import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ChoiceBox;
import javafx.scene.control.TextField;
import javafx.scene.control.Tooltip;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class Test extends Application {

    @Override
    public void start(Stage primaryStage) {
        // Create controls
        ChoiceBox<String> choiceBox = new ChoiceBox<>(FXCollections.observableArrayList("Option 1", "Option 2", "Option 3"));
        TextField textField = new TextField();
        Button button = new Button	("Click Me");
        button.setTooltip(new Tooltip("This is a tooltip for the button."));

        // Create layout
        VBox root = new VBox(10);
        root.getChildren().addAll(choiceBox, textField, button);

        // Create scene
        Scene scene = new Scene(root, 300, 200);

        // Apply CSS
        scene.getStylesheets().add(getClass().getResource("styles.css").toExternalForm());

        // Set stage properties
        primaryStage.setTitle("JavaFX Controls with CSS");
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}