How to remove footer from Popup Window using Vaadin and CSS

General
1

Hi, i have created a new popup window on layout click and i just don’t want the new popup window’s footer. Could anyone help me in removing footer using Vaadin and also the popup is stretchable even after set as below,

final Window popup = new Window("", new verticalLayout());
	
		popup.setDraggable(false);
2

Try to say:

popup.setResizable(false);