZC5Q==}
+    peerDependencies:
+      react: ^16.8.0 || 17.x
+      react-dom: ^16.8.0 || 17.x
+    dependencies:
+      '@reach/observe-rect': 1.2.0
+      '@reach/utils': 0.16.0_react-dom@17.0.2+react@17.0.2
+      prop-types: 15.8.1
+      react: 17.0.2
+      react-dom: 17.0.2_react@17.0.2
+      tiny-warning: 1.0.3
+      tslib: 2.3.1
+    dev: false
+
+  /@reach/utils/0.16.0_react-dom@17.0.2+react@17.0.2:
+    resolution: {integrity: sha512-PCggBet3qaQmwFNcmQ/GqHSefadAFyNCUekq9RrWoaU9hh/S4iaFgf2MBMdM47eQj5i/Bk0Mm07cP/XPFlkN+Q==}
+    peerDependencies:
+      react: ^16.8.0 || 17.x
+      react-dom: ^16.8.0 || 17.x
+    dependencies:
+      react: 17.0.2
+      react-dom: 17.0.2_react@17.0.2
+      tiny-warning: 1.0.3
+      tslib: 2.3.1
+    dev: false
+
   /@remix-run/dev/1.1.1:
     resolution: {integrity: sha512-dkzMVgMzaQUppf2za3kD+izsEK1hLsLQSVtDD3wN7pBMEbWXaEkWb2X2lj3c9yRDArPB7y5+09rm4SUnE4mL6A==}
     hasBin: true
@@ -8016,6 +8062,10 @@ packages:
   /through/2.3.8:
     resolution: {integrity: sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU=}
 
+  /tiny-warning/1.0.3:
+    resolution: {integrity: sha512-lBN9zLN/oAf68o3zNXYrdCt1kP8WsiGW8Oo2ka41b2IM5JL/S1CTyX1rW0mb/zSuJun0ZUrDxx4sqvYS2FWzPA==}
+    dev: false
+
   /tinypool/0.1.1:
     resolution: {integrity: sha512-sW2fQZ2BRb/GX5v55NkHiTrbMLx0eX0xNpP+VGhOe2f7Oo04+LeClDyM19zCE/WCy7jJ8kzIJ0Ojrxj3UhN9Sg==}
     engines: {node: '>=14.0.0'}