import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.TextArea;
import javafx.stage.Stage;

public class Main extends Application {    
    public static void main(String[] args) {
        launch(args);        
    }    
    
    @Override
    public void start(final Stage stage) {        
        Group root = new Group();
        final Scene scene = new Scene(root);
        stage.setWidth(300);
        stage.setHeight(600);
        stage.setScene(scene);              
        
        TextArea ta = new TextArea();
        ta.setStyle("-fx-background-color: pink;");
        
        root.getChildren().add(ta);
        
        stage.show();
    }
}