diff --git a/src/Ursa.Themes.Semi/Styles/UrsaWindow.axaml b/src/Ursa.Themes.Semi/Styles/UrsaWindow.axaml
new file mode 100644
index 0000000..0b2e69b
--- /dev/null
+++ b/src/Ursa.Themes.Semi/Styles/UrsaWindow.axaml
@@ -0,0 +1,18 @@
+<Styles xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:u="https://irihi.tech/ursa">
+    <Design.PreviewWith>
+        <Border Padding="20">
+            <!-- Add Controls for Previewer Here -->
+        </Border>
+    </Design.PreviewWith>
+
+    <Style Selector=":is(u|UrsaWindow)[ExtendClientAreaToDecorationsHint=True] u|WindowNotificationManager">
+        <Style Selector="^:topright">
+            <Setter Property="Margin" Value="0 36 0 0"></Setter>
+        </Style>
+    </Style>
+    <Style Selector=":is(u|UrsaWindow)[ExtendClientAreaToDecorationsHint=True] u|WindowToastManager">
+        <Setter Property="Margin" Value="0 36 0 0"></Setter>
+    </Style>
+</Styles>
diff --git a/src/Ursa.Themes.Semi/Styles/_index.axaml b/src/Ursa.Themes.Semi/Styles/_index.axaml
index e17a4a3..bc7b89f 100644
--- a/src/Ursa.Themes.Semi/Styles/_index.axaml
+++ b/src/Ursa.Themes.Semi/Styles/_index.axaml
@@ -11,5 +11,6 @@
     <StyleInclude Source="ToolBar.axaml"/>
     <StyleInclude Source="TimeBox.axaml"/>
     <StyleInclude Source="UrsaView.axaml" />
+    <StyleInclude Source="UrsaWindow.axaml" />
     <!--  Add Styles Here  -->
 </Styles>