It's not unsupported, I just chose not to do this as CSS3 is an issue with IE & Opera for certain editions. I literally couldn't care less that I didn't add it because I know that shadows render differently and more slowly on these browsers. You're literally still missing my point. You think I'm concerned with rendering. I'm not.
Furthermore, the kind of people who use IE & Opera aren't exactly concerned with how websites look.
Look, Twiggy, you're getting on my nerves. There's nothing I can do nor want to do about the style, I can't access it. Yes, I get it, you know how to code. Stop trying to rub it in everyone's face an act like you know better than them. It's very condescending. I'm patiently asking you to stop doing this.