Via: http://ecsstender.org – Say goodbye to the browser-specific properties and hacks cluttering your files and say hello to lean, mean CSS. With eCSStender, when you write the rules, browsers pay attention. Extensions built with eCSStender greatly simplify the design process because you can author modern CSS using advanced selectors, properties such as border-radius, or custom font faces and rest assured that your design will work… even in IE6. To see what you can use today, browse the extensions. To use the extensions, download eCSStender and include it and your extensions in your site.

Direct Link: http://ecsstender.org