diff --git a/app/src/main/res/layout/activity_login_screen.xml b/app/src/main/res/layout/activity_login_screen.xml
index 7f26930..a84789c 100644
--- a/app/src/main/res/layout/activity_login_screen.xml
+++ b/app/src/main/res/layout/activity_login_screen.xml
@@ -10,74 +10,77 @@
         android:id="@+id/textLoginEmail"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_marginStart="16dp"
-        android:layout_marginTop="130dp"
         android:text="メールアドレス"
+        app:layout_constraintBottom_toTopOf="@+id/editTextTextLoginEmail"
+        app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.817" />
 
     <Button
         android:id="@+id/buttonLoginLogin"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_marginStart="240dp"
-        android:layout_marginTop="400dp"
         android:onClick="onClickLogin"
         android:text="ログイン"
+        app:layout_constraintBottom_toTopOf="@+id/buttonRedoSignUp"
         app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.498"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+        app:layout_constraintTop_toBottomOf="@+id/editTextTextLoginPassword"
+        app:layout_constraintVertical_bias="0.562" />
 
     <EditText
         android:id="@+id/editTextTextLoginEmail"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_marginEnd="72dp"
         android:ems="10"
         android:inputType="textEmailAddress"
         android:text="d0@dummy.com"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.497"
+        app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.204" />
+        app:layout_constraintVertical_bias="0.243" />
 
     <EditText
         android:id="@+id/editTextTextLoginPassword"
         android:layout_width="210dp"
         android:layout_height="wrap_content"
-        android:layout_marginStart="100dp"
-        android:layout_marginEnd="50dp"
         android:ems="10"
         android:inputType="textPassword"
         android:text="nittalab"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHorizontal_bias="0.56"
+        app:layout_constraintHorizontal_bias="0.497"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.411" />
+        app:layout_constraintVertical_bias="0.421" />
 
     <TextView
         android:id="@+id/textLoginPassword"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_marginStart="40dp"
         android:text="パスワード"
-        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintBottom_toTopOf="@+id/editTextTextLoginPassword"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.498"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.41000003" />
+        app:layout_constraintVertical_bias="0.937" />
 
     <Button
         android:id="@+id/buttonRedoSignUp"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_marginStart="60dp"
         android:onClick="onClickSignUp"
         android:text="新規登録する"
         app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.498"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.585" />
+        app:layout_constraintVertical_bias="0.72" />
 
 </androidx.constraintlayout.widget.ConstraintLayout>
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