diff --git a/app/src/main/res/layout-land/admin_auth_activity.xml b/app/src/main/res/layout-land/admin_auth_activity.xml
index 401cd7499c7..22a78c9c216 100644
--- a/app/src/main/res/layout-land/admin_auth_activity.xml
+++ b/app/src/main/res/layout-land/admin_auth_activity.xml
@@ -61,16 +61,14 @@
 
           <TextView
             android:id="@+id/admin_auth_heading_textview"
+            style="@style/Heading2"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_marginStart="72dp"
             android:layout_marginTop="44dp"
             android:layout_marginEnd="72dp"
-            android:fontFamily="sans-serif-medium"
             android:maxLines="2"
             android:text="@string/admin_auth_heading"
-            android:textColor="@color/oppiaPrimaryText"
-            android:textSize="20sp"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintHorizontal_bias="0.0"
             app:layout_constraintStart_toStartOf="parent"
@@ -78,13 +76,12 @@
 
           <TextView
             android:id="@+id/admin_auth_sub_text"
+            style="@style/Subtitle1"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_marginTop="12dp"
-            android:fontFamily="sans-serif"
             android:text="@string/admin_auth_sub"
             android:textColor="@color/oppiaAdminAuthSecondaryText"
-            android:textSize="16sp"
             app:layout_constraintEnd_toEndOf="@+id/admin_auth_heading_textview"
             app:layout_constraintStart_toStartOf="@+id/admin_auth_heading_textview"
             app:layout_constraintTop_toBottomOf="@id/admin_auth_heading_textview" />
@@ -95,8 +92,8 @@
             android:layout_height="wrap_content"
             android:layout_marginStart="168dp"
             android:layout_marginTop="48dp"
-            android:layout_marginBottom="4dp"
             android:layout_marginEnd="168dp"
+            android:layout_marginBottom="4dp"
             android:addTextChangedListener="@{viewModel.inputPinTextWatcher}"
             android:imeOptions="actionDone"
             app:inputLength="5"
diff --git a/app/src/main/res/layout-sw600dp-land/admin_auth_activity.xml b/app/src/main/res/layout-sw600dp-land/admin_auth_activity.xml
index c72008c3471..3d3ebb1c18b 100644
--- a/app/src/main/res/layout-sw600dp-land/admin_auth_activity.xml
+++ b/app/src/main/res/layout-sw600dp-land/admin_auth_activity.xml
@@ -63,14 +63,12 @@
 
           <TextView
             android:id="@+id/admin_auth_heading_textview"
+            style="@style/Heading2"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_marginTop="48dp"
-            android:fontFamily="sans-serif-medium"
             android:maxLines="2"
             android:text="@string/admin_auth_heading"
-            android:textColor="@color/oppiaPrimaryText"
-            android:textSize="20sp"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintHorizontal_bias="0.0"
             app:layout_constraintStart_toStartOf="parent"
@@ -78,13 +76,12 @@
 
           <TextView
             android:id="@+id/admin_auth_sub_text"
+            style="@style/Subtitle1"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_marginTop="12dp"
-            android:fontFamily="sans-serif"
             android:text="@string/admin_auth_sub"
             android:textColor="@color/oppiaAdminAuthSecondaryText"
-            android:textSize="16sp"
             app:layout_constraintEnd_toEndOf="@+id/admin_auth_heading_textview"
             app:layout_constraintStart_toStartOf="@+id/admin_auth_heading_textview"
             app:layout_constraintTop_toBottomOf="@id/admin_auth_heading_textview" />
diff --git a/app/src/main/res/layout-sw600dp-port/admin_auth_activity.xml b/app/src/main/res/layout-sw600dp-port/admin_auth_activity.xml
index 8b323dace9a..435269b905f 100644
--- a/app/src/main/res/layout-sw600dp-port/admin_auth_activity.xml
+++ b/app/src/main/res/layout-sw600dp-port/admin_auth_activity.xml
@@ -56,27 +56,24 @@
 
         <TextView
           android:id="@+id/admin_auth_heading_textview"
+          style="@style/Heading2"
           android:layout_width="0dp"
           android:layout_height="wrap_content"
           android:layout_marginTop="48dp"
-          android:fontFamily="sans-serif-medium"
           android:maxLines="2"
           android:text="@string/admin_auth_heading"
-          android:textColor="@color/oppiaPrimaryText"
-          android:textSize="20sp"
           app:layout_constraintEnd_toEndOf="parent"
           app:layout_constraintStart_toStartOf="parent"
           app:layout_constraintTop_toTopOf="parent" />
 
         <TextView
           android:id="@+id/admin_auth_sub_text"
+          style="@style/Subtitle1"
           android:layout_width="0dp"
           android:layout_height="wrap_content"
           android:layout_marginTop="12dp"
-          android:fontFamily="sans-serif"
           android:text="@string/admin_auth_sub"
           android:textColor="@color/oppiaAdminAuthSecondaryText"
-          android:textSize="16sp"
           app:layout_constraintEnd_toEndOf="parent"
           app:layout_constraintStart_toStartOf="parent"
           app:layout_constraintTop_toBottomOf="@id/admin_auth_heading_textview" />
@@ -111,7 +108,6 @@
           app:layout_constraintEnd_toEndOf="@+id/admin_auth_input_pin"
           app:layout_constraintTop_toBottomOf="@id/admin_auth_input_pin"
           app:layout_constraintVertical_bias="0.0" />
-
       </androidx.constraintlayout.widget.ConstraintLayout>
 
       <View
diff --git a/app/src/main/res/layout/admin_auth_activity.xml b/app/src/main/res/layout/admin_auth_activity.xml
index cc8c306fa24..2bde1a3e2c0 100644
--- a/app/src/main/res/layout/admin_auth_activity.xml
+++ b/app/src/main/res/layout/admin_auth_activity.xml
@@ -54,31 +54,28 @@
 
         <TextView
           android:id="@+id/admin_auth_heading_textview"
+          style="@style/Heading2"
           android:layout_width="match_parent"
           android:layout_height="wrap_content"
           android:layout_marginStart="28dp"
           android:layout_marginTop="40dp"
           android:layout_marginEnd="28dp"
-          android:fontFamily="sans-serif-medium"
           android:maxLines="2"
           android:text="@string/admin_auth_heading"
-          android:textColor="@color/oppiaPrimaryText"
-          android:textSize="20sp"
           app:layout_constraintEnd_toEndOf="parent"
           app:layout_constraintStart_toStartOf="parent"
           app:layout_constraintTop_toTopOf="parent" />
 
         <TextView
           android:id="@+id/admin_auth_sub_text"
+          style="@style/Subtitle1"
           android:layout_width="0dp"
           android:layout_height="wrap_content"
           android:layout_marginStart="28dp"
           android:layout_marginTop="12dp"
           android:layout_marginEnd="28dp"
-          android:fontFamily="sans-serif"
           android:text="@string/admin_auth_sub"
           android:textColor="@color/oppiaAdminAuthSecondaryText"
-          android:textSize="16sp"
           app:layout_constraintEnd_toEndOf="parent"
           app:layout_constraintStart_toStartOf="parent"
           app:layout_constraintTop_toBottomOf="@id/admin_auth_heading_textview" />