4 <a class="quiet" href="http://validator.w3.org/check/referer">
5 <img class="quiet" alt="Valid XHTML 1.0!" src="images/valid-xhtml10.png" width="88" height="31" />
7 <a class="quiet" href="http://jigsaw.w3.org/css-validator/">
8 <img class="quiet" alt="Valid CSS" src="images/valid-css.png" width="88" height="31" />