Show setting the sizes of a container and its child
<?xml version="1.0"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"> <mx:HBox id="myHBox" width="150" height="150"> <mx:TextInput id="myInput" text="Enter the zip code" width="200" height="40" /> </mx:HBox> </mx:Application>