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

@-moz-document domain("michaelgeist.ca") {

#header, #top, #left, #right, #clearfooter, #footer
  { display: none; }

#centrecontent
  { 
    width: 98% ! important; 
    position: absolute ! important; 
    left: 0 ! important;
    margin: 0 ! important;
  }

}