diff --git a/app/src/main/res/layout/fragment_authentication.xml b/app/src/main/res/layout/fragment_authentication.xml
index 6eeb3e0..591e5d3 100644
--- a/app/src/main/res/layout/fragment_authentication.xml
+++ b/app/src/main/res/layout/fragment_authentication.xml
@@ -11,10 +11,10 @@
 		style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
 		android:layout_width="0dp"
 		android:layout_height="wrap_content"
-		android:layout_marginStart="8dp"
-		android:layout_marginTop="8dp"
-		android:layout_marginEnd="8dp"
-		android:layout_marginBottom="8dp"
+		android:layout_marginStart="@dimen/margin_small"
+		android:layout_marginTop="@dimen/margin_small"
+		android:layout_marginEnd="@dimen/margin_small"
+		android:layout_marginBottom="@dimen/margin_small"
 		android:hint="@string/fragment_authentication_input_hint_email"
 		app:layout_constraintBottom_toTopOf="@+id/password_input_layout"
 		app:layout_constraintEnd_toEndOf="parent"
@@ -35,10 +35,10 @@
 		style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
 		android:layout_width="0dp"
 		android:layout_height="wrap_content"
-		android:layout_marginStart="8dp"
-		android:layout_marginTop="8dp"
-		android:layout_marginEnd="8dp"
-		android:layout_marginBottom="8dp"
+		android:layout_marginStart="@dimen/margin_small"
+		android:layout_marginTop="@dimen/margin_small"
+		android:layout_marginEnd="@dimen/margin_small"
+		android:layout_marginBottom="@dimen/margin_small"
 		android:hint="@string/fragment_authentication_input_hint_password"
 		app:layout_constraintBottom_toTopOf="@+id/url_input_layout"
 		app:layout_constraintEnd_toEndOf="parent"
@@ -57,10 +57,10 @@
 		style="@style/Widget.MaterialComponents.TextInputLayout.OutlinedBox"
 		android:layout_width="0dp"
 		android:layout_height="wrap_content"
-		android:layout_marginStart="8dp"
-		android:layout_marginTop="8dp"
-		android:layout_marginEnd="8dp"
-		android:layout_marginBottom="8dp"
+		android:layout_marginStart="@dimen/margin_small"
+		android:layout_marginTop="@dimen/margin_small"
+		android:layout_marginEnd="@dimen/margin_small"
+		android:layout_marginBottom="@dimen/margin_small"
 		android:hint="@string/fragment_authnetication_input_hint_url"
 		app:layout_constraintBottom_toTopOf="@+id/button"
 		app:layout_constraintEnd_toEndOf="parent"
@@ -78,10 +78,10 @@
 		android:id="@+id/button"
 		android:layout_width="wrap_content"
 		android:layout_height="wrap_content"
-		android:layout_marginStart="8dp"
-		android:layout_marginTop="8dp"
-		android:layout_marginEnd="8dp"
-		android:layout_marginBottom="8dp"
+		android:layout_marginStart="@dimen/margin_small"
+		android:layout_marginTop="@dimen/margin_small"
+		android:layout_marginEnd="@dimen/margin_small"
+		android:layout_marginBottom="@dimen/margin_small"
 		android:text="@string/fragment_authentication_button_login"
 		app:layout_constraintBottom_toBottomOf="parent"
 		app:layout_constraintEnd_toEndOf="parent"
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
new file mode 100644
index 0000000..1f2708e
--- /dev/null
+++ b/app/src/main/res/values/dimens.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+	<dimen name="margin_small">8dp</dimen>
+</resources>
\ No newline at end of file