#subSectionNavDorpDown {
  z-index: 20;
  display: block;
}

#subSectionNavDorpDown dt {
    height: 0;
    overflow: hidden;
    position: absolute;
    width: 0;
}

#subSectionNavDorpDown:after {
    clear: both;
    content: ".";
    display: block;
    font-size: 0.1em;
    height: 0;
    line-height: 0;
    visibility: hidden;
}

#subSectionNavDorpDown .menuList {
    font-size: 75%;
    line-height: 1.1;
    padding-left: 10px;
}

#subSectionNavDorpDown .menuList ul li a {
    border-right: 1px solid #999999;
    color: #666666;
    display: block;
    padding: 0 10px;
    white-space: nowrap;
}

#subSectionNavDorpDown .menuList ul li {
  display: inline;
  float: left;
  list-style-type: none;
  padding: 0 0 0  8px;
  margin: 5px 0 5px;
  border: 1px solid transparent;
  position: relative;
  z-index: 5;
}

#subSectionNavDorpDown .menuList ul li.last a {
    border: medium none;
    padding-right: 0;
}
#subSectionNavDorpDown .menuList ul li.current {
    font-weight: bold;
}

#subSectionNavDorpDown .menuList ul li.submenu {
  background: none;
  margin-right: 5px;
  padding-left: 0;
}
#subSectionNavDorpDown .menuList ul li.submenu a {
  padding-left: 8px;
  background: transparent url(//image.books.rakuten.co.jp/books/img/common/main/downarrow.gif) right 8px no-repeat;
}

#subSectionNavDorpDown .menuList ul li a:link, 
#subSectionNavDorpDown .menuList ul li a:visited {
    color: #666666;
    font-weight: bold;
}


#subSectionNavDorpDown .menuList ul li.active {
  border: 1px solid #999999;
}
#subSectionNavDorpDown .menuList ul li.active > a {
  text-decoration: none !important;
  background: white url(//image.books.rakuten.co.jp/books/img/common/main/downarrow.gif) right 8px no-repeat;
  position: relative;
  z-index: 3;
}
#subSectionNavDorpDown .menuList ul li .submenubox {
  position: absolute;
  z-index: 2;
  top: 100%;
  left: -1px;
  background: #ffffff;
  min-width: 120px;
  width: auto;
  padding: 1px 0px;
  border: 1px solid #999999;
  margin: -1px 0 0;
  display: none;
}
#subSectionNavDorpDown .menuList ul li .submenubox li {
  float: none;
  display: block;
  padding: 0;
  margin: 0;
  background: none;
}
#subSectionNavDorpDown .menuList ul li .submenubox li.last {
  border-bottom: none;
}
#subSectionNavDorpDown .menuList ul li .submenubox li a {
  color: #0F33CC;
  font-weight: normal;
  display: block;
  background: none;
  border: none;
  border-left: 4px solid #ffffff;
  padding: 5px 5px 5px 13px;
  margin: 0;
}
#subSectionNavDorpDown .menuList ul li .submenubox li a:hover {
  text-decoration: none;
  color: #000;
  background: #E9E9E9;
  border: none;
  border-left: 4px solid #bf0000;
}
#subSectionNavDorpDown .menuList ul li a {
  padding: 5px 12px 2px 0px;
  border: 1px solid transparent;
}
#subSectionNavDorpDown .menuList ul li.kobo {
  background: none;
}
#subSectionNavDorpDown .menuList ul li.kobo a {
  display: block;
}
#subSectionNavDorpDown .menuList ul li.kobo img {
    margin-top: -1px;
    padding-bottom: 1px;
}


#subSectionNavDorpDown .menuList ul li.alignRight {
  background: none;
  padding-left: 0;
}
#subSectionNavDorpDown .menuList ul li.alignRight a {
  display: block;
  margin-left: -5px;
}
#subSectionNavDorpDown .menuList ul li.alignRight.submenu a {
  margin-right: 0;
  background: #fff;
}
#subSectionNavDorpDown .menuList ul li.alignRight .submenubox {
  background: #ffffff;
  right: -1px;
  left: auto;
}
#subSectionNavDorpDown .menuList ul li.alignRight .submenubox li {
  float: none;
}
#subSectionNavDorpDown .menuList ul li.alignRight .submenubox li a:hover {
  border: none;
  border-left: 4px solid #bf0000;
}

#subSectionNavDorpDown .menuList ul li.alignRight {
    float: right;
    margin-right: 10px;
    padding-left: 5px;
}
#subSectionNavDorpDown .menuList ul li.alignRight img {
  vertical-align: middle;
  width: 12px;
  height: 17px;
  margin-right: 4px;
  background-image: url("//image.books.rakuten.co.jp/books/img/common/main/icon/icon_beginner.gif");
  background-color: transparent;
  background-repeat: no-repeat;
  background-attachment: scroll;
}


/*Start Clearfix*/
#grpheader:after{
  clear: both;
  content: ".";
  display: block;
  font-size: 0.1em;
  height: 0;
  line-height: 0;
  visibility: hidden;
}

#grpheader{
  display: inline-block;
}

* html #grpheader{
  height: 1%;
}

#grpheader{
  display: block;
}


div#sidemenu {
    z-index: 19  !important;
}