<UserControl x:Class="WpfApplication1.Presentation.HelloWorldView"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             mc:Ignorable="d" 
             d:DesignHeight="300" d:DesignWidth="300">
    
    <Grid>
        
        <Button Content="Start" HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top" Width="36"
                Command="{Binding Path=OpenStartScreen}"/>
        
        <Label Content="Hello World!" HorizontalAlignment="Left" Margin="10,35,0,0" VerticalAlignment="Top"/>

    </Grid>
    
</UserControl>