diff --git a/app/src/main/java/org/toop/app/menu/MainMenu.java b/app/src/main/java/org/toop/app/menu/MainMenu.java
index 19d8040..b8d4ca2 100644
--- a/app/src/main/java/org/toop/app/menu/MainMenu.java
+++ b/app/src/main/java/org/toop/app/menu/MainMenu.java
@@ -4,28 +4,39 @@ import javafx.geometry.Pos;
 import javafx.scene.control.Button;
 import javafx.scene.image.ImageView;
 import javafx.scene.layout.*;
+import org.toop.framework.asset.AssetManager;
+import org.toop.framework.asset.resources.CssAsset;
+import org.toop.framework.asset.resources.ImageAsset;
 
 public final class MainMenu extends Menu {
 	public MainMenu() {
-		final ImageView background = new ImageView();
-
 		final Button tictactoe = createButton("Tic Tac Toe", () -> {});
 		final Button reversi = createButton("Reversi", () -> {});
 		final Button sudoku = createButton("Sudoku", () -> {});
 		final Button battleship = createButton("Battleship", () -> {});
 		final Button other = createButton("Other", () -> {});
 
-		final VBox gamesBox = new VBox(tictactoe, reversi, sudoku, background, other);
+		final VBox gamesBox = new VBox(tictactoe, reversi, sudoku, battleship, other);
 		gamesBox.setAlignment(Pos.TOP_CENTER);
 
 		final Button credits = createButton("Credits", () -> {});
 		final Button options = createButton("Options", () -> {});
 		final Button quit = createButton("Quit", () -> {});
 
-		final VBox creditsBox = new VBox(10, credits, options, quit);
+		final VBox creditsBox = new VBox(credits, options, quit);
 		creditsBox.setAlignment(Pos.BOTTOM_CENTER);
 
-		//pane = new StackPane(background, grid);
-		pane.getStylesheets().add(getClass().getResource("/style/main.css").toExternalForm());
+		VBox grid = new VBox(20, gamesBox, creditsBox);
+		grid.setAlignment(Pos.CENTER);
+
+		ImageAsset backgroundImage = (ImageAsset) AssetManager.getByName("background.jpg").getResource();
+		ImageView background = new ImageView(backgroundImage.getImage());
+		background.setPreserveRatio(false);
+		background.fitWidthProperty().bind(grid.widthProperty());
+		background.fitHeightProperty().bind(grid.heightProperty());
+
+		pane = new StackPane(background, grid);
+		CssAsset css = (CssAsset) AssetManager.getByName("main.css").getResource();
+		pane.getStylesheets().add(css.getUrl());
 	}
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/toop/app/menu/QuitMenu.java b/app/src/main/java/org/toop/app/menu/QuitMenu.java
index fe359da..6d2bf5e 100644
--- a/app/src/main/java/org/toop/app/menu/QuitMenu.java
+++ b/app/src/main/java/org/toop/app/menu/QuitMenu.java
@@ -8,6 +8,8 @@ import javafx.scene.layout.StackPane;
 import javafx.scene.layout.VBox;
 import javafx.scene.text.Text;
 import org.toop.app.App;
+import org.toop.framework.asset.AssetManager;
+import org.toop.framework.asset.resources.CssAsset;
 
 public final class QuitMenu extends Menu {
 	public QuitMenu() {
@@ -43,6 +45,7 @@ public final class QuitMenu extends Menu {
 		StackPane.setAlignment(box, Pos.CENTER);
 
 		pane = modalContainer;
-		pane.getStylesheets().add(getClass().getResource("/style/quit.css").toExternalForm());
+		CssAsset css = (CssAsset) AssetManager.getByName("quit.css").getResource();
+		pane.getStylesheets().add(css.getUrl());
 	}
 }
\ No newline at end of file
diff --git a/app/src/main/resources/image/game/battleship.png b/app/src/main/resources/assets/image/battleship.png
similarity index 100%
rename from app/src/main/resources/image/game/battleship.png
rename to app/src/main/resources/assets/image/battleship.png
diff --git a/app/src/main/resources/image/game/other.png b/app/src/main/resources/assets/image/other.png
similarity index 100%
rename from app/src/main/resources/image/game/other.png
rename to app/src/main/resources/assets/image/other.png
diff --git a/app/src/main/resources/image/game/reversi.png b/app/src/main/resources/assets/image/reversi.png
similarity index 100%
rename from app/src/main/resources/image/game/reversi.png
rename to app/src/main/resources/assets/image/reversi.png
diff --git a/app/src/main/resources/image/game/sudoku.png b/app/src/main/resources/assets/image/sudoku.png
similarity index 100%
rename from app/src/main/resources/image/game/sudoku.png
rename to app/src/main/resources/assets/image/sudoku.png
diff --git a/app/src/main/resources/image/game/tictactoe.png b/app/src/main/resources/assets/image/tictactoe.png
similarity index 100%
rename from app/src/main/resources/image/game/tictactoe.png
rename to app/src/main/resources/assets/image/tictactoe.png
diff --git a/app/src/main/resources/style/main.css b/app/src/main/resources/assets/style/main.css
similarity index 100%
rename from app/src/main/resources/style/main.css
rename to app/src/main/resources/assets/style/main.css
diff --git a/app/src/main/resources/style/quit.css b/app/src/main/resources/assets/style/quit.css
similarity index 100%
rename from app/src/main/resources/style/quit.css
rename to app/src/main/resources/assets/style/quit.css
diff --git a/app/src/main/resources/style/style.css b/app/src/main/resources/assets/style/style.css
similarity index 100%
rename from app/src/main/resources/style/style.css
rename to app/src/main/resources/assets/style/style.css
diff --git a/framework/src/main/java/org/toop/framework/asset/resources/CssAsset.java b/framework/src/main/java/org/toop/framework/asset/resources/CssAsset.java
new file mode 100644
index 0000000..367fe80
--- /dev/null
+++ b/framework/src/main/java/org/toop/framework/asset/resources/CssAsset.java
@@ -0,0 +1,17 @@
+package org.toop.framework.asset.resources;
+
+import java.io.File;
+
+@FileExtension({"css"})
+public class CssAsset extends BaseResource {
+    private final String url;
+
+    public CssAsset(File file) {
+        super(file);
+        this.url = file.toURI().toString();
+    }
+
+    public String getUrl() {
+        return url;
+    }
+}