public FixedVerticalPanelSamplePane() {
FixedVerticalPanel svp = new FixedVerticalPanel();
DOM.setStyleAttribute(svp.getElement(), "borderBottom", "1px solid blue");
svp.addWidget(createContent("height: 70px", "#CCFFCC", "BLUE"), new VerticalLayoutData().setHeight("70px"));
Widget content = createContent("height: 50%", "#FFFBA3", "GREEN");
content.setVisible(true);
svp.addWidget(content, new VerticalLayoutData().setHeight("50%"));
svp.addWidget(createContent("height: *", "#FFC0CB", "black"));
// svp.addWidget(createContent("height: 50px", "#E6E6FA"), new VerticalLayoutData().setHeight("50px"));
// svp.addWidget(createContent("height: *", "orange"));
FitPanel panel = new FitPanel();