Example:
/* text attributes */
p { color: #333333; font-family: “Gill Sans MT”; font-size: 14; line-height: 16; display: block }

Here’s a class I developed that I use to load style sheets and apply the text style to the newly created style sheet within another class.

package classes{

import flash.text.StyleSheet;
import flash.text.*;
import flash.events.*;
import flash.net.*;
/*********************************************/
/* class is responsible for loading the */
/* course stylesheet that holds all text, */
/* bullets, citations, copyright, fonts, and */
/* any other textual related styling */
/*********************************************/
public class LoadStyleSheet extends EventDispatcher {

/* variables needed to load the stylesheet */
static public var styleSheetCSS:StyleSheet;
private var cssLoader:URLLoader;
private var cssRequest:URLRequest;

/* constructor function */
public function LoadStyleSheet() {
}

public function loadStyleSheetItem(styleSheetLocation:String):void {
var cssLoader:URLLoader = new URLLoader();
cssLoader.addEventListener( Event.COMPLETE, handleLoadComplete, false, 0, true );
cssLoader.load(new URLRequest(styleSheetLocation));
}
public function handleLoadComplete(event:Event):void {
event.target.removeEventListener( Event.COMPLETE, handleLoadComplete, false );
if ( !styleSheetCSS )styleSheetCSS = new StyleSheet();
styleSheetCSS.parseCSS(event.target.data);
dispatchEvent(event);
}
public function grabStyleSheet():StyleSheet {
return styleSheetCSS;
}

/*********************************************/
/* this function can be reused at anytime to */
/* apply the css to a textArea or textField */
/* be sure to call the grabStyleSheet first */
/* before applying as it needs to be passed */
/* from the class that its being called from */
/*********************************************/
public function setTextStyle(whatTextField_txt:TextField, styleSheetCSS:StyleSheet):void {
/* set text propeties */
whatTextField_txt.styleSheet = styleSheetCSS;
whatTextField_txt.selectable = false;
whatTextField_txt.autoSize = TextFieldAutoSize.LEFT;
whatTextField_txt.condenseWhite = true;
whatTextField_txt.multiline = true;
whatTextField_txt.wordWrap = true;
whatTextField_txt.embedFonts = true;
whatTextField_txt.antiAliasType = “advanced”;
}
}
}