GTPCorrgir/notificacion.xaml

<Window x:Class="GTPCorrgir.notificacion" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Height="100" Width="300" Topmost="True"
        ShowInTaskbar="False" WindowStyle="None" AllowsTransparency="True" Background="Transparent">
    <Border CornerRadius="10" Background="#AAF0F0F0">
        <StackPanel>
            <TextBlock x:Name="TitleText" FontSize="16" FontWeight="Bold" Margin="10" />
            <TextBlock x:Name="MessageText" FontSize="14" Margin="10" />
            <Button Content="Cerrar" Width="75" Height="20" Margin="0" Click="CloseButton_Click"
                    HorizontalAlignment="Right" />
        </StackPanel>
    </Border>
</Window>