<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/09/24/displaying-a-drop-shadow-behind-a-vbox-container-in-flex/ -->
<mx:Application name="VBox_dropShadowEnabled_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Script>
        <![CDATA[
            private function init():void {
                vBox.setStyle("dropShadowEnabled", true);
                vBox.setStyle("borderStyle", "solid");
                vBox.setStyle("borderThickness", 0);
                vBox.setStyle("backgroundColor", "red");
            }
        ]]>
    </mx:Script>

    <mx:VBox id="vBox"
            width="100%"
            height="100%"
            initialize="init();">
        <mx:Label text="{Capabilities.version}"
                fontSize="64" />
    </mx:VBox>

</mx:Application>