diff --git a/webapp/components/NotificationMenu/NotificationMenu.vue b/webapp/components/NotificationMenu/NotificationMenu.vue
index ec991f0ef..4256278af 100644
--- a/webapp/components/NotificationMenu/NotificationMenu.vue
+++ b/webapp/components/NotificationMenu/NotificationMenu.vue
@@ -112,16 +112,6 @@ export default {
 </script>
 
 <style lang="scss">
-.notifications-menu {
-  flex-shrink: 0;
-  display: flex;
-  align-items: center;
-
-  .base-button {
-    overflow: visible;
-  }
-}
-
 .notifications-menu-popover {
   max-width: 500px;
   margin-bottom: $size-height-base;
diff --git a/webapp/components/PageFooter/PageFooter.vue b/webapp/components/PageFooter/PageFooter.vue
index c71fc4b5c..798d52f47 100644
--- a/webapp/components/PageFooter/PageFooter.vue
+++ b/webapp/components/PageFooter/PageFooter.vue
@@ -50,4 +50,9 @@ export default {
   margin-left: 0.2rem;
   margin-right: 0.2rem;
 }
+@media only screen and (max-width: 810px) {
+  .ds-footer {
+    display: none;
+  }
+}
 </style>
diff --git a/webapp/constants/headerMenu.js b/webapp/constants/headerMenu.js
index 5365e0dc1..6d0a0afad 100644
--- a/webapp/constants/headerMenu.js
+++ b/webapp/constants/headerMenu.js
@@ -1,12 +1,12 @@
 export default {
   MENU: [
     // {
-    //   nameIdent: 'ocelotRebranding.newsFeed',
+    //   nameIdent: 'nameIdent',
     //   path: '/',
     // },
     // {
-    //   nameIdent: 'ocelotRebranding.about',
-    //   url: 'https://ocelot.org',
+    //   nameIdent: 'nameIdent',
+    //   url: 'https://ocelot.social',
     // },
   ],
 }
diff --git a/webapp/layouts/default.vue b/webapp/layouts/default.vue
index 892e7b719..98b6b3978 100644
--- a/webapp/layouts/default.vue
+++ b/webapp/layouts/default.vue
@@ -3,7 +3,9 @@
     <div class="main-navigation">
       <ds-container class="main-navigation-container" style="padding: 10px 10px">
         <div>
-          <ds-flex class="main-navigation-flex">
+          <!-- header menu -->
+          <ds-flex v-if="!showMobileMenu" class="main-navigation-flex">
+            <!-- logo -->
             <ds-flex-item :width="{ base: LOGOS.LOGO_HEADER_WIDTH }" style="margin-right: 20px">
               <a
                 v-if="LOGOS.LOGO_HEADER_CLICK.externalLink"
@@ -19,11 +21,12 @@
                 <logo logoType="header" />
               </nuxt-link>
             </ds-flex-item>
-
+            <!-- dynamic-brand-menu -->
             <ds-flex-item
               v-for="item in menu"
               :key="item.name"
               :class="{ 'hide-mobile-menu': !toggleMobileMenu }"
+              class="branding-menu"
               :width="{ base: 'auto' }"
               style="margin-right: 20px"
             >
@@ -38,26 +41,26 @@
                 </ds-text>
               </nuxt-link>
             </ds-flex-item>
+
+            <!-- search-field -->
             <ds-flex-item
-              :width="{ base: '40%', sm: '40%', md: '40%', lg: '0%' }"
-              class="mobile-hamburger-menu"
-            >
-              <base-button icon="bars" @click="toggleMobileMenuView" circle />
-            </ds-flex-item>
-            <ds-flex-item
+              v-if="isLoggedIn"
+              id="nav-search-box"
+              :class="{ 'hide-mobile-menu': !toggleMobileMenu }"
+              class="header-search"
               :width="{
                 base: '45%',
-                sm: '45%',
-                md: isHeaderMenu ? 'auto' : '45%',
+                sm: '40%',
+                md: isHeaderMenu ? 'auto' : '40%',
                 lg: isHeaderMenu ? 'auto' : '50%',
               }"
-              :class="{ 'hide-mobile-menu': !toggleMobileMenu }"
               style="flex-shrink: 0; flex-grow: 1"
-              id="nav-search-box"
-              v-if="isLoggedIn"
             >
               <search-field />
             </ds-flex-item>
+            <!-- filter-menu 
+                TODO: Filter is only visible on index    
+            -->
             <ds-flex-item
               v-if="isLoggedIn"
               :class="{ 'hide-mobile-menu': !toggleMobileMenu }"
@@ -67,6 +70,7 @@
                 <filter-menu v-show="showFilterMenuDropdown" />
               </client-only>
             </ds-flex-item>
+            <!-- locale-switch -->
             <ds-flex-item
               style="flex-basis: auto"
               :class="{ 'hide-mobile-menu': !toggleMobileMenu }"
@@ -82,10 +86,12 @@
                 <locale-switch class="topbar-locale-switch" placement="top" offset="8" />
                 <template v-if="isLoggedIn">
                   <client-only>
+                    <!-- notification-menu -->
                     <notification-menu placement="top" />
                   </client-only>
                   <div v-if="inviteRegistration">
                     <client-only>
+                      <!-- invite-button -->
                       <invite-button placement="top" />
                     </client-only>
                   </div>
@@ -93,12 +99,110 @@
                     <group-button />
                   </client-only>
                   <client-only>
+                    <!-- avatar-menu -->
                     <avatar-menu placement="top" />
                   </client-only>
                 </template>
               </div>
             </ds-flex-item>
           </ds-flex>
+
+          <!-- mobile header menu -->
+          <div v-else>
+            <!-- logo, hamburger-->
+            <ds-flex>
+              <ds-flex-item :width="{ base: LOGOS.LOGO_HEADER_WIDTH }" style="margin-right: 20px">
+                <nuxt-link :to="{ name: 'index' }" v-scroll-to="'.main-navigation'">
+                  <logo logoType="header" />
+                </nuxt-link>
+              </ds-flex-item>
+
+              <!-- hamburger button -->
+              <ds-flex-item class="mobile-hamburger-menu">
+                <client-only>
+                  <div style="display: inline-flex; padding-right: 20px">
+                    <notification-menu />
+                  </div>
+                </client-only>
+                <base-button icon="bars" @click="toggleMobileMenuView" circle />
+              </ds-flex-item>
+            </ds-flex>
+            <!-- search, filter-->
+            <ds-flex class="mobile-menu">
+              <!-- search-field mobile-->
+              <ds-flex-item
+                v-if="isLoggedIn"
+                :class="{ 'hide-mobile-menu': !toggleMobileMenu }"
+                style="padding: 20px"
+              >
+                <search-field />
+              </ds-flex-item>
+              <!-- filter menu mobile-->
+              <ds-flex-item
+                v-if="isLoggedIn"
+                :class="{ 'hide-mobile-menu': !toggleMobileMenu }"
+                style="flex-grow: 0; flex-basis: auto; padding: 20px 0"
+              >
+                <client-only>
+                  <filter-menu v-show="showFilterMenuDropdown" />
+                </client-only>
+              </ds-flex-item>
+            </ds-flex>
+            <!-- switch language, notification, invite, profil -->
+            <ds-flex style="margin: 0 20px">
+              <!-- locale-switch mobile-->
+              <ds-flex-item :class="{ 'hide-mobile-menu': !toggleMobileMenu }">
+                <locale-switch class="topbar-locale-switch" placement="top" offset="8" />
+              </ds-flex-item>
+              <!-- invite-button mobile-->
+              <ds-flex-item
+                :class="{ 'hide-mobile-menu': !toggleMobileMenu }"
+                style="text-align: center"
+              >
+                <client-only>
+                  <invite-button placement="top" />
+                </client-only>
+              </ds-flex-item>
+              <ds-flex-item
+                :class="{ 'hide-mobile-menu': !toggleMobileMenu }"
+                style="text-align: end"
+              >
+                <client-only>
+                  <!-- avatar-menu mobile-->
+                  <avatar-menu placement="top" />
+                </client-only>
+              </ds-flex-item>
+            </ds-flex>
+            <div
+              :class="{ 'hide-mobile-menu': !toggleMobileMenu }"
+              class="mobile-menu footer-mobile"
+            >
+              <!-- dynamic branding menu  -->
+              <ul v-if="isHeaderMenu" class="dynamic-branding-mobil">
+                <li v-for="item in menu" :key="item.name">
+                  <a v-if="item.url" :href="item.url" target="_blank">
+                    <ds-text size="large" bold>
+                      {{ $t(item.nameIdent) }}
+                    </ds-text>
+                  </a>
+                  <nuxt-link v-else :to="item.path">
+                    <ds-text size="large" bold>
+                      {{ $t(item.nameIdent) }}
+                    </ds-text>
+                  </nuxt-link>
+                </li>
+              </ul>
+              <hr />
+              <!-- dynamic footer menu in header  -->
+              <ul class="dynamic-footer-mobil">
+                <li v-for="pageParams in links.FOOTER_LINK_LIST" :key="pageParams.name">
+                  <page-params-link :pageParams="pageParams">
+                    {{ $t(pageParams.internalPage.footerIdent) }}
+                  </page-params-link>
+                </li>
+              </ul>
+            </div>
+          </div>
         </div>
       </ds-container>
     </div>
@@ -118,44 +222,49 @@
 <script>
 import { mapGetters } from 'vuex'
 import { SHOW_GROUP_BUTTON_IN_HEADER } from '~/constants/groups.js'
+import links from '~/constants/links.js'
 import LOGOS from '../constants/logos.js'
 import headerMenu from '../constants/headerMenu.js'
 import seo from '~/mixins/seo'
 import AvatarMenu from '~/components/AvatarMenu/AvatarMenu'
 import FilterMenu from '~/components/FilterMenu/FilterMenu.vue'
+import GroupButton from '~/components/Group/GroupButton'
 import InviteButton from '~/components/InviteButton/InviteButton'
 import LocaleSwitch from '~/components/LocaleSwitch/LocaleSwitch'
 import Logo from '~/components/Logo/Logo'
 import SearchField from '~/components/features/SearchField/SearchField.vue'
 import Modal from '~/components/Modal'
-import GroupButton from '~/components/Group/GroupButton'
 import NotificationMenu from '~/components/NotificationMenu/NotificationMenu'
 import PageFooter from '~/components/PageFooter/PageFooter'
+import PageParamsLink from '~/components/_new/features/PageParamsLink/PageParamsLink.vue'
 
 export default {
   components: {
     AvatarMenu,
     FilterMenu,
+    GroupButton,
     InviteButton,
     LocaleSwitch,
     Logo,
     Modal,
     NotificationMenu,
     PageFooter,
-    GroupButton,
+    PageParamsLink,
     SearchField,
   },
   mixins: [seo],
   data() {
     return {
+      inviteRegistration: this.$env.INVITE_REGISTRATION === true, // for 'false' in .env INVITE_REGISTRATION is of type undefined and not(!) boolean false, because of internal handling,
+      categoriesActive: this.$env.CATEGORIES_ACTIVE,
+      links,
       LOGOS,
       SHOW_GROUP_BUTTON_IN_HEADER,
       isHeaderMenu: headerMenu.MENU.length > 0,
       menu: headerMenu.MENU,
       mobileSearchVisible: false,
+      windowWidth: null,
       toggleMobileMenu: false,
-      inviteRegistration: this.$env.INVITE_REGISTRATION === true, // for 'false' in .env INVITE_REGISTRATION is of type undefined and not(!) boolean false, because of internal handling,
-      categoriesActive: this.$env.CATEGORIES_ACTIVE,
     }
   },
   computed: {
@@ -166,12 +275,22 @@ export default {
       const [firstRoute] = this.$route.matched
       return firstRoute && firstRoute.name === 'index'
     },
+    showMobileMenu() {
+      if (!this.windowWidth) return false
+      return this.windowWidth < 810
+    },
   },
   methods: {
     toggleMobileMenuView() {
       this.toggleMobileMenu = !this.toggleMobileMenu
     },
   },
+  mounted() {
+    this.windowWidth = window.innerWidth
+    window.addEventListener('resize', () => {
+      this.windowWidth = window.innerWidth
+    })
+  },
 }
 </script>
 
@@ -213,18 +332,38 @@ export default {
   margin-left: auto;
   text-align: right;
 }
-@media only screen and (min-width: 730px) {
-  .mobile-hamburger-menu {
-    display: none;
-  }
+
+.mobile-menu {
+  margin: 0 20px;
 }
-@media only screen and (max-width: 730px) {
+.mobile-search {
+  margin-top: 20px;
+}
+
+.dynamic-branding-mobil,
+.dynamic-footer-mobil {
+  line-height: 30px;
+  font-size: large;
+}
+.dynamic-branding-mobil li {
+  margin: 17px 0;
+}
+
+@media only screen and (max-width: 810px) {
   #nav-search-box,
   .main-navigation-right {
     margin: 10px 0px;
   }
+  .main-navigation-right {
+    width: 100%;
+  }
   .hide-mobile-menu {
     display: none;
   }
 }
+@media only screen and (min-width: 810px) {
+  .main-navigation-right {
+    width: 100%;
+  }
+}
 </style>