Border of Silverlight

Modify on MainPage.xaml of last article of "Silverlight 5/Visual Basic: Add event handling code" to add borders on the TextBlock and Button.

    <Grid x:Name="LayoutRoot" Background="White">
    <StackPanel>
        <Border Margin="5" Background="Yellow">
            <TextBlock x:Name="textBlock" Text="Hello!"></TextBlock>
        </Border>
        <Border Margin="20" Background="LightBlue" BorderBrush="SteelBlue" BorderThickness="5" CornerRadius="10">
            <Button x:Name="button1" Click="button1_Click" Content="Click Me"></Button>
        </Border>
    </StackPanel>
</Grid>