Creating a Canvas container by using constraint-based layout
<?xml version="1.0"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"> <mx:Canvas width="150" height="150" backgroundColor="#FFFFFF"> <mx:HBox id="hBox2" left="30" right="30" y="50" height="50" backgroundColor="#A9C0E7"> </mx:HBox> </mx:Canvas> </mx:Application>