What's the semantic of “@media screen and (-webkit-min-device-pixel-ratio:0)”?

Question

I happened to use the below CSS hack for WebKit-based browsers, according to http://www.webmonkey.com/2010/02/browser-specific_css_hacks/.

@media screen and (-we         


        

Answer 1

Only use this:

@media(-webkit-min-device-pixel-ratio:0) {

}