diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 518f078..0d686e1 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -10,7 +10,8 @@
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
-        android:theme="@style/AppTheme">
+        android:screenOrientation="portrait"
+        android:theme="@style/Theme.AppCompat.Light.NoActionBar.FullScreen">
         <activity android:name=".MainActivity">
             <!-- Launcher -->
             <intent-filter>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index 5885930..b60e4d3 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -1,11 +1,8 @@
 <resources>
-
-    <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
-        <!-- Customize your theme here. -->
-        <item name="colorPrimary">@color/colorPrimary</item>
-        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
-        <item name="colorAccent">@color/colorAccent</item>
+    <style name="Theme.AppCompat.Light.NoActionBar.FullScreen" parent="@style/Theme.AppCompat.Light">
+        <item name="windowNoTitle">true</item>
+        <item name="windowActionBar">false</item>
+        <item name="android:windowFullscreen">true</item>
+        <item name="android:windowContentOverlay">@null</item>
     </style>
-
 </resources>