diff --git a/.idea/MarsCodeWorkspaceAppSettings.xml b/.idea/MarsCodeWorkspaceAppSettings.xml
new file mode 100644
index 0000000..e1240d9
--- /dev/null
+++ b/.idea/MarsCodeWorkspaceAppSettings.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="com.codeverse.userSettings.MarscodeWorkspaceAppSettingsState">
+    <option name="CKGUserStarteByUser" value="true" />
+    <option name="chatAppRouterInfo" value="chat" />
+    <option name="ckgOperationStatus" value="SUCCESS" />
+    <option name="lastCKGNotifyTime" value="1753529087685" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index 17d7400..ff3ca2e 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
diff --git a/lesson1/build.gradle.kts b/lesson1/build.gradle.kts
index 7192b8b..82a81f0 100644
--- a/lesson1/build.gradle.kts
+++ b/lesson1/build.gradle.kts
@@ -21,5 +21,5 @@ kotlin {
 }
 
 application {
-    mainClass.set("com.msksbr.jfxLearn.MainKt")
+    mainClass.set("com.msksbr.jfxLearn.lesson1.MainKt")
 }
\ No newline at end of file
diff --git a/lesson1/src/main/kotlin/Main.kt b/lesson1/src/main/kotlin/Main.kt
index 620ac9c..7e04d06 100644
--- a/lesson1/src/main/kotlin/Main.kt
+++ b/lesson1/src/main/kotlin/Main.kt
@@ -13,13 +13,28 @@
  *       ...
  */
 
+package com.msksbr.jfxLearn.lesson1
+
 import javafx.application.Application
+import javafx.scene.Scene
 import javafx.stage.Stage
+import javafx.scene.control.Label
+import javafx.scene.layout.BorderPane
 
 // 1. create a class that extends javafx.application.application
 class MainApplication : Application() {
     // 2. override Application.start
     override fun start(stage: Stage) {
+
+        // Node
+        val label = Label("i am label")
+        // Parent
+        val pane = BorderPane(label)
+        // Scene
+        val scene = Scene(pane, 300.0, 300.0)
+
+        // 3. bind Scene to Stage
+        stage.scene = scene
         stage.title = "i am Stage"
         stage.show()
     }