Fix slide padding

TangoAgency#51

Author: DreierF

material-intro-screen/src/main/res/layout/fragment_slide.xml

@@ -5,24 +5,24 @@
     android:id="@+id/slide_background"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:layout_marginLeft="16dp"
-    android:layout_marginRight="16dp"
-    android:layout_marginTop="16dp"
     android:background="@android:color/transparent"
     android:clipToPadding="false"
     android:fitsSystemWindows="false"
     android:gravity="center"
     android:orientation="vertical"
+    android:paddingLeft="16dp"
+    android:paddingTop="16dp"
+    android:paddingRight="16dp"
     android:paddingBottom="164dp">
 
     <ImageView
         android:id="@+id/image_slide"
         android:layout_width="wrap_content"
         android:layout_height="0dp"
-        android:layout_marginBottom="8dp"
         android:layout_marginLeft="48dp"
-        android:layout_marginRight="48dp"
         android:layout_marginTop="48dp"
+        android:layout_marginRight="48dp"
+        android:layout_marginBottom="8dp"
         android:layout_weight="1"
         android:adjustViewBounds="true"
         android:gravity="center"