Ram Ratan Maurya

It’s available only above Safari 6 and Chrome 21. As of now, it’s still a CSS4 spec I guess. So there isn’t going to be any cross browser solution anytime soon.

You saved my day John, I was looking for exactly this.

Unfortunately not, but you can do this.

body{
    background-image:  url('path/to/image');
    background-image: -webkit-image-set( url('path/to/image') 1x, url('path/to/high-res-image') 2x );
}

And then use @media syntax to define @2x image.
This syntax is future proof, works in current versions of Safari and Chrome. Waiting for the day when other browser implements it as well.

How about attribute hidden?

Error with the link!