Use StackPanel
package com.java2s.gwt.client; import com.google.gwt.core.client.EntryPoint; import com.google.gwt.user.client.ui.CheckBox; import com.google.gwt.user.client.ui.Composite; import com.google.gwt.user.client.ui.Label; import com.google.gwt.user.client.ui.ScrollListener; import com.google.gwt.user.client.ui.ScrollPanel; import com.google.gwt.user.client.ui.StackPanel; import com.google.gwt.user.client.ui.Widget; import com.google.gwt.user.client.ui.RootPanel; public class GWTClient implements EntryPoint{ public void onModuleLoad() { StackPanel sPanel = new StackPanel(); sPanel.add(new Label("1"), "StackPanel 1"); sPanel.add(new Label("2"), "StackPanel 2"); sPanel.add(new Label("3"), "StackPanel 3"); sPanel.setStyleName("panel sPanel"); RootPanel.get().add(sPanel); } }