<Window x:Class="Content.SimpleBorder" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="SimpleBorder" Height="300" Width="300"> <Border Margin="5" Padding="5" Background="LightYellow" BorderBrush="SteelBlue" BorderThickness="3,5,3,5" CornerRadius="3" VerticalAlignment="Top"> <StackPanel> <Button Margin="3">One</Button> <Button Margin="3">Two</Button> <Button Margin="3">Three</Button> </StackPanel> </Border> </Window>