public void onModuleLoad() {
final ScrollPanel contentPanel = new ScrollPanel();
contentPanel.setStyleName("content_panel");
RoundedPanel roundedContentPanel = new RoundedPanel(contentPanel, RoundedPanel.ALL, 5);
roundedContentPanel.setStyleName("rounded_content_panel");
MenuBar menuBar = createMenuBar(contentPanel);
RoundedPanel roundedMenuBar = new RoundedPanel(menuBar, RoundedPanel.ALL, 5);
RootPanel.get().add(roundedMenuBar);
RootPanel.get().add(roundedContentPanel);
}
