WebView webViev1 = new WebView();
            webViev1.getEngine().load("https://10");
            webViev1.setPrefSize(10,10);
            primaryStage.setScene(new Scene (webViev1));
            primaryStage.show();

            WebView webViev2 = new WebView();
            webViev2.getEngine().load("https://20");
            webViev2.setPrefSize(20,20);
            primaryStage.setScene(new Scene (webViev2));
            primaryStage.show();