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

@-moz-document domain("itmedia.co.jp") {

body > a,
.header, #txtad, .rc, .toolbox-out, #artNavi, .endkwd, .endlink, .footer,
form[action="http://search.itmedia.co.jp/"],
.mainCol .col3l, .mainCol .col3r, .subCol, .searchBox, .headerRap, .gnav03, #COIDP,
#btnlist, .bookmarks, .tbshow, #amazon-item, #ニュース {
    display: none ! important;
    }
.vbody, .articles {
    background: none ! important;
    }
.l600 {
    margin: 0px 10px ! important;
    }

}