<Styles xmlns="https://github.com/avaloniaui" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <Design.PreviewWith>
        <Border Padding="20">
            <TextBox Classes="Primary" />
        </Border>
    </Design.PreviewWith>

    <Style Selector="TextBox.Primary">
        <Setter Property="Height" Value="32" />
    </Style>

</Styles>
