<Page xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'>
    <Grid>
    <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
	    <RowDefinition Height="Auto"/>
        </Grid.RowDefinitions>
        <TextBlock Margin = "0, 15, 0, 25" HorizontalAlignment="Center" FontSize="30">Hello world!</TextBlock>
    </Grid>
</Page>