<Styles xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <Style Selector="TextBlock.h1">
        <Setter Property="FontSize" Value="24"/>
        <Setter Property="FontWeight" Value="Light"/>
    </Style>
    <Style Selector="TextBlock.h2">
        <Setter Property="FontSize" Value="20"/>
    </Style>
    <Style Selector="TextBlock.h3">
        <Setter Property="FontSize" Value="16"/>
    </Style>
</Styles>