Update Styles.Menu.xaml

Author: yanjinhuagood

src/WPFDevelopers.Shared/Styles/Styles.Menu.xaml

@@ -21,7 +21,11 @@
         <Setter Property="Template">
             <Setter.Value>
                 <ControlTemplate TargetType="{x:Type Menu}">
-                    <Border Background="{TemplateBinding Background}" SnapsToDevicePixels="True">
+                    <Border
+                        Width="{TemplateBinding Width}"
+                        Height="{TemplateBinding Height}"
+                        Background="{TemplateBinding Background}"
+                        SnapsToDevicePixels="True">
                         <ItemsPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
                     </Border>
                 </ControlTemplate>