03. column, row 설정

<Window x:Class="ModernDesign.MainWindow"
        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:ModernDesign"
        mc:Ignorable="d"
        Title="MainWindow" Height="600" Width="920"
        WindowStyle="None"
        ResizeMode="NoResize"
        Background="Transparent"
        AllowsTransparency="True">
    <Border Background="#272537" CornerRadius="20">
        <Grid>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="200"/>
                <ColumnDefinition/>

            </Grid.ColumnDefinitions>
            <Grid.RowDefinitions>
                <RowDefinition Height="75"/>
                <RowDefinition/>
            </Grid.RowDefinitions>

            <TextBlock Text="Elysian"
                   VerticalAlignment="Center"
                   HorizontalAlignment="Left"
                   Foreground="White"
                   FontSize="22"
                   Margin="20,0,0,0"/>
            <!--Row="1" 설정해서 이동함-->
            <StackPanel Grid.Row="1">
                <RadioButton Content="Home"
                             Height="50"
                             Foreground="White"
                             FontSize="14"/>
            </StackPanel>
        </Grid>
    </Border>
</Window>