diff --git a/src/Nonemm.App/App.axaml b/src/Nonemm.App/App.axaml
index 6b52ba5..af08798 100644
--- a/src/Nonemm.App/App.axaml
+++ b/src/Nonemm.App/App.axaml
@@ -27,6 +27,12 @@
             <Setter Property="MinHeight" Value="26" />
             <Setter Property="Padding" Value="10,0" />
         </Style>
+        <Style Selector="TabItem:selected">
+            <Setter Property="FontWeight" Value="SemiBold" />
+        </Style>
+        <Style Selector="TabItem /template/ Rectangle#PART_SelectedPipe">
+            <Setter Property="Height" Value="3" />
+        </Style>
         <Style Selector="Menu">
             <Setter Property="Background" Value="{DynamicResource FormBackground}" />
         </Style>