@namespace url(http://www.w3.org/1999/xhtml);
@-moz-document 
  domain("makezine.com"),
  domain("hackszine.com"),
  domain("hackzine.com")
{

div[id="secondary"], span[class="space"], div[id="header"] {display: none !important}

div[id="main"] {width: auto !important}

}