diff --git a/mobile/src/main/res/layout/activity_main.xml b/mobile/src/main/res/layout/activity_main.xml
index 890758df..d625ee21 100644
--- a/mobile/src/main/res/layout/activity_main.xml
+++ b/mobile/src/main/res/layout/activity_main.xml
@@ -23,14 +23,22 @@
             android:id="@+id/navigation"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
-            android:layout_marginEnd="0dp"
-            android:layout_marginStart="0dp"
             android:background="?android:attr/windowBackground"
-            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintBottom_toTopOf="@+id/line"
             app:layout_constraintLeft_toLeftOf="parent"
             app:layout_constraintRight_toRightOf="parent"
             app:menu="@menu/navigation"/>
 
+        <View
+            android:id="@+id/line"
+            android:layout_width="0dp"
+            android:layout_height="1dp"
+            android:background="@android:color/white"
+            android:elevation="9dp"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintLeft_toLeftOf="parent"
+            app:layout_constraintRight_toRightOf="parent"/>
+
     </android.support.constraint.ConstraintLayout>
 
 </layout>
diff --git a/mobile/src/main/res/values-v27/styles.xml b/mobile/src/main/res/values-v27/styles.xml
new file mode 100644
index 00000000..2628b73d
--- /dev/null
+++ b/mobile/src/main/res/values-v27/styles.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="AppTheme" parent="Theme.Design.Light.NoActionBar">
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+        <item name="preferenceTheme">@style/AppTheme.Preference</item>
+        <item name="android:navigationBarColor">@android:color/white</item>
+        <item name="android:windowLightNavigationBar">true</item>
+    </style>
+
+</resources>