How to build a GWT Drop Down Menu Bar in absolute positioned parent panel?
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I have a GWT application with a header and a content. The header is an absolute positioned 
     
    HorizontalPanel

the content is also a 

    HorizontalPanel

which is positioned absolute. 

How can you get a drop down menu in the header which will not be bounded by the height of the header panel, i.e., positioned absolute?
