diff --git a/app/assets/javascripts/admin/menu.js b/app/assets/javascripts/admin/menu.js
new file mode 100644
index 000000000..f6d91978a
--- /dev/null
+++ b/app/assets/javascripts/admin/menu.js
@@ -0,0 +1,16 @@
+(function() {
+  "use strict";
+  App.AdminMenu = {
+    initialize: function() {
+      var toggle_buttons = $(".admin-sidebar [aria-expanded]");
+
+      toggle_buttons.removeAttr("disabled");
+      toggle_buttons.filter("[aria-expanded='false']").find("+ *").hide();
+
+      toggle_buttons.on("click", function() {
+        $(this).attr("aria-expanded", !JSON.parse($(this).attr("aria-expanded")));
+        $(this).next().slideToggle();
+      });
+    }
+  };
+}).call(this);
diff --git a/app/assets/javascripts/application.js b/app/assets/javascripts/application.js
index 86a0f8243..9e6031dd4 100644
--- a/app/assets/javascripts/application.js
+++ b/app/assets/javascripts/application.js
@@ -174,6 +174,7 @@ var initialize_modules = function() {
   App.AdminMachineLearningScripts.initialize();
   App.AdminTenantsForm.initialize();
   App.AdminVotationTypesFields.initialize();
+  App.AdminMenu.initialize();
   App.BudgetEditAssociations.initialize();
   App.BudgetHideMoney.initialize();
   App.Datepicker.initialize();
diff --git a/app/assets/stylesheets/admin/menu.scss b/app/assets/stylesheets/admin/menu.scss
index 3a6cd7514..1993ff53a 100644
--- a/app/assets/stylesheets/admin/menu.scss
+++ b/app/assets/stylesheets/admin/menu.scss
@@ -10,7 +10,7 @@
     padding: 0;
   }
 
-  > ul > li a {
+  > ul > li > :first-child {
     display: flex;
     font-weight: bold;
 
@@ -124,16 +124,9 @@
       border-left: 2px solid $sidebar-active;
       font-weight: bold;
     }
-
-    &[aria-expanded="true"] {
-
-      > a::after {
-        transform: rotate(180deg);
-      }
-    }
   }
 
-  li a {
+  li > :first-child {
     color: inherit;
     display: block;
     padding: calc(#{$line-height} / 2);
@@ -146,19 +139,27 @@
     }
   }
 
-  .is-accordion-submenu-parent {
+  [aria-expanded] {
+    @include has-fa-icon(chevron-down, solid, after);
+    line-height: inherit;
+    text-align: inherit;
+    width: 100%;
 
-    > a {
-      @include has-fa-icon(chevron-down, solid, after);
+    &::after {
+      margin-#{$global-left}: auto;
+      transition: 0.25s;
+    }
 
-      &::after {
-        margin-#{$global-left}: auto;
-        transition: 0.25s;
-      }
+    &:not([disabled]) {
+      cursor: pointer;
     }
   }
 
-  .submenu {
+  [aria-expanded="true"]::after {
+    transform: rotate(180deg);
+  }
+
+  ul ul {
     border-bottom: 0;
     margin-left: $line-height;
 
diff --git a/app/components/admin/menu_component.html.erb b/app/components/admin/menu_component.html.erb
index 5b4a80597..0edc468b4 100644
--- a/app/components/admin/menu_component.html.erb
+++ b/app/components/admin/menu_component.html.erb
@@ -1 +1 @@
-<%= link_list(*links, id: "admin_menu", data: { "accordion-menu": true, "multi-open": true }) %>
+<%= link_list(*links, id: "admin_menu") %>
diff --git a/app/components/admin/menu_component.rb b/app/components/admin/menu_component.rb
index bc4791c3a..480be1b89 100644
--- a/app/components/admin/menu_component.rb
+++ b/app/components/admin/menu_component.rb
@@ -60,7 +60,9 @@ class Admin::MenuComponent < ApplicationComponent
 
     def customization?
       controllers_names = ["pages", "banners", "information_texts", "documents", "images", "content_blocks"]
-      controllers_names.include?(controller_name) || homepage? || pages?
+
+      (controllers_names.include?(controller_name) || homepage? || pages?) &&
+        controller.class.module_parent != Admin::Poll::Questions::Answers
     end
 
     def homepage?
@@ -151,13 +153,13 @@ class Admin::MenuComponent < ApplicationComponent
     end
 
     def booths_links
-      section(t("admin.menu.title_booths"), class: "booths-link") do
+      section(t("admin.menu.title_booths"), active: booths?, class: "booths-link") do
         link_list(
           officers_link,
           booths_link,
           booth_assignments_link,
           shifts_link,
-          id: "booths_menu", class: ("is-active" if booths?)
+          id: "booths_menu"
         )
       end
     end
@@ -205,13 +207,13 @@ class Admin::MenuComponent < ApplicationComponent
     end
 
     def messages_links
-      section(t("admin.menu.messaging_users"), class: "messages-link") do
+      section(t("admin.menu.messaging_users"), active: messages_menu_active?, class: "messages-link") do
         link_list(
           newsletters_link,
           admin_notifications_link,
           system_emails_link,
           emails_download_link,
-          id: "messaging_users_menu", class: ("is-active" if messages_menu_active?)
+          id: "messaging_users_menu"
         )
       end
     end
@@ -249,7 +251,8 @@ class Admin::MenuComponent < ApplicationComponent
     end
 
     def site_customization_links
-      section(t("admin.menu.title_site_customization"), class: "site-customization-link") do
+      section(t("admin.menu.title_site_customization"),
+              active: customization?, class: "site-customization-link") do
         link_list(
           homepage_link,
           pages_link,
@@ -257,9 +260,7 @@ class Admin::MenuComponent < ApplicationComponent
           information_texts_link,
           documents_link,
           images_link,
-          content_blocks_link,
-          class: ("is-active" if customization? &&
-                                 controller.class.module_parent != Admin::Poll::Questions::Answers)
+          content_blocks_link
         )
       end
     end
@@ -305,7 +306,8 @@ class Admin::MenuComponent < ApplicationComponent
     end
 
     def moderated_content_links
-      section(t("admin.menu.title_moderated_content"), class: "moderated-content-link") do
+      section(t("admin.menu.title_moderated_content"),
+              active: moderated_content?, class: "moderated-content-link") do
         link_list(
           (hidden_proposals_link if feature?(:proposals)),
           (hidden_debates_link if feature?(:debates)),
@@ -313,8 +315,7 @@ class Admin::MenuComponent < ApplicationComponent
           hidden_comments_link,
           hidden_proposal_notifications_link,
           hidden_users_link,
-          activity_link,
-          class: ("is-active" if moderated_content?)
+          activity_link
         )
       end
     end
@@ -376,7 +377,7 @@ class Admin::MenuComponent < ApplicationComponent
     end
 
     def profiles_links
-      section(t("admin.menu.title_profiles"), class: "profiles-link") do
+      section(t("admin.menu.title_profiles"), active: profiles?, class: "profiles-link") do
         link_list(
           administrators_link,
           organizations_link,
@@ -385,8 +386,7 @@ class Admin::MenuComponent < ApplicationComponent
           valuators_link,
           managers_link,
           (sdg_managers_link if feature?(:sdg)),
-          users_link,
-          class: ("is-active" if profiles?)
+          users_link
         )
       end
     end
@@ -457,14 +457,13 @@ class Admin::MenuComponent < ApplicationComponent
     end
 
     def settings_links
-      section(t("admin.menu.title_settings"), class: "settings-link") do
+      section(t("admin.menu.title_settings"), active: settings?, class: "settings-link") do
         link_list(
           settings_link,
           tenants_link,
           tags_link,
           geozones_link,
-          local_census_records_link,
-          class: ("is-active" if settings?)
+          local_census_records_link
         )
       end
     end
@@ -528,11 +527,10 @@ class Admin::MenuComponent < ApplicationComponent
     end
 
     def dashboard_links
-      section(t("admin.menu.dashboard"), class: "dashboard-link") do
+      section(t("admin.menu.dashboard"), active: dashboard?, class: "dashboard-link") do
         link_list(
           dashboard_actions_link,
-          administrator_tasks_link,
-          class: ("is-active" if dashboard?)
+          administrator_tasks_link
         )
       end
     end
@@ -574,7 +572,7 @@ class Admin::MenuComponent < ApplicationComponent
       section_opener(title, **) + content.call
     end
 
-    def section_opener(title, **options)
-      link_to(title, "#", options)
+    def section_opener(title, active:, **options)
+      button_tag(title, { type: "button", disabled: "disabled", "aria-expanded": active }.merge(options))
     end
 end
diff --git a/app/components/management/menu_component.html.erb b/app/components/management/menu_component.html.erb
index 5c125bf08..0edc468b4 100644
--- a/app/components/management/menu_component.html.erb
+++ b/app/components/management/menu_component.html.erb
@@ -1 +1 @@
-<%= link_list(*links, id: "admin_menu", data: { "accordion-menu": true }) %>
+<%= link_list(*links, id: "admin_menu") %>
diff --git a/app/components/management/menu_component.rb b/app/components/management/menu_component.rb
index 1fdb87897..be11c0fd4 100644
--- a/app/components/management/menu_component.rb
+++ b/app/components/management/menu_component.rb
@@ -13,7 +13,7 @@ class Management::MenuComponent < ApplicationComponent
   private
 
     def user_links
-      section(t("management.menu.users"), class: "users-link") do
+      section(t("management.menu.users"), active: true, class: "users-link") do
         link_list(
           select_user_link,
           (reset_password_email_link if managed_user.email),
@@ -21,8 +21,7 @@ class Management::MenuComponent < ApplicationComponent
           create_proposal_link,
           support_proposals_link,
           (create_budget_investment_link if Setting["process.budgets"]),
-          (support_budget_investments_link  if Setting["process.budgets"]),
-          class: "is-active"
+          (support_budget_investments_link  if Setting["process.budgets"])
         )
       end
     end
@@ -157,7 +156,7 @@ class Management::MenuComponent < ApplicationComponent
       section_opener(title, **) + content.call
     end
 
-    def section_opener(title, **options)
-      link_to(title, "#", options)
+    def section_opener(title, active:, **options)
+      button_tag(title, { type: "button", disabled: "disabled", "aria-expanded": active }.merge(options))
     end
 end
diff --git a/spec/components/admin/menu_component_spec.rb b/spec/components/admin/menu_component_spec.rb
new file mode 100644
index 000000000..0a7ccf82f
--- /dev/null
+++ b/spec/components/admin/menu_component_spec.rb
@@ -0,0 +1,22 @@
+require "rails_helper"
+
+describe Admin::MenuComponent, controller: Admin::NewslettersController do
+  it "disables all buttons when JavaScript isn't available" do
+    render_inline Admin::MenuComponent.new
+
+    expect(page).to have_button disabled: true
+    expect(page).not_to have_button disabled: false
+  end
+
+  it "expands the current section" do
+    render_inline Admin::MenuComponent.new
+
+    expect(page).to have_css "button[aria-expanded='true']", exact_text: "Messages to users"
+  end
+
+  it "does not expand other sections" do
+    render_inline Admin::MenuComponent.new
+
+    expect(page).to have_css "button[aria-expanded='false']", exact_text: "Settings"
+  end
+end
diff --git a/spec/system/admin/banners_spec.rb b/spec/system/admin/banners_spec.rb
index 0ac2a009e..c604f6d6e 100644
--- a/spec/system/admin/banners_spec.rb
+++ b/spec/system/admin/banners_spec.rb
@@ -64,7 +64,7 @@ describe "Admin banners magement", :admin do
     visit admin_root_path
 
     within("#side_menu") do
-      click_link "Site content"
+      click_button "Site content"
       click_link "Manage banners"
     end
 
@@ -133,7 +133,7 @@ describe "Admin banners magement", :admin do
     visit admin_root_path
 
     within("#side_menu") do
-      click_link "Site content"
+      click_button "Site content"
       click_link "Manage banners"
     end
 
diff --git a/spec/system/admin/geozones_spec.rb b/spec/system/admin/geozones_spec.rb
index 95c862baf..384cccc73 100644
--- a/spec/system/admin/geozones_spec.rb
+++ b/spec/system/admin/geozones_spec.rb
@@ -15,7 +15,7 @@ describe "Admin geozones", :admin do
     visit admin_root_path
 
     within("#side_menu") do
-      click_link "Settings"
+      click_button "Settings"
       click_link "Manage geozones"
     end
 
diff --git a/spec/system/admin/poll/booths_spec.rb b/spec/system/admin/poll/booths_spec.rb
index 61b440bc0..392f01b62 100644
--- a/spec/system/admin/poll/booths_spec.rb
+++ b/spec/system/admin/poll/booths_spec.rb
@@ -5,7 +5,7 @@ describe "Admin booths", :admin do
     visit admin_root_path
 
     within("#side_menu") do
-      click_link "Voting booths"
+      click_button "Voting booths"
       click_link "Booths location"
     end
 
@@ -18,7 +18,7 @@ describe "Admin booths", :admin do
     visit admin_root_path
 
     within("#side_menu") do
-      click_link "Voting booths"
+      click_button "Voting booths"
       click_link "Booths location"
     end
 
@@ -38,7 +38,7 @@ describe "Admin booths", :admin do
     visit admin_root_path
 
     within("#side_menu") do
-      click_link "Voting booths"
+      click_button "Voting booths"
       click_link "Manage shifts"
     end
 
diff --git a/spec/system/admin/site_customization/content_blocks_spec.rb b/spec/system/admin/site_customization/content_blocks_spec.rb
index 012fc28ee..6f77b1c31 100644
--- a/spec/system/admin/site_customization/content_blocks_spec.rb
+++ b/spec/system/admin/site_customization/content_blocks_spec.rb
@@ -23,7 +23,7 @@ describe "Admin custom content blocks", :admin do
       visit admin_root_path
 
       within("#side_menu") do
-        click_link "Site content"
+        click_button "Site content"
         click_link "Custom content blocks"
       end
 
@@ -48,7 +48,7 @@ describe "Admin custom content blocks", :admin do
       visit admin_root_path
 
       within("#side_menu") do
-        click_link "Site content"
+        click_button "Site content"
         click_link "Custom content blocks"
       end
 
@@ -75,7 +75,7 @@ describe "Admin custom content blocks", :admin do
       visit admin_root_path
 
       within("#side_menu") do
-        click_link "Site content"
+        click_button "Site content"
         click_link "Custom content blocks"
       end
 
diff --git a/spec/system/admin/site_customization/documents_spec.rb b/spec/system/admin/site_customization/documents_spec.rb
index 76fff934b..3f4ec063c 100644
--- a/spec/system/admin/site_customization/documents_spec.rb
+++ b/spec/system/admin/site_customization/documents_spec.rb
@@ -5,7 +5,7 @@ describe "Documents", :admin do
     visit admin_root_path
 
     within("#side_menu") do
-      click_link "Site content"
+      click_button "Site content"
       click_link "Custom documents"
     end
 
diff --git a/spec/system/admin/site_customization/images_spec.rb b/spec/system/admin/site_customization/images_spec.rb
index 11cf9fc0e..801e0576a 100644
--- a/spec/system/admin/site_customization/images_spec.rb
+++ b/spec/system/admin/site_customization/images_spec.rb
@@ -5,7 +5,7 @@ describe "Admin custom images", :admin do
     visit admin_root_path
 
     within("#side_menu") do
-      click_link "Site content"
+      click_button "Site content"
       click_link "Custom images"
     end
 
diff --git a/spec/system/admin/site_customization/pages_spec.rb b/spec/system/admin/site_customization/pages_spec.rb
index 6192d5632..19a084ce6 100644
--- a/spec/system/admin/site_customization/pages_spec.rb
+++ b/spec/system/admin/site_customization/pages_spec.rb
@@ -33,7 +33,7 @@ describe "Admin custom pages", :admin do
       visit admin_root_path
 
       within("#side_menu") do
-        click_link "Site content"
+        click_button "Site content"
         click_link "Custom pages"
       end
 
@@ -63,7 +63,7 @@ describe "Admin custom pages", :admin do
       visit admin_root_path
 
       within("#side_menu") do
-        click_link "Site content"
+        click_button "Site content"
         click_link "Custom pages"
       end
 
diff --git a/spec/system/admin/tenants_spec.rb b/spec/system/admin/tenants_spec.rb
index acabe6464..0616eaa58 100644
--- a/spec/system/admin/tenants_spec.rb
+++ b/spec/system/admin/tenants_spec.rb
@@ -8,7 +8,7 @@ describe "Tenants", :admin, :seed_tenants do
       visit admin_root_path
 
       within("#side_menu") do
-        click_link "Settings"
+        click_button "Settings"
         click_link "Multitenancy"
       end
 
diff --git a/spec/system/admin_spec.rb b/spec/system/admin_spec.rb
index a0f31c04d..d09d9bdeb 100644
--- a/spec/system/admin_spec.rb
+++ b/spec/system/admin_spec.rb
@@ -80,7 +80,7 @@ describe "Admin" do
     within("#admin_menu") do
       expect(page).to have_link "Participatory budgets"
 
-      click_link "Site content"
+      click_button "Site content"
 
       expect(page).to have_link "Participatory budgets"
     end