@namespace url(http://www.w3.org/1999/xhtml);

@-moz-document url("http://webtec.itesm.mx/cgi-bin/WebObjects/webtecXS") {
   body {
       background-color: #000 !important;
       background-image: url("http://img411.imageshack.us/img411/3843/webtecportadaao8.jpg") !important;
       background-repeat: no-repeat !important;
   }
   TABLE {
       background-color: #000;
       background-image: url("") !important;
   }
   TD {
       background-image: url("");
   }
}