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

@-moz-document domain("gigazine.net") {
  a[href*="/www/delivery/"],
  iframe[src*="/www/delivery/"],
  iframe[src*=".microad.jp/"],
  iframe[name="google_ads_frame"],
  #advertise,
  #header > *:not(#content),
  #header > #content > *:not(.blogtitle),
  #leftcol > .content > br:first-child,
  #maincol > .content > iframe:first-child + script + br,
  #maincol > .content > iframe:first-child + script + br + br,
  #rightcol > .content > *:not(h3):not(form):not(ul):not(div):not(table),
  script + script + script + ins{
    display : none !important;
  }

  #header {
    height : 140px !important;
    background-image : url("http://gigazine.jp/images/logo.png") !important;
    background-repeat : no-repeat !important;
    background-position : 14px 10px !important;
  }

  #header a[href="http://gigazine.net/"] {
    display : block !important;
    height : 125px !important;
    width : 425px !important;
  }

  #header a[href="http://gigazine.net/"]:hover,
  #header a[href="http://gigazine.net/"]:active {
    background-color : inherit !important;
  }

  #header a[href="http://gigazine.net/"] > img {
    display : none !important;
  }
}