Try embedding your fonts, that should fix your problem. Flex can not display rotated fonts unless they are embedded.
-- Sent from my Palm Pre markflex2007 wrote: I try to vertical button like.but I can not see label in button. <mx:HBox width="100%" rotation="90" x="100" y="100" clipContent="true"> <mx:Button id="myButton" label="CLICK ME" height="30" rotation="90" /> </mx:HBox> Do you have other ways.Thanks Mark