L. David Baron. <a href="http://www.w3.org/TR/2003/WD-css3-syntax-20030813"><cite>CSS3 module: Syntax.</cite></a> 13 August 2003. W3C Working Draft. (Work in progress.) URL: <a href="http://www.w3.org/TR/2003/WD-css3-syntax-20030813">http://www.w3.org/TR/2003/WD-css3-syntax-20030813</a>