diff --git a/client/src/controllers/DropdownController.test.js b/client/src/controllers/DropdownController.test.js
index 69436b03ba..6323c46263 100644
--- a/client/src/controllers/DropdownController.test.js
+++ b/client/src/controllers/DropdownController.test.js
@@ -8,12 +8,14 @@ describe('DropdownController', () => {
 
   beforeEach(async () => {
     document.body.innerHTML = `
-<div data-controller="w-dropdown" data-w-dropdown-theme-value="dropdown" data-action="custom:show->w-dropdown#show custom:hide->w-dropdown#hide">
-<button id="toggle" type="button" data-w-dropdown-target="toggle" aria-label="Actions"></button>
-  <div data-w-dropdown-target="content">
-    <a href="/">Option</a>
+<section>
+  <div data-controller="w-dropdown" data-w-dropdown-theme-value="dropdown" data-action="custom:show->w-dropdown#show custom:hide->w-dropdown#hide">
+    <button id="toggle" type="button" data-w-dropdown-target="toggle" aria-label="Actions"></button>
+    <div data-w-dropdown-target="content">
+      <a href="/">Option</a>
+    </div>
   </div>
-</div>`;
+</section>`;
 
     application = Application.start();
     application.register('w-dropdown', DropdownController);
diff --git a/wagtail/admin/templates/wagtailadmin/pages/_unsaved_changes_warning.html b/wagtail/admin/templates/wagtailadmin/pages/_unsaved_changes_warning.html
index 8a4302aa4c..28e38df444 100644
--- a/wagtail/admin/templates/wagtailadmin/pages/_unsaved_changes_warning.html
+++ b/wagtail/admin/templates/wagtailadmin/pages/_unsaved_changes_warning.html
@@ -1,5 +1,5 @@
 {% load wagtailadmin_tags i18n %}
-<li
+<div
     class="footer__container footer__container--hidden"
     aria-live="polite"
     data-controller="w-messages"
@@ -30,4 +30,4 @@
             </div>
         </template>
     {% endblock %}
-</li>
+</div>
diff --git a/wagtail/admin/templates/wagtailadmin/pages/action_menu/menu.html b/wagtail/admin/templates/wagtailadmin/pages/action_menu/menu.html
index 7d07200a63..1b469cdd6f 100644
--- a/wagtail/admin/templates/wagtailadmin/pages/action_menu/menu.html
+++ b/wagtail/admin/templates/wagtailadmin/pages/action_menu/menu.html
@@ -1,14 +1,11 @@
 {% load wagtailadmin_tags %}
-{% if default_menu_item %}
+
+{% if show_menu %}
+    {% dropdown_button button=default_menu_item toggle_icon="arrow-up" %}
+        {% for item in rendered_menu_items %}
+            {{ item }}
+        {% endfor %}
+    {% enddropdown_button %}
+{% elif default_menu_item %}
     {{ default_menu_item }}
 {% endif %}
-{% if show_menu %}
-    <div class="dropdown-toggle">{% icon name="arrow-up" %}</div>
-    <ul>
-        {% for item in rendered_menu_items %}
-            <li>
-                {{ item }}
-            </li>
-        {% endfor %}
-    </ul>
-{% endif %}
diff --git a/wagtail/admin/templates/wagtailadmin/pages/create.html b/wagtail/admin/templates/wagtailadmin/pages/create.html
index 144425d96b..f6265eba87 100644
--- a/wagtail/admin/templates/wagtailadmin/pages/create.html
+++ b/wagtail/admin/templates/wagtailadmin/pages/create.html
@@ -27,9 +27,7 @@
                     <nav aria-label="{% trans 'Actions' %}">
                         <ul>
                             <li class="actions actions--primary">
-                                <div class="dropdown dropup dropdown-button match-width {% if is_revision %}warning{% endif %}">
-                                    {{ action_menu.render_html }}
-                                </div>
+                                {{ action_menu.render_html }}
                             </li>
 
                             {% block extra_footer_actions %}
diff --git a/wagtail/admin/templates/wagtailadmin/pages/edit.html b/wagtail/admin/templates/wagtailadmin/pages/edit.html
index 37b3e88b48..5c2e40e011 100644
--- a/wagtail/admin/templates/wagtailadmin/pages/edit.html
+++ b/wagtail/admin/templates/wagtailadmin/pages/edit.html
@@ -28,9 +28,7 @@
                         <nav aria-label="{% trans 'Actions' %}">
                             <ul>
                                 <li class="actions actions--primary">
-                                    <div class="dropdown dropup dropdown-button match-width {% if is_revision %}warning{% endif %}">
-                                        {{ action_menu.render_html }}
-                                    </div>
+                                    {{ action_menu.render_html }}
                                 </li>
 
                                 {% block extra_footer_actions %}
diff --git a/wagtail/admin/views/pages/revisions.py b/wagtail/admin/views/pages/revisions.py
index 78efc8f6bf..2f3912d3f4 100644
--- a/wagtail/admin/views/pages/revisions.py
+++ b/wagtail/admin/views/pages/revisions.py
@@ -77,6 +77,7 @@ def revisions_revert(request, page_id, revision_id):
     action_menu = PageActionMenu(
         request,
         view="revisions_revert",
+        is_revision=True,
         page=page,
         lock=lock,
         locked_for_user=lock is not None and lock.for_user(request.user),