diff --git a/app/common/directives/app-navigation.html b/app/common/directives/app-navigation.html
index 435980a..41441e2 100644
--- a/app/common/directives/app-navigation.html
+++ b/app/common/directives/app-navigation.html
@@ -1,97 +1,119 @@
 <nav class="nav__wrapper">
   <ul id="nav__top-level" ng-style="navStyle">
     <li>
-      <a class="btn-overview" ng-class="{opened: firstLevel == 'overview'}" href="#/overview/server" ng-click="change('overview')">
+      <button ng-click="change('overview')">
         <icon class="nav-icon" file="icon-overview.svg" aria-hidden="true"></icon>
-        Server overview
-      </a>
-    </li>
-    <li>
-      <button class="btn-health" ng-class="{opened: firstLevel == 'server-health'}" ng-click="change('server-health')">
-        <icon class="nav-icon" file="icon-health.svg" aria-hidden="true"></icon>
-        Server health
+        <span class="nav-link">Overview</span>
       </button>
-      <ul class="nav__second-level btn-health" ng-style="navStyle" ng-class="{opened: (showSubMenu && firstLevel == 'server-health')}">
-        <li ng-class="{'active': (path == '/server-health/event-log')}">
-          <a href="#/server-health/event-log" ng-click="closeSubnav()" tabindex="{{(showSubMenu && firstLevel == 'server-health') ? 0 : -1}}">Event log</a>
+    </li>
+    <li ng-class="{opened: showHealthMenu}">
+      <button class="btn-health" ng-click="change('server-health')">
+        <icon class="nav-icon" file="icon-health.svg" aria-hidden="true"></icon>
+        <span class="nav-link">Health</span>
+      </button>
+      <ul class="nav__second-level btn-health" ng-style="navStyle" ng-class="{opened: (showHealthMenu)}">
+        <li ng-class="{'active': (path == '/server-health/sys-log')}">
+          <a href="#/server-health/sys-log" tabindex="{{(showHealthMenu) ? 0 : -1}}">
+            <span>Event log</span>
+          </a>
         </li>
         <li ng-class="{'active': (path == '/server-health/inventory-overview' || path == '/server-health/inventory')}">
-          <a href="#/server-health/inventory-overview" ng-click="closeSubnav()" tabindex="{{(showSubMenu && firstLevel == 'server-health') ? 0 : -1}}">Hardware status</a>
+          <a href="#/server-health/inventory-overview" tabindex="{{(showHealthMenu) ? 0 : -1}}">
+            <span>Hardware status</span>
+          </a>
         </li>
         <li ng-class="{'active': (path == '/server-health/sensors-overview' || path == '/server-health/sensors')}">
-          <a href="#/server-health/sensors-overview" ng-click="closeSubnav()" tabindex="{{(showSubMenu && firstLevel == 'server-health') ? 0 : -1}}">Sensors</a>
-        </li>
-        <li ng-class="{'active': (path == '/server-health/sys-log')}" ng-show="!dataService.configJson.redfishEventLogDisabled">
-          <a href="#/server-health/sys-log" ng-click="closeSubnav()" tabindex="{{(showSubMenu && firstLevel == 'server-health') ? 0 : -1}}">System logs</a>
+          <a href="#/server-health/sensors-overview" tabindex="{{(showHealthMenu) ? 0 : -1}}">
+            <span>Sensors</span>
+          </a>
         </li>
       </ul>
     </li>
-    <li>
-      <button class="btn-control" ng-class="{opened: firstLevel == 'server-control'}" ng-click="change('server-control')">
-        <icon class="nav-icon  nav-icon__control" file="icon-control.svg" aria-hidden="true"></icon>
-        Server control
+    <li ng-class="{opened: showControlMenu}">
+      <button ng-click="change('server-control')">
+        <icon class="nav-icon" file="icon-control.svg" aria-hidden="true"></icon>
+        <span class="nav-link">Control</span>
       </button>
-      <ul class="nav__second-level btn-control" ng-style="navStyle" ng-class="{opened: (showSubMenu && firstLevel == 'server-control')}">
+      <ul class="nav__second-level btn-control" ng-class="{opened: (showControlMenu)}">
         <li ng-class="{'active': (path == '/server-control' || path == '/server-control/power-operations')}">
-          <a href="#/server-control/power-operations" ng-click="closeSubnav()" tabindex="{{(showSubMenu && firstLevel == 'server-control') ? 0 : -1}}">Server power operations</a>
+          <a href="#/server-control/power-operations" tabindex="{{(showControlMenu) ? 0 : -1}}">
+            <span>Server power operations</span>
+          </a>
         </li>
         <li ng-class="{'active': (path == '/server-control/power-usage')}">
-          <a href="#/server-control/power-usage" ng-click="closeSubnav()" tabindex="{{(showSubMenu && firstLevel == 'server-control') ? 0 : -1}}">Manage power usage</a>
+          <a href="#/server-control/power-usage" tabindex="{{(showControlMenu) ? 0 : -1}}">
+            <span>Manage power usage</span>
+          </a>
         </li>
         <li ng-class="{'active': (path == '/server-control/server-led')}">
-          <a href="#/server-control/server-led" ng-click="closeSubnav()" tabindex="{{(showSubMenu && firstLevel == 'server-control') ? 0 : -1}}">Server LED</a>
+          <a href="#/server-control/server-led" tabindex="{{(showControlMenu) ? 0 : -1}}">
+            <span>Server LED</span>
+          </a>
         </li>
         <li ng-class="{'active': (path == '/server-control/bmc-reboot')}">
-          <a href="#/server-control/bmc-reboot" ng-click="closeSubnav()" tabindex="{{(showSubMenu && firstLevel == 'server-control') ? 0 : -1}}">Reboot BMC</a>
+          <a href="#/server-control/bmc-reboot" tabindex="{{(showControlMenu) ? 0 : -1}}">
+            <span>Reboot BMC</span>
+          </a>
         </li>
         <li ng-class="{'active': (path == '/server-control/remote-console')}">
-          <a href="#/server-control/remote-console" ng-click="closeSubnav()" tabindex="{{(showSubMenu && firstLevel == 'server-control') ? 0 : -1}}">Serial over LAN console</a>
+          <a href="#/server-control/remote-console" tabindex="{{(showControlMenu) ? 0 : -1}}">
+            <span>Serial over LAN console</span>
+          </a>
         </li>
         <li ng-class="{'active': (path == '/server-control/kvm')}">
-          <a href="#/server-control/kvm" ng-click="closeSubnav()" tabindex="{{(showSubMenu && firstLevel == 'server-control') ? 0 : -1}}">KVM</a>
+          <a href="#/server-control/kvm" tabindex="{{(showControlMenu) ? 0 : -1}}">
+            <span>KVM</span>
+          </a>
         </li>
-        <li ng-class="{'active': (path == '/server-control/virtual-media')}">
-          <a href="#/server-control/virtual-media" ng-click="closeSubnav()"
-            tabindex="{{(showSubMenu && firstLevel == 'server-control') ? 0 : -1}}">Virtual Media</a>
+        <li ng-class="{'active': (path == '/configuration' || path == '/configuration/virtual-media')}">
+          <a href="#/server-control/virtual-media" tabindex="{{(showControlMenu) ? 0 : -1}}">
+            <span>Virtual Media</span>
+          </a>
         </li>
       </ul>
     </li>
-    <li>
-      <button class="btn-config" ng-class="{opened: firstLevel == 'configuration'}" ng-click="change('configuration')">
+    <li ng-class="{opened: showConfigMenu}">
+      <button ng-click="change('configuration')">
         <icon class="nav-icon" file="icon-config.svg" aria-hidden="true"></icon>
-        Server configuration
+        <span class="nav-link">Configuration</span>
       </button>
-      <ul class="nav__second-level btn-firmware" ng-style="navStyle" ng-class="{opened: (showSubMenu && firstLevel == 'configuration')}">
+      <ul class="nav__second-level btn-firmware" ng-class="{opened: (showConfigMenu)}">
         <li ng-class="{'active': (path == '/configuration' || path == '/configuration/network')}">
-          <a href="#/configuration/network" ng-click="closeSubnav()" tabindex="{{(showSubMenu && firstLevel == 'configuration') ? 0 : -1}}">Network settings</a>
+          <a href="#/configuration/network" tabindex="{{(showConfigMenu) ? 0 : -1}}"><span>Network
+              settings</span></a>
         </li>
         <li ng-class="{'active': (path == '/configuration' || path == '/configuration/snmp')}">
-          <a href="#/configuration/snmp" ng-click="closeSubnav()" tabindex="{{(showSubMenu && firstLevel == 'configuration') ? 0 : -1}}">SNMP settings</a>
+          <a href="#/configuration/snmp" tabindex="{{(showConfigMenu) ? 0 : -1}}"><span>SNMP
+              settings</span></a>
         </li>
         <li ng-class="{'active': (path == '/configuration' || path == '/configuration/firmware')}">
-          <a href="#/configuration/firmware" ng-click="closeSubnav()" tabindex="{{(showSubMenu && firstLevel == 'configuration') ? 0 : -1}}">Firmware</a>
+          <a href="#/configuration/firmware" tabindex="{{(showConfigMenu) ? 0 : -1}}"><span>Firmware</span></a>
         </li>
         <li ng-class="{'active': (path == '/configuration' || path == '/configuration/date-time')}">
-          <a href="#/configuration/date-time" ng-click="closeSubnav()" tabindex="{{(showSubMenu && firstLevel == 'configuration') ? 0 : -1}}">Date and time settings</a>
+          <a href="#/configuration/date-time" tabindex="{{(showConfigMenu) ? 0 : -1}}"><span>Date and
+              time
+              settings</span></a>
         </li>
       </ul>
     </li>
-    <li>
-      <button class="btn-access-control" ng-class="{opened: firstLevel == 'access-control'}" ng-click="change('access-control')">
-          <icon class="nav-icon nav-icon__key" file="icon-key.svg" aria-hidden="true"></icon>
-          Access control
+    <li ng-class="{opened: showAccessMenu}">
+      <button ng-click="change('access-control')">
+        <icon class="nav-icon" file="icon-user.svg" aria-hidden="true"></icon>
+        <span class="nav-link">Access</span>
       </button>
-      <ul class="nav__second-level btn-access-control" ng-style="navStyle" ng-class="{opened: (showSubMenu && firstLevel == 'access-control')}">
+      <ul class="nav__second-level btn-users" ng-style="navStyle" ng-class="{opened: (showAccessMenu)}">
         <li ng-class="{'active': (path == '/access-control' || path == '/access-control/ldap')}">
-          <a href="#/access-control/ldap" ng-click="closeSubnav()" tabindex="{{(showSubMenu && firstLevel == 'configuration') ? 0 : -1}}">LDAP</a>
+          <a href="#/access-control/ldap" tabindex="{{ (showAccessMenu) ? 0 : -1}}"><span>LDAP</span></a>
         </li>
         <li ng-class="{'active': (path == '/access-control' || path == '/access-control/local-users')}">
-          <a href="#/access-control/local-users" ng-click="closeSubnav()" tabindex="{{ (showSubMenu && firstLevel == 'access-control') ? 0 : -1}}">Local users</a>
+          <a href="#/access-control/local-users" tabindex="{{ (showAccessMenu) ? 0 : -1}}"><span>Local
+              users</span></a>
         </li>
         <li ng-class="{'active': (path == '/access-control' || path == '/access-control/ssl-certificates')}">
-          <a href="#/access-control/ssl-certificates" ng-click="closeSubnav()" tabindex="{{(showSubMenu && firstLevel == 'configuration') ? 0 : -1}}">SSL certificates</a>
+          <a href="#/access-control/ssl-certificates" tabindex="{{ (showAccessMenu) ? 0 : -1}}"><span>SSL
+              certificates</span></a>
         </li>
       </ul>
     </li>
   </ul>
-</nav>
+</nav>
\ No newline at end of file
diff --git a/app/common/directives/app-navigation.js b/app/common/directives/app-navigation.js
index baa8c8b..a2ced03 100644
--- a/app/common/directives/app-navigation.js
+++ b/app/common/directives/app-navigation.js
@@ -10,18 +10,30 @@
           'controller': [
             '$scope', '$location', 'dataService',
             function($scope, $location, dataService) {
+              $scope.showHealthMenu = false;
+              $scope.showControlMenu = false;
+              $scope.showConfigMenu = false;
+              $scope.showAccessMenu = false;
               $scope.dataService = dataService;
-              $scope.showSubMenu = false;
+
               $scope.change = function(firstLevel) {
-                if (firstLevel != $scope.firstLevel) {
-                  $scope.firstLevel = firstLevel;
-                  $scope.showSubMenu = true;
-                } else {
-                  $scope.showSubMenu = !$scope.showSubMenu;
-                }
-              };
-              $scope.closeSubnav = function() {
-                $scope.showSubMenu = false;
+                switch (firstLevel) {
+                  case 'server-health':
+                    $scope.showHealthMenu = !$scope.showHealthMenu;
+                    break;
+                  case 'server-control':
+                    $scope.showControlMenu = !$scope.showControlMenu;
+                    break;
+                  case 'configuration':
+                    $scope.showConfigMenu = !$scope.showConfigMenu;
+                    break;
+                  case 'access-control':
+                    $scope.showAccessMenu = !$scope.showAccessMenu;
+                    break;
+                  case 'overview':
+                    $location.url('/overview/server');
+                    break;
+                };
               };
               $scope.$watch('path', function() {
                 var urlRoot = $location.path().split('/')[1];
@@ -30,22 +42,15 @@
                 } else {
                   $scope.firstLevel = 'overview';
                 }
-                $scope.showSubMenu = false;
+                $scope.showSubMenu = true;
               });
               $scope.$watch('showNavigation', function() {
-                var paddingTop = 0;
                 var urlRoot = $location.path().split('/')[1];
                 if (urlRoot != '') {
                   $scope.firstLevel = urlRoot;
                 } else {
                   $scope.firstLevel = 'overview';
                 }
-
-                if ($scope.showNavigation) {
-                  paddingTop = document.getElementById('header').offsetHeight;
-                }
-                dataService.bodyStyle = {'padding-top': paddingTop + 'px'};
-                $scope.navStyle = {'top': paddingTop + 'px'};
               });
             }
           ],
@@ -56,11 +61,11 @@
 
               if (scope.showSubMenu) {
                 scope.$apply(function() {
-                  scope.showSubMenu = false;
+                  scope.showSubMenu = true;
                 });
               }
             });
           }
         };
       });
-})(window.angular);
+})(window.angular);
\ No newline at end of file
diff --git a/app/common/styles/directives/app-navigation.scss b/app/common/styles/directives/app-navigation.scss
index f8f5a6f..519c3ee 100644
--- a/app/common/styles/directives/app-navigation.scss
+++ b/app/common/styles/directives/app-navigation.scss
@@ -1,34 +1,14 @@
-$nav__toplvlWidth: 125px;
-$nav__seclvlWidth: 240px;
-$nav__top-level-color: $base-01--01;
-$nav__second-level-color: $base-02--06;
-$nav__second-level-text-color: $base-02--01;
+$nav__toplvlWidth: 240px;
+$nav__top-level-color: $color--blue-100;
+$nav__top-level-text-secondary: $color--grey-20;
+$nav__second-level-text-primary: $color--teal-50;
+$nav__second-level-text-secondary: $primary-light;
+$nav__hover-over-outline: $color--grey-40;
 
 //Navigation icons
-@mixin navIcons {
-  color: $primary-light;
-  fill: $primary-light;
-  max-height: 40px;
-  stroke-width: .5;
-  display: block;
-  margin: .5em auto;
-  .st0 {
-    fill: none;
-    stroke: $primary-light;
-    stroke-width: 2;
-    stroke-miterlimit: 10;
-  }
-  .st1 {
-    fill: none;
-    stroke: $primary-light;
-    stroke-width: 4;
-    stroke-miterlimit: 10;
-  }
-}
-
 .nav__wrapper {
   height: 100%;
-  position: fixed;
+  position: absolute;
   top: 0;
   z-index: 100;
 }
@@ -36,158 +16,156 @@
 // Top level navigation
 #nav__top-level {
   background: $nav__top-level-color;
-  position: absolute;
+  position: fixed;
   left: 0;
   top: 0;
   bottom: 0;
   list-style-type: none;
-  margin: 0;
-  padding: 0;
+  padding: 22px 0 0 0;
+  margin: 130px 0 0 0;
   width: $nav__toplvlWidth;
   overflow-y: auto;
-  li {
+  >li {
     margin: 0;
+    height: 3em;
+    &.opened{
+      height: inherit;
+      .nav-link{
+        color: $primary-light;
+      }
+    }
   }
   > li > a,
   > li > button {
-    height: 120px;
+    height: 3.3em;
   }
-  //svg icons
-  .nav-icon {
-    @include navIcons;
-    width: 100%;
-    height: 100%;
-    svg {
-      width: 36px;
-      height: auto;
-    }
-  }
-  .nav-icon__control,
-  .nav-icon__key {
-    svg {
-      width: 30px;
-    }
-  }
-  .button, button, a {
-    background: transparent;
-    border: 0;
-    color: $primary-light;
-    fill: $primary-light;
-    width: 100%;
-    padding: 1em;
-    display: block;
-    text-align: center;
-    margin-bottom: 0;
-    white-space: normal;
-    border-radius: 0;
-    text-decoration: none;
-    border-top: 1px solid transparent;
-    border-bottom: 1px solid $border-color-02;
-    font-weight: normal;
-    font-size: .9em;
-    line-height: 1.2;
+  button,
+  a,
+  span {
     &:hover {
-      background: $primary-light;
-      fill: $primary-dark;
-      color: $primary-action;
-      padding: 1em;
+      &.opened{
+        color: $primary-light;
+      }
+    }
+  }
+  .nav-icon {
+      height: 26px;
+      float: left;
+      margin: 2px 0 0 1px;
+      width: 26px;
+      fill: $primary-light;
+      svg {
+        height: inherit;
+        width:  26px;
+        max-width: inherit;
+        fill: $primary-light;
+      }
+  }
+  .nav-link {
+      float: left;
+      font-size: 15px;
+      padding: 9px 0 0 7px;
+      margin-left: 5px;
+      &:focus{
+        outline: 0;
+      }
+    }
+}
+
+.nav__wrapper button {
+  background: transparent;
+  border: 0;
+  color: $primary-light;
+  width: 95%;
+  padding: 5px 5px 9px 10px;
+  margin: 0 0 0 6px;
+  display: block;
+  text-align: center;
+  white-space: normal;
+  border-radius: 0;
+  text-decoration: none;
+  border: 1px solid transparent;
+  font-weight: normal;
+  font-size: 13px;
+  &:hover,
+  &:focus {
+    background: fade-out(#ffffff, 0.9);
+    color: $nav__top-level-text-secondary;
+    border-radius: 0;
+    border: 1px solid $nav__hover-over-outline;
+    outline: 0;
+  }
+  .icon {
+    margin-left: .3em;
+    margin-top: .6em;
+  }
+  img {
+    width: 2em;
+    height: 2em;
+  }
+}
+
+.nav__second-level  {
+  list-style-type: none;
+  opacity: 0;
+  left: $nav__toplvlWidth;
+  padding: 0;
+  margin: 0;
+  transform: scaleY(0);
+  transform-origin: 0 0;
+  transition: all $duration--moderate-01 $standard-easing--expressive;
+  overflow: hidden;
+  line-height: 0;
+  a {
+    color: $primary-light;
+    width: 95%;
+    padding: 6px 5px 8px 50px;
+    margin: 0 0 0 6px;
+    white-space: normal;
+    text-decoration: none;
+    border: 1px solid transparent;
+    font-weight: normal;
+    font-size: .8rem;
+    &:hover,
+    &:focus {
+      background: fade-out(#ffffff, 0.9);
+      color: $nav__second-level-text-secondary;
       border-radius: 0;
-      border-bottom: 1px solid $border-color-01;
-      .nav__icon-help__outer {
-        stroke: $primary-dark;
-      }
-      .nav__icon-help__inner {
-        fill: $primary-action;
-      }
-      .nav-icon {
-        fill: $primary-action;
-        color: $primary-action;
-        .st0 {
-          stroke: $primary-action;
-        }
-        .st1 {
-          fill: $primary-action;
-          color: $primary-action;
-          stroke: $primary-action;
-        }
-      }
+      border-color: $nav__hover-over-outline;
+      outline: 0;
     }
   }
-  .opened {
-    background: $nav__second-level-color;
-    fill: $primary-dark;
-    color: darken($primary-action, 10%);
-    border-bottom: 1px solid $border-color-01;
-    .nav-icon {
-      fill: $primary-action;
-      color: $primary-action;
-      .st0 {
-        stroke: $primary-action;
-      }
-      .st1 {
-        fill: $primary-action;
-        color: $primary-action;
-        stroke: $primary-action;
-      }
+  &.opened {
+    line-height: 1.1;
+    overflow: visible;
+    opacity: 1;
+    transform: scaleY(1);
+    transition: all $duration--moderate-01 $standard-easing--expressive;
+    li a{
+      display:block;
     }
   }
 
-  // Second Level Navigation
-  .nav__second-level {
-    position: fixed;
-    background: $nav__second-level-color;
-    top: 0;
-    bottom: 0;
-    left: -245px;
-    width: $nav__seclvlWidth;
-    z-index: -1;
-    padding: 0;
+  li:hover
+  {
+    margin-left: 17px;
     margin: 0;
-    list-style-type: none;
-    display: block;
-    transition: left $duration--slow-01 $standard-easing--productive;
-    &.opened {
-      left: $nav__toplvlWidth;
-      box-shadow: 7px 0 28px -10px $base-02--02;
+    padding: 0;
+    a{
+      padding-left: 50px;
     }
-    a {
-      padding: 1.2em 1em 1.2em 1em;
-      display: block;
-      color: $primary-dark;
-      text-decoration: none;
-      position: relative;
-      font-weight: 400;
-      text-align: left;
-      border-bottom: 1px solid transparent;
-      &:hover {
-        background: $primary-light;
-      }
-    }
+  }
 
-    li {
-      a:after{
-        content: '\203A';
-        position: absolute;
-        font-size: 2em;
-        font-weight: 700;
-        top: 50%;
-        right: .6em;
-        transform: translateY(-59%);
-        color: $nav__second-level-text-color;
-        opacity: 0;
+  li {
+    &:focus,
+    &:hover {
+      a {
+        color: $nav__second-level-text-secondary;
       }
-      &.active {
-        a {font-weight: 700;}
-      }
-      &.active,
-      &:focus,
-      &:hover {
-        a {color: $nav__second-level-text-color;}
-        a:after {
-          opacity: 1;
-          right: .3em;
-          @include fastTransition-all;
-        }
+    }
+    &.active {
+      a span {
+        color: $nav__second-level-text-primary;
       }
     }
   }
diff --git a/app/common/styles/layout/content.scss b/app/common/styles/layout/content.scss
index f5d2757..143c52a 100644
--- a/app/common/styles/layout/content.scss
+++ b/app/common/styles/layout/content.scss
@@ -1,12 +1,11 @@
 // Content layout styles
-$nav__toplvlWidth: 120px;
-$nav__seclvlWidth: 240px;
+$nav__toplvlWidth: 240px;
 
 // Main element class
 .content__container {
   margin-left: $nav__toplvlWidth;
   padding: 1em 0.1em;
-
+  margin-top: 130px;
   @include mediaQuery(x-small) {
     padding: 1rem 2rem;
   }