import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.TextField;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class App extends Application
{
    
    @Override
    public void start(Stage primaryStage) {
        var badTextField = new TextField("Some text");
        VBox root = new VBox(badTextField);
        root.setPadding(new Insets(15));
        Scene scene = new Scene(root, 300, 100);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

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