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

@-moz-document domain("atmarkit.co.jp") {
 #rightcol,
 #footer,
 #header,
 #frec,
 #crec,
 #rightmenu{
  display:none !important;
 }
 #centercol,
 #wrap,
 #navibar{
  width:auto !important;
 }
 #header_r{
  float:left !important;
 }
 #main{
  background-image:none !important;
 }

 #wrap{
  background-image:url("http://www.atmarkit.co.jp/include/footer/images/logo_footer.gif") !important;
  background-repeat:no-repeat !important;
  margin:2em !important;
  padding-top:60px !important;
 }
 #navibar{
  margin-bottom:1em !important;
 }
}