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

@-moz-document domain("mainichi.jp") {
#Header,
.BrClr,
#Footer,
.Crumb,
.Ad,
#SubColumn,
.FootLink,
.FootGenreNavi,
.Article-Head,
.NewsIco,
.ArticleLower,
.AdChumoku {
  display: none !important;
}
.MainMargin {
  margin: 0 !important;
}
}