.bb-custom-wrapper {
  background: transparent;
  width: 1000px;
  height: 700px;
  position: relative;
  margin: 19px auto 0;
}

.bb-bookblock {
  width: 900px;
  height: 570px;
  margin: 0 auto;
  background: transparent;
}

.bb-custom-wrapper h3 {
  color: #aaa;
  font-size: 12px;
  line-height: 16px;
  position: absolute;
  left: 10px;
  bottom: -3px;
}

.bb-custom-wrapper .nav {
  width: 120px;
  margin: 8px 10px 0 0;
  float: right;
  position: relative;
  z-index: 0;
}

.bb-custom-wrapper .nav a {
  float: left;
  width: 100px;
  height: 30px;
  opacity: 0.8;
}

.bb-custom-wrapper .nav a:hover {
  opacity: 1;
}

.bb-custom-wrapper .nav a#bb-nav-prev {
  background-position: center left;
  margin-right: 5px;
}

.bb-custom-wrapper .nav a#bb-nav-next {
  background-position: -43px 50%;
}

.bb-custom-wrapper .nav a#bb-nav-jump {
  background-position: center right;
  float: right;
}

.bb-item {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  display: none;
  background-color: transparent;
}

.item-wrapper {
  width: 100%;
  height: 100%;
  background: transparent url(../images/page.png) no-repeat center 10px;
}

.item-wrapper-cover {
  @extends .item-wrapper;
  background-image: none;
}

.cover {
  background-color: transparent;
}

.bb-content {
  background: transparent;
}

.bb-front {
  background: transparent;
}

.bb-back {
  background: transparent;
}

.item-cover {
  position: absolute;
  top: 0;
  left: 0;
}

.item-memo {
  position: absolute;
  top: 0;
  right: 0;
}

body.all #nav {
  position: relative;
  top: 0;
  height: 170px;
}
body.all #nav .top {
  left: 0;
  top: 0;
  position: relative;
  text-align: center;
  margin: 0 auto;
}
body.all #nav #footer {
  position: relative;
  top: 0;
  left: 0;
  margin: 20px auto;
  width: 697px;
  padding-left: 20px;
}
body.all #nav #footer ul {
  height: 50px;
  border-top: 0 none;
}
body.all #nav #footer li {
  float: left;
  border-bottom: 0 none;
}
body.all #nav #footer li.fblike {
  padding-right: 40px;
}
body.all .main {
  overflow: visible;
  height: auto;
}
body.all .bb-custom-wrapper {
  height: auto;
}
body.all .bb-item {
  position: relative;
  background-image: url(../images/book_page.png);
  display: block;
  height: 660px;
  width: 1000px;
}
body.all .bb-bookblock {
  width: 1000px;
  height: auto;
}
body.all .item-wrapper {
  position: absolute;
  top: 33px;
  left: 50px;
  width: 900px;
  height: 570px;
}
body.all .item-wrapper-cover {
  position: absolute;
  top: -1px;
  left: 50px;
  width: 900px;
  height: 570px;
}
body.all .item-wrapper-cover-parent {
  background-image: none;
  margin-bottom: -50px;
}