<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 CornerRadius="0, 5, 30, 90" Background="LightGray" BorderBrush="LightGray" BorderThickness="2px, 5px, 2px, 5px" Margin="10"> <TextBlock Text="A wonky border" /> </Border> </UniformGrid> </Window>