.book-tree-nav > ul li {
  position: relative;
  list-style-type: none;

}
.book-tree-nav > ul.menu.main.mobile-dropdown {
  padding: 0;
  margin: 0;
}
@media (max-width: 880px) {
  .layout-sidebar-first #block-booktreenavigation > .block__content {
    margin: 0;
    padding: 1em 0 0;
  }

  .layout-sidebar-first #block-booktreenavigation {
    background-color: #264b65;
  }

  .layout-sidebar-first #block-booktreenavigation > .block__content ul.menu.main.mobile-dropdown li:first-child {
    border-top: 1px solid #356b91;
  }

  .layout-sidebar-first #block-booktreenavigation > .block__content ul.menu.main.mobile-dropdown li {
    border-bottom: 1px solid #356b91;
    padding: 1em 30px;
  }

  .layout-sidebar-first #block-booktreenavigation > .block__content ul.menu.main.mobile-dropdown li .fa {
    position: relative;
    top: 0;
    left: -6px;
  }

  .layout-sidebar-first #block-booktreenavigation > .block__content ul.menu.main.mobile-dropdown li.menu-item--collapsed,
  .layout-sidebar-first #block-booknavigation > .block__content ul.menu.main.mobile-dropdown li.menu-item--expanded {
    margin: 0;
  }

  .layout-sidebar-first #block-booktreenavigation > .block__content ul.menu.main.mobile-dropdown a {
    color: #fff;
  }

  .layout-sidebar-first #block-booktreenavigation > .block__content ul.menu.main.mobile-dropdown ul.nested li:first-child {
    border-top: 0;
  }

  .layout-sidebar-first #block-booktreenavigation > .block__content ul.menu.main.mobile-dropdown ul.nested li {
    border-bottom: 0;
    padding: .5em 3%;
  }

  ul.menu.main li {
    margin-bottom: .75em;
  }

  .layout-sidebar-first #block-booktreenavigation > .block__content ul.menu.main.mobile-dropdown .fa-caret-down,
  .layout-sidebar-first #block-booktreenavigation > .block__content ul.menu.main.mobile-dropdown .fa-caret-right,
  .layout-sidebar-first #block-booktreenavigation > .block__content ul.menu.main.mobile-dropdown .fa-minus,
  .layout-sidebar-first #block-booktreenavigation > .block__content ul.menu.main.mobile-dropdown a {
    color: #fff;
  }

  .layout-sidebar-first #block-booktreenavigation li.menu-item--active-trail > a {
    border-color: #fff;
  }

  .layout-sidebar-first #block-booktreenavigation i.fa.fa-bars {
    position: absolute;
    right: 5.7%;
    margin-left: 0;
  }




  #block-booktreenavigation h2.block__title {
    padding-left: 1em;
  }

  #block-booktreenavigation #block-archivesearch {
    padding-left: 12px;
  }
  #block-booktreenavigation .cover-link{
    display: none;
  }
  #block-booktreenavigation .block__content {
    display: none;
  }

}
#block-booktreenavigation h2.block__title.no-highlight a{
  font-weight: bold;
  color:#264b65;
}
.book-tree-nav .expand-all {
  display: none;
}
.book-tree-nav .expand-all a {
  margin-left: 16px;
  text-decoration: underline;
}
@media (min-width: 880px) {
  .cover-link {
    display: block;
  }
  .cover-link a {
    color: #264b65;
    font-weight: bold;
    margin-top: 0px;
  }
  #block-booktreenavigation .block__title{
    display: none;
  }
  .book-tree-nav > ul li{
    margin-left: 17px;
  }
}