diff --git a/src/main/resources/abacus.fxml b/src/main/resources/abacus.fxml
index 45f2b13..5e1d90f 100644
--- a/src/main/resources/abacus.fxml
+++ b/src/main/resources/abacus.fxml
@@ -1,14 +1,15 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
-<?import java.lang.*?>
-<?import java.util.*?>
-<?import javafx.scene.*?>
 <?import javafx.scene.control.*?>
 <?import javafx.scene.layout.*?>
 
-<AnchorPane xmlns="http://javafx.com/javafx"
+<BorderPane xmlns="http://javafx.com/javafx"
             xmlns:fx="http://javafx.com/fxml"
-            fx:controller="org.nwapw.abacus.fx.AbacusController"
-            prefHeight="400.0" prefWidth="600.0">
-
-</AnchorPane>
+            fx:controller="org.nwapw.abacus.fx.AbacusController">
+    <center>
+        <TabPane>
+            <Tab text="Calculator" closable="false"/>
+            <Tab text="Settings" closable="false"/>
+        </TabPane>
+    </center>
+</BorderPane>