table#togodb_show_table td span.icon_l {
  background: url("http://dbarchive.biosciencedbc.jp/archive/taxonomy_icon/icon_L.png") no-repeat scroll right 0 transparent;
  width: 120px;
  height: 90px;
  display: inline-block;
  cursor: pointer;
  padding: 0;
}
table#togodb_show_table td span.icon_nl {
  background: url("http://dbarchive.biosciencedbc.jp/archive/taxonomy_icon/icon_NL.png") no-repeat scroll right 0 transparent;
  width: 120px;
  height: 90px;
  display: inline-block;
  cursor: pointer;
  padding: 0;
}
table#togodb_show_table td span.icon_s {
  background: url("http://dbarchive.biosciencedbc.jp/archive/taxonomy_icon/icon_S.png") no-repeat scroll right 0 transparent;
  width: 32px;
  height: 24px;
  display: inline-block;
  cursor: pointer;
  padding: 0;
}
table#togodb_show_table td span.icon_ns {
  background: url("http://dbarchive.biosciencedbc.jp/archive/taxonomy_icon/icon_NS.png") no-repeat scroll right 0 transparent;
  width: 32px;
  height: 24px;
  display: inline-block;
  cursor: pointer;
  padding: 0;
}