UI Controls Silverlight

    xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' 
    xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'
    xmlns:d='http://schemas.microsoft.com/expression/blend/2008' 
    xmlns:mc='http://schemas.openxmlformats.org/markup-compatibility/2006' 
    mc:Ignorable='d' 
    d:DesignWidth='640' 
    d:DesignHeight='480'> 
             Height="50"
        Width="150"
         FontFamily="Trebuchet"
         FontSize="24"
        FontWeight="Bold"
        FontStyle="Italic"
        Foreground="Red"
        Background="Blue"/>