diff --git a/app/assets/stylesheets/application/layout.sass b/app/assets/stylesheets/application/layout.sass
index 2431819fb41ecbe4a91ed633890b7895bb249c19..484376aaa1e22db034522910bb22f5d7bc7da07c 100644
--- a/app/assets/stylesheets/application/layout.sass
+++ b/app/assets/stylesheets/application/layout.sass
@@ -1,6 +1,8 @@
-.navbar-brand
-    img
-        max-width: 100px
+.navbar
+    margin-bottom: 100px
+    .navbar-brand
+        img
+            max-width: 100px
 
 footer
     margin-top: 100px
diff --git a/app/services/simple_navigation/bootstrap_renderer.rb b/app/services/simple_navigation/bootstrap_renderer.rb
new file mode 100644
index 0000000000000000000000000000000000000000..21646e9f9a18cc926ae4e1e890d68a7aea9b3ada
--- /dev/null
+++ b/app/services/simple_navigation/bootstrap_renderer.rb
@@ -0,0 +1,44 @@
+class SimpleNavigation::BootstrapRenderer < SimpleNavigation::Renderer::Base
+  def render(item_container)
+    content = '<ul class="nav">'
+    item_container.items.each do |item|
+      content << make(item)
+    end
+    content << '</ul>'
+    content.html_safe
+  end
+
+  protected
+
+  def make(item)
+    li = "<li class=\"sidebar-item #{ item.html_options[:class] } #{ ' disabled' unless item.url }\">"
+    li += make_a(item)
+    li += make_subnavigation(item) if consider_sub_navigation?(item)
+    li += '</li>'
+    li
+  end
+
+  def make_item(item)
+    li = "<li class=\"nav-item #{ item.html_options[:class] } #{ ' disabled' unless item.url }\">"
+    li += make_a(item)
+    li += make_subnavigation(item) if consider_sub_navigation?(item)
+    li += '</li>'
+    li
+  end
+
+  def make_a(item)
+    icon = item.send(:options)[:icon]
+    a = "<a href=\"#{ item.url }\" class=\"nav-link#{ item.selected? ? '' : ' collapsed' }\""
+    a += " data-bs-target=\"##{ item.key }\" data-bs-toggle=\"collapse\"" if consider_sub_navigation?(item)
+    a += ">"
+    a += "<i class=\"fas fa-#{ icon }\"></i>" if icon
+    a += "<span class=\"align-middle\">#{ item.name }</span></a>"
+    a
+  end
+
+  def make_subnavigation(item)
+    "<ul id=\"#{ item.key }\" class=\"sidebar-dropdown list-unstyled #{ item.selected? ? 'show' : 'collapse' }\">
+      #{ render_sub_navigation_for item }
+    </ul>"
+  end
+end
diff --git a/config/navigation.rb b/config/navigation.rb
index 0cf5b2b4ee59060be1c3192f4a36f014d82f02ae..f5202790206588dfe8dd40c142cd19d8961ff6df 100644
--- a/config/navigation.rb
+++ b/config/navigation.rb
@@ -1,5 +1,5 @@
 SimpleNavigation::Configuration.run do |navigation|
-  # navigation.renderer = ::Appstack::SimpleNavigationRenderer
+  navigation.renderer = ::SimpleNavigation::BootstrapRenderer
   navigation.auto_highlight = true
   navigation.highlight_on_subpath = true
   navigation.selected_class = 'active'