<UserControl x:Class="Test.UCTest"
             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" 
             xmlns:local="clr-namespace:Test"
             mc:Ignorable="d" 
             d:DesignHeight="450" d:DesignWidth="800">
    <ListBoxItem>
        <Border BorderThickness="2" BorderBrush="PowderBlue" CornerRadius="4" Padding="4">
            <Grid>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="Auto"/>
                    <ColumnDefinition/>
                </Grid.ColumnDefinitions>
                <Grid.RowDefinitions>
                    <RowDefinition Height="2"/>
                    <RowDefinition/>
                    <RowDefinition/>
                </Grid.RowDefinitions>
                <TextBlock Grid.Column="1" Grid.Row="1" Text="Requin Dormeur Mexicain" FontWeight="DemiBold"/>
                <TextBlock Grid.Column="1" Grid.Row="2" Text="Heterodontus mexicanus" FontWeight="Thin"/>
            </Grid>
        </Border>
    </ListBoxItem>
</UserControl>
