Using <h3> headings for the links had two disadvantages. First, it was the wrong heading level to use, since there was no <h2> tag before it. Second, headings are supposed to be followed by content associated to that heading; here, we had no content following the headings. So we're using a list of links and giving it a heading. We're adding styles so the page still looks like it used to, although these styles are certainly asking for improvements.