HI, all I'm new at gxt and i have a problem with the Button-Widget and SetStyleName.

Here is the Code :

Code:
import com.extjs.gxt.ui.client.widget.button.Button;
// import com.google.gwt.user.client.ui.Button;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.user.client.ui.RootPanel;

/**
 * Entry point classes define <code>onModuleLoad()</code>.
 */
public class Test implements EntryPoint {

    public void onModuleLoad() {
        Button bTest=new Button("Test");
        bTest.setStyleName("myButton");
        RootPanel.get("inhalt").add(bTest);
    }
}
and the CSS:

Code:
.myButton {
 background-image: none;
 background-color: white;
 color : black;
 border : none;    
}

.myButton:hover {
  background-image: none;
  border:none;    
}
If I take the Button from the GWT it works perfekt. When I use the gxt-Button the CSS will be ignored.

Where is my mistake?

Thanks