HTML Control With Style
package com.java2s.gwt.client; import com.google.gwt.core.client.EntryPoint; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.ClickListener; import com.google.gwt.user.client.ui.RootPanel; import com.google.gwt.user.client.ui.Widget; import com.google.gwt.user.client.ui.HTML; import com.google.gwt.user.client.ui.Grid; public class GWTClient implements EntryPoint{ public void onModuleLoad() { HTML html = new HTML("caption"); html.setStyleName("layouts-Label"); RootPanel.get().add(html); } } /////// .layouts-Label { background-color: #C3D9FF; font-weight: bold; margin-top: 1em; padding: 2px 0px 2px 0px; width: 100%; } /////////// <module> <inherits name="com.google.gwt.user.User"/> <entry-point class="com.java2s.gwt.client.GWTClient"/> <stylesheet src='your.css'/> </module>