His code uses an invalid technique that go against the spec[1]. You cannot add generated content to a replaced element IE8 and Mozilla follow the spec, webkit a

His code uses an invalid technique that go against the spec[1]. You cannot add generated content to a replaced element IE8 and Mozilla follow the spec, webkit and Opera don't. It's a shame that this is the case. [1]http://www.w3.org/TR/css3-content/#replacedContent http://www.w3.org/TR/css3-content/#replacedContent