.flash filename="style_as3.swf" bbox=420x440 version=9 fps=12 background=#666666
 .edittext log width=400 height=350  color=black multiline  
 .put log 0 0
 .action:
 package {
    import flash.display.MovieClip;
    import flash.display.Sprite;
    import flash.net.URLLoader;
    import flash.net.URLRequest;
    import flash.text.*;
    import flash.events.IOErrorEvent;
    import flash.events.Event;
    import flash.events.MouseEvent;
    public dynamic class Main extends MovieClip  {
	function trace(s) {
		   this.log.text+=s+"\n";
	}
 	private var loader:URLLoader =new URLLoader();
 	private var field:TextField  =new TextField();
 	private var ex:String="<h1>This is a headline h1</h1>"
		+"<p>This is a line of text.</p>"
		+"<br><h2>This h2 text will be colored red</h2>"
		+"<BR>apply css by click";
 	private var sheet:StyleSheet = new StyleSheet();
 	private var cssReady:Boolean = false;
  	public function Main() {
	    field.x=field.y = 200;
	    field.background = field.multiline = true;
	    field.autoSize = TextFieldAutoSize.LEFT;
	    field.htmlText = ex;
	    field.addEventListener(MouseEvent.CLICK, clickHandler);
	    addChild(field);
	    var req:URLRequest=new URLRequest("t.css");
	    loader.load(req);
	    loader.addEventListener(IOErrorEvent.IO_ERROR, errorHandler);
	    loader.addEventListener(Event.COMPLETE, loaderCompleteHandler);
	}
 	public function errorHandler(e:IOErrorEvent):void {
	    field.htmlText="Couldn't load css ";
	}
 	public function clickHandler(e:MouseEvent):void {
	    if (cssReady) {
		field.styleSheet=sheet;
		field.htmlText = ex;
		var styl:Object=sheet.getStyle("h1");
		field.htmlText+="<br>h1 font-family:"+styl.fontFamily+ "";
		field.htmlText+="<br>h1 color : "+styl.color+"";  
	    } else {
		field.htmlText="CSS not loaded";
	    }
	}
 	public function loaderCompleteHandler(event:Event):void {
	    var cssFormat:TextFormat= new TextFormat();
	    sheet.parseCSS(loader.data);
//	    trace(loader.data);
	    var style:Object=sheet.getStyle("p");
	    cssFormat=sheet.transform(style);
	    cssReady=true;
	}
    }
}
 .end # action
.end # .flash