Google says images styled with CSS won’t be indexed in Image Search, advising developers to use HTML tags for important visuals.

His CSS-only chat works by combining background-images loaded via pseudoselectors and a forever-loading index page which keeps the discussion going and the messages going between browsers.

Google's John Mueller said this morning in a webmaster hangout at the 20:55 mark that Google Image search does not index and rank images from CSS background code. He said if you want your images ...