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

@-moz-document domain("lifehacker.com") {
 #marquee, #expandButton, #header_container{display:none !important;}
  #menubar{ margin-top: 20px !important;}
  #custom-sidebar,
  #sub-menu{
    height: 16px !important;
  }

  #sub-menu a{
    margin: 0 0 0 5px !important;
    height: 11px !important;
    width: 11px !important;
  }

  #sidebar .spacer {
    height: 1px !important;
    display: none !important;
  }

  #main {
    padding-top: 1em !important;
  }
  .bloody,
  .sponsored,
  .highlight{
    display: none;
  }
  #splashPosts{
    display:none !important;
  }
  #header {
    height: 50px !important;
  }

}