diff --git a/src/Nonemm.App/App.axaml b/src/Nonemm.App/App.axaml
index 4eb7fe3..6b52ba5 100644
--- a/src/Nonemm.App/App.axaml
+++ b/src/Nonemm.App/App.axaml
@@ -20,6 +20,13 @@
             <Setter Property="Background" Value="{DynamicResource FormBackground}" />
             <Setter Property="Foreground" Value="{DynamicResource FormForeground}" />
         </Style>
+        <!-- the Fluent tab header is 28 pt and 48 px tall -->
+        <Style Selector="TabItem">
+            <Setter Property="FontSize" Value="12" />
+            <Setter Property="Foreground" Value="{DynamicResource FormForeground}" />
+            <Setter Property="MinHeight" Value="26" />
+            <Setter Property="Padding" Value="10,0" />
+        </Style>
         <Style Selector="Menu">
             <Setter Property="Background" Value="{DynamicResource FormBackground}" />
         </Style>