final StackPane rootPane = new StackPane();

        Text text = new Text("This is a text node");
        text.setFont(Font.font(Font.getDefault().getFamily(), 81));
        ScaleTransition scale = new ScaleTransition(Duration.seconds(5), text);
        scale.setCycleCount(Animation.INDEFINITE);
        scale.setAutoReverse(true);
        scale.setFromX(0);
        scale.setFromY(0);
        scale.setToX(.5);
        scale.setToY(.5);
        scale.play();
        rootPane.getChildren().add(text);

        Scene scene = new Scene(rootPane, 1200, 800);
        stage.setScene(scene);
        stage.show();