désolé votre code xhtml n'est pas valide, voici votre code :
<div class="design-bg-body"><div class="design-bg-head"><div class="design-bg-foot"><div class="tags">Bricolage - Peinture - Tapisserie - Carrelage - Parquet - Menuiserie - Electricité - Sanitaire - Nettoyage - Travaux Jardin</div><table class="design-head"><colgroup><col style="width:500px;"/><col style="width:500px;"/></colgroup><tbody><tr><td><img src="/templates/designs/2011-04/images/logo-kenada-services.png" alt="Logo Kenada Services" title="Logo Kenada Services"/></td><td>CONTACT</td></tr></tbody></table><table class="design-menu"><colgroup><col style="width:20px;"/><col style="width:225px;"/><col style="width:20px;"/><col style="width:225px;"/><col style="width:20px;"/><col style="width:225px;"/><col style="width:20px;"/><col style="width:225px;"/><col style="width:20px;"/></colgroup><tbody><tr class="menu-st"><td></td><td class="link"><a href="/presentation.html">Présentation</a></td><td class="separation"></td><td class="link"><a href="/savoir-faire/">Savoir-Faire</a></td><td class="separation"></td><td class="link"><a href="">Partenaires</a></td><td class="separation"></td><td class="link"><a href="">Contact</a></td><td></td></tr><tr class="menu-nd"><td colspan="9"><table><colgroup><col style="width:20px;"/><col style="width:196px;"/><col style="width:20px;"/><col style="width:196px;"/><col style="width:20px;"/><col style="width:196px;"/><col style="width:20px;"/><col style="width:196px;"/><col style="width:20px;"/></colgroup><tbody><tr><td></td><td class="link"><a href="">Présentation</a></td><td class="separation"></td><td class="link"><a href="">Savoir-Faire</a></td><td class="separation"></td><td class="link"><a href="">Partenaires</a></td><td class="separation"></td><td class="link"><a href="">Contact</a></td><td></td></tr></tbody></table></td></tr></tbody></table><div class="design-content-head"><div class="design-content-foot"><div class="design-content-body-body"><div class="design-content-body-head"><div class="design-content-body-foot"><div class="content"></div></div></div></div></div></div><table class="design-foot"><colgroup><col style="width:200px;"/><col style="width:600px;"/></colgroup><tbody><tr><td class="l"><a href="http://kenada-services.com/">kenada-services.com</a> © <?=date('Y');?></td><td class="r"><div class="logos"><a class="w3c" href="http://jigsaw.w3.org/css-validator/check/referer"><img src="/templates/designs/2011-04/images/logo-css.png" alt="CSS Level 2 Revision 1" title="CSS Level 2 Revision 1"/></a><a class="w3c" href="http://validator.w3.org/check/referer"><img src="/templates/designs/2011-04/images/logo-xhtml.png" alt="XHTML 1.0 Strict" title="XHTML 1.0 Strict"/></a><div class="browsers firefox" title="Compatible Firefox 2"></div><div class="browsers ie" title="Compatible Internet Explorer 6"></div><div class="browsers opera" title="Compatible Opera 9"></div><div class="browsers safari" title="Compatible Safari 3"></div></div><div class="copyright">Charte graphique et programmation par <a href="http://kenada.fr/">kenada.fr</a></div></td></tr></tbody></table></div></div></div>