diff --git a/Fluent.Ribbon.Showcase/TestContent.xaml b/Fluent.Ribbon.Showcase/TestContent.xaml
index 694761b5c..086b1e646 100644
--- a/Fluent.Ribbon.Showcase/TestContent.xaml
+++ b/Fluent.Ribbon.Showcase/TestContent.xaml
@@ -292,6 +292,7 @@
                                          Icon="pack://application:,,,/Fluent.Ribbon.Showcase;component/Images/BlueLarge.png">
 
                             <Fluent:MenuItem Header="Standard format"
+                                             Description="Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Maecenas porttitor congue massa. Fusce posuere, magna sed pulvinar ultricies, purus lectus malesuada libero, sit amet commodo magna eros quis urna."
                                              Icon="pack://application:,,,/Fluent.Ribbon.Showcase;component/Images/BlueLarge.png" />
 
                             <Fluent:MenuItem Header="Export"
diff --git a/Fluent.Ribbon/Themes/Office2010/Controls/ApplicationMenuItem.xaml b/Fluent.Ribbon/Themes/Office2010/Controls/ApplicationMenuItem.xaml
index 58ef32165..b21ea9221 100644
--- a/Fluent.Ribbon/Themes/Office2010/Controls/ApplicationMenuItem.xaml
+++ b/Fluent.Ribbon/Themes/Office2010/Controls/ApplicationMenuItem.xaml
@@ -5,11 +5,6 @@
                     xmlns:Fluent="clr-namespace:Fluent"
                     xmlns:Converters="clr-namespace:Fluent.Converters"
                     mc:Ignorable="d">
-    <ResourceDictionary.MergedDictionaries>
-        <ResourceDictionary Source="pack://application:,,,/Fluent;component\Themes\Office2010\Controls\RibbonScrollViewer.xaml" />
-        <ResourceDictionary Source="pack://application:,,,/Fluent;component\Themes\Office2010\Controls\MenuItem.xaml" />
-    </ResourceDictionary.MergedDictionaries>
-
     <Converters:ApplicationMenuRightContentExtractorConverter x:Key="ApplicationMenuRightContentExtractorConvert" />
 
     <!-- Second level-->
@@ -25,7 +20,8 @@
             </ResourceDictionary>
         </ControlTemplate.Resources>
         <Grid Width="Auto"
-              Height="53"
+              MinHeight="53"
+              Height="Auto"
               Background="#00000000">
             <Grid.ColumnDefinitions>
                 <ColumnDefinition Width="44" />
@@ -176,7 +172,8 @@
             </ResourceDictionary>
         </ControlTemplate.Resources>
         <Grid Width="Auto"
-              Height="53"
+              MinHeight="53"
+              Height="Auto"
               Background="#00000000">
             <Grid.ColumnDefinitions>
                 <ColumnDefinition Width="44" />
@@ -436,6 +433,7 @@
                                               Margin="1"
                                               SnapsToDevicePixels="True">
                                     <StackPanel x:Name="PART_MenuPanel"
+                                                MaxWidth="{Binding ActualWidth, ElementName=PART_ScrollViewer}"
                                                 Orientation="Vertical"
                                                 IsItemsHost="True"
                                                 KeyboardNavigation.DirectionalNavigation="Contained" />
@@ -515,7 +513,8 @@
             </ResourceDictionary>
         </ControlTemplate.Resources>
         <Grid Width="Auto"
-              Height="53"
+              MinHeight="53"
+              Height="Auto"
               Background="#00000000">
             <Grid.ColumnDefinitions>
                 <ColumnDefinition Width="44" />
@@ -704,6 +703,7 @@
                                               Style="{DynamicResource MenuScrollViewer}"
                                               SnapsToDevicePixels="True">
                                     <StackPanel x:Name="PART_MenuPanel"
+                                                MaxWidth="{Binding ActualWidth, ElementName=PART_ScrollViewer}"
                                                 Orientation="Vertical"
                                                 IsItemsHost="True"
                                                 KeyboardNavigation.DirectionalNavigation="Contained" />
@@ -1221,6 +1221,7 @@
                                               Margin="1"
                                               SnapsToDevicePixels="True">
                                     <StackPanel x:Name="PART_MenuPanel"
+                                                MaxWidth="{Binding ActualWidth, ElementName=PART_ScrollViewer}"
                                                 Orientation="Vertical"
                                                 IsItemsHost="True"
                                                 KeyboardNavigation.DirectionalNavigation="Contained" />
@@ -1586,6 +1587,7 @@
                                               Style="{DynamicResource MenuScrollViewer}"
                                               SnapsToDevicePixels="True">
                                     <StackPanel x:Name="PART_MenuPanel"
+                                                MaxWidth="{Binding ActualWidth, ElementName=PART_ScrollViewer}"
                                                 Orientation="Vertical"
                                                 IsItemsHost="True"
                                                 KeyboardNavigation.DirectionalNavigation="Contained" />
diff --git a/Fluent.Ribbon/Themes/Windows8/Controls/ApplicationMenuItem.xaml b/Fluent.Ribbon/Themes/Windows8/Controls/ApplicationMenuItem.xaml
index f35ccf6dc..7e66aff3b 100644
--- a/Fluent.Ribbon/Themes/Windows8/Controls/ApplicationMenuItem.xaml
+++ b/Fluent.Ribbon/Themes/Windows8/Controls/ApplicationMenuItem.xaml
@@ -5,11 +5,6 @@
                     xmlns:Fluent="clr-namespace:Fluent"
                     xmlns:Converters="clr-namespace:Fluent.Converters"
                     mc:Ignorable="d">
-    <ResourceDictionary.MergedDictionaries>
-		<ResourceDictionary Source="pack://application:,,,/Fluent;component\Themes\Windows8\Controls\RibbonScrollViewer.xaml" />
-		<ResourceDictionary Source="pack://application:,,,/Fluent;component\Themes\Windows8\Controls\MenuItem.xaml" />
-    </ResourceDictionary.MergedDictionaries>
-
     <Converters:ApplicationMenuRightContentExtractorConverter x:Key="ApplicationMenuRightContentExtractorConvert" />
 
     <!-- Second level-->
@@ -25,7 +20,8 @@
             </ResourceDictionary>
         </ControlTemplate.Resources>
         <Grid Width="Auto"
-              Height="53"
+              MinHeight="53"
+              Height="Auto"
               Background="#00000000">
             <Grid.ColumnDefinitions>
                 <ColumnDefinition Width="44" />
@@ -44,6 +40,7 @@
                     Grid.ColumnSpan="3">
             </Border>
             <TextBlock x:Name="textBlock_Copy"
+                       FontWeight="Bold"
                        Text="{TemplateBinding Header}"
                        Width="Auto"
                        Height="Auto"
@@ -54,6 +51,7 @@
                        Visibility="Hidden"
                        HorizontalAlignment="Left" />
             <TextBlock x:Name="textBlock"
+                       FontWeight="Bold"
                        Text="{TemplateBinding Header}"
                        Width="Auto"
                        Height="Auto"
@@ -169,7 +167,8 @@
             </ResourceDictionary>
         </ControlTemplate.Resources>
         <Grid Width="Auto"
-              Height="53"
+              MinHeight="53"
+              Height="Auto"
               Background="#00000000">
             <Grid.ColumnDefinitions>
                 <ColumnDefinition Width="44" />
@@ -188,6 +187,7 @@
                     Grid.ColumnSpan="3">
             </Border>
             <TextBlock x:Name="textBlock_Copy"
+                       FontWeight="Bold"
                        Text="{TemplateBinding Header}"
                        Width="Auto"
                        Height="Auto"
@@ -198,6 +198,7 @@
                        Visibility="Hidden"
                        HorizontalAlignment="Left" />
             <TextBlock x:Name="textBlock"
+                       FontWeight="Bold"
                        Text="{TemplateBinding Header}"
                        Width="Auto"
                        Height="Auto"
@@ -421,6 +422,7 @@
                                               Margin="1"
                                               SnapsToDevicePixels="True">
                                     <StackPanel x:Name="PART_MenuPanel"
+                                                MaxWidth="{Binding ActualWidth, ElementName=PART_ScrollViewer}"
                                                 Orientation="Vertical"
                                                 IsItemsHost="True"
                                                 KeyboardNavigation.DirectionalNavigation="Contained" />
@@ -500,7 +502,8 @@
             </ResourceDictionary>
         </ControlTemplate.Resources>
         <Grid Width="Auto"
-              Height="53"
+              MinHeight="53"
+              Height="Auto"
               Background="#00000000">
             <Grid.ColumnDefinitions>
                 <ColumnDefinition Width="44" />
@@ -551,6 +554,7 @@
             </Grid>
 
             <TextBlock x:Name="textBlock_Copy"
+                       FontWeight="Bold"
                        Text="{TemplateBinding Header}"
                        Width="Auto"
                        Height="Auto"
@@ -561,6 +565,7 @@
                        Visibility="Hidden"
                        HorizontalAlignment="Left" />
             <TextBlock x:Name="textBlock"
+                       FontWeight="Bold"
                        Text="{TemplateBinding Header}"
                        Width="Auto"
                        Height="Auto"
@@ -677,6 +682,7 @@
                                               Style="{DynamicResource MenuScrollViewer}"
                                               SnapsToDevicePixels="True">
                                     <StackPanel x:Name="PART_MenuPanel"
+                                                MaxWidth="{Binding ActualWidth, ElementName=PART_ScrollViewer}"
                                                 Orientation="Vertical"
                                                 IsItemsHost="True"
                                                 KeyboardNavigation.DirectionalNavigation="Contained" />
@@ -1183,6 +1189,7 @@
                                               Margin="1"
                                               SnapsToDevicePixels="True">
                                     <StackPanel x:Name="PART_MenuPanel"
+                                                MaxWidth="{Binding ActualWidth, ElementName=PART_ScrollViewer}"
                                                 Orientation="Vertical"
                                                 IsItemsHost="True"
                                                 KeyboardNavigation.DirectionalNavigation="Contained" />
@@ -1538,6 +1545,7 @@
                                               Style="{DynamicResource MenuScrollViewer}"
                                               SnapsToDevicePixels="True">
                                     <StackPanel x:Name="PART_MenuPanel"
+                                                MaxWidth="{Binding ActualWidth, ElementName=PART_ScrollViewer}"
                                                 Orientation="Vertical"
                                                 IsItemsHost="True"
                                                 KeyboardNavigation.DirectionalNavigation="Contained" />