<Window x:Class="WpfApplication1.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="WPF" Height="300" Width="300"> <UniformGrid> <UniformGrid.Resources> <Style TargetType="{x:Type TextBlock}"> <Setter Property="FontSize" Value="14" /> <Setter Property="HorizontalAlignment" Value="Center" /> <Setter Property="VerticalAlignment" Value="Center" /> </Style> </UniformGrid.Resources> <Border BorderBrush="Black" BorderThickness="4px, 4px, 0px, 0px" Margin="10"> <TextBlock Text="A half border" /> </Border> </UniformGrid> </Window>