launch(args);
}
@Override
public void start(Stage primaryStage) {
InlineCssTextArea area = new InlineCssTextArea("Hello popup!");
area.setWrapText(true);
Popup popup = new Popup();
popup.getContent().add(new Button("I am a popup button!"));
area.setPopupWindow(popup);
area.setPopupAlignment(PopupAlignment.SELECTION_BOTTOM_CENTER);
area.setPopupAnchorOffset(new Point2D(4, 4));
primaryStage.setScene(new Scene(new StackPane(area), 200, 200));
primaryStage.setTitle("Popup Demo");
primaryStage.show();
popup.show(primaryStage);