diff --git a/app/build.gradle b/app/build.gradle
index a690a9add..ad3404b9f 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -93,7 +93,9 @@ dependencies {
     debugImplementation "com.squareup.leakcanary:leakcanary-android:$leakCanaryLibVersion"
     releaseImplementation "com.squareup.leakcanary:leakcanary-android-no-op:$leakCanaryLibVersion"
 
+
     implementation "com.squareup.okhttp3:okhttp:$okHttpLibVersion"
     debugImplementation "com.facebook.stetho:stetho-okhttp3:$stethoLibVersion"
     implementation 'com.android.support.constraint:constraint-layout:1.1.2'
+    implementation 'com.android.support:cardview-v7:27.1.1'
 }
diff --git a/app/src/main/res/layout/dialog_contentsettingtab.xml b/app/src/main/res/layout/dialog_contentsettingtab.xml
index 947a5bdf6..6fd6e2519 100644
--- a/app/src/main/res/layout/dialog_contentsettingtab.xml
+++ b/app/src/main/res/layout/dialog_contentsettingtab.xml
@@ -1,21 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/layout"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
+    android:layout_marginTop="1dp"
     android:orientation="horizontal">
 
     <TextView
         android:id="@+id/tabName"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
+        android:layout_alignParentEnd="true"
         android:layout_alignParentLeft="true"
         android:layout_alignParentStart="true"
-        android:layout_alignParentEnd="true"
         android:layout_centerVertical="true"
         android:paddingLeft="3dp"
         android:paddingStart="3dp"
         android:textAppearance="?android:attr/textAppearanceListItem"
         android:textSize="24sp" />
 
-</RelativeLayout>
\ No newline at end of file
+</android.support.v7.widget.CardView>
\ No newline at end of file