Constrain layout

Author: iAmWillShepherd

app/src/main/res/layout/activity_main.xml

@@ -7,11 +7,17 @@
     tools:context=".MainActivity">
 
     <LinearLayout
-        android:layout_width="411dp"
-        android:layout_height="731dp"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_marginStart="8dp"
+        android:layout_marginTop="32dp"
+        android:layout_marginEnd="8dp"
+        android:layout_marginBottom="8dp"
         android:orientation="vertical"
-        app:layout_constraintTop_toTopOf="parent"
-        tools:layout_editor_absoluteX="1dp">
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent">
 
         <Button
             android:id="@+id/login"