layout.addComponent(new Label("Next row"));
addComponent(layout);
layout = new GridLayout(1, 2);
layout.setWidth("100%");
layout.addComponent(new Label("<h1>Grid layout</h1>", ContentMode.HTML));
layout.addComponent(new Label("Next row"));
addComponent(layout);
TabSheet tabSheet = new TabSheet();
tabSheet.addTab(new Label("<h1>Tabsheet</h1>", ContentMode.HTML),