Here's how their post starts:<p><i>Román Cortés is having a lot of fun with CSS tricks these days. He just built an example rolling CSS coke can that uses background-attachment, background-position, and a few other tricks to get the effect. No fancy CSS3 needed here!</i><p>It looks like they gave him full credit for this. Unless he was selling access to this blog post, I'm not sure why this is an issue. It seems even more benign than piracy. (And as sophacles points out, this uses less bandwidth than a direct link, too.)<p>Clearly, Román is willing to have his bandwidth used in order for people to look at his cool CSS trick. So why is this a problem when it's a little less bandwidth, plus a third-party endorsement?