diff --git a/app/src/main/res/layout/activity_login.xml b/app/src/main/res/layout/activity_login.xml
index 96a08ff..cf99e6c 100644
--- a/app/src/main/res/layout/activity_login.xml
+++ b/app/src/main/res/layout/activity_login.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:card_view="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
@@ -12,86 +12,103 @@
 
     <!--下の文字-->
 
-    <androidx.cardview.widget.CardView
-        android:layout_width="match_parent"
+    <LinearLayout
+        android:id="@+id/linearLayout"
+        android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_margin="30dp"
-        android:background="@drawable/custom_edittext"
-        app:cardCornerRadius="30dp"
-        app:cardElevation="20dp">
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.0"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.503">
 
-        <LinearLayout
-            android:layout_width="match_parent"
+        <androidx.cardview.widget.CardView
+            android:id="@+id/cardView2"
+            android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_gravity="center_horizontal"
-            android:orientation="vertical"
-            android:padding="40dp"> <!--24やった-->
+            android:layout_margin="30dp"
+            android:background="@drawable/custom_edittext"
+            app:cardCornerRadius="30dp"
+            app:cardElevation="20dp"
+            tools:layout_editor_absoluteX="30dp">
 
-
-            <TextView
-                android:id="@+id/loginText"
-                android:layout_width="match_parent"
+            <LinearLayout
+                android:layout_width="376dp"
                 android:layout_height="wrap_content"
-                android:text="Login"
-                android:textAlignment="center"
-                android:textColor="#00BCD4"
-                android:textSize="36sp"
-                android:textStyle="bold" />
-
-            <EditText
-                android:id="@+id/username"
-                android:layout_width="match_parent"
-                android:layout_height="50dp"
-                android:layout_marginTop="40dp"
-                android:drawableLeft="@drawable/baseline_face_24"
-                android:drawablePadding="8dp"
-                android:hint="Username"
-                android:padding="8dp"
-                android:textColor="@color/black"
-                android:textColorHighlight="@color/cardview_dark_background" />
-
-            <EditText
-                android:id="@+id/password"
-                android:layout_width="match_parent"
-                android:layout_height="50dp"
-                android:layout_marginTop="20dp"
-                android:drawableLeft="@android:drawable/ic_secure"
-                android:drawablePadding="8dp"
-                android:hint=" Password"
-                android:inputType="textPassword"
-                android:padding="13dp"
-                android:textColor="@color/black"
-                android:textColorHighlight="@color/cardview_dark_background" />
-
-            <!--パスワード-->
-
-            <Button
-                android:id="@+id/loginButton"
-                android:layout_width="match_parent"
-                android:layout_height="60dp"
-                android:layout_marginTop="30dp"
-                android:backgroundTint="#00BCD4"
-                android:text="Login"
-                android:textSize="18sp"
-                app:cornerRadius="20dp" />
-
-            <!--Loginテキスト-->
+                android:layout_gravity="center_horizontal"
+                android:orientation="vertical"
+                android:padding="40dp"> <!--24やった-->
 
 
-        </LinearLayout>
+                <Button
+                    android:id="@+id/loginButton"
+                    android:layout_width="match_parent"
+                    android:layout_height="60dp"
+                    android:layout_marginTop="30dp"
+                    android:backgroundTint="#00BCD4"
+                    android:text="Login"
+                    android:textSize="18sp"
+                    app:cornerRadius="20dp" />
 
-    </androidx.cardview.widget.CardView>
+                <EditText
+                    android:id="@+id/password"
+                    android:layout_width="match_parent"
+                    android:layout_height="50dp"
+                    android:layout_marginTop="20dp"
+                    android:drawableLeft="@android:drawable/ic_secure"
+                    android:drawablePadding="8dp"
+                    android:hint=" Password"
+                    android:inputType="textPassword"
+                    android:padding="13dp"
+                    android:textColor="@color/black"
+                    android:textColorHighlight="@color/cardview_dark_background" />
 
+                <EditText
+                    android:id="@+id/username"
+                    android:layout_width="match_parent"
+                    android:layout_height="50dp"
+                    android:layout_marginTop="40dp"
+                    android:drawableLeft="@drawable/baseline_face_24"
+                    android:drawablePadding="8dp"
+                    android:hint="Username"
+                    android:padding="8dp"
+                    android:textColor="@color/black"
+                    android:textColorHighlight="@color/cardview_dark_background" />
+
+                <TextView
+                    android:id="@+id/loginText"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="Login"
+                    android:textAlignment="center"
+                    android:textColor="#00BCD4"
+                    android:textSize="36sp"
+                    android:textStyle="bold" />
+
+                <!--パスワード-->
+
+                <!--Loginテキスト-->
+
+
+            </LinearLayout>
+
+        </androidx.cardview.widget.CardView>
+    </LinearLayout>
 
     <Button
         android:id="@+id/newAccount"
-        android:layout_width="match_parent"
+        android:layout_width="300dp"
         android:layout_height="58dp"
-        android:layout_marginTop="30dp"
+        android:layout_marginBottom="88dp"
         android:backgroundTint="#00BCD4"
         android:text="新規登録はこちら"
         android:textSize="18sp"
-        app:cornerRadius="20dp" />
+        app:cornerRadius="20dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/linearLayout" />
 
 
-</LinearLayout>
\ No newline at end of file
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file