MainWindow.xaml

<Window x:Class="SQLQuiz.MainWindow"
        x:Name="SQLQuiz"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:RDA4"
        mc:Ignorable="d"
        Loaded="RDA4Quiz_Loaded"
        Title="RDA4: Quiz" Height="450" Width="800">
    <Grid>
        <Frame x:Name="screenFrame" 
               Content="Frame" 
               HorizontalAlignment="Left" 
               Height="420" 
               VerticalAlignment="Top" 
               Width="794" 
               Margin="0,0,-0.4,0"
               NavigationUIVisibility="Hidden"/>

    </Grid>
</Window>