.versions-select {
    display: table;
    width: 100%;
    height: 50px;
    padding: 0px 12px;
}

.versions-select > div {
    display: table-cell;
    text-align: center;
    vertical-align: middle;
}

.versions-select select {
    width: 100%;
}



.sidebar-header {
    padding: 12px 0 10px;
    background-color: #2980b9;
    color: #fcfcfc;
}
.sidebar-header h1 {
    margin: 0;
    font-size: 16px;
}
#book-search-input {
    background-color: #2980b9;
    padding-bottom: 15px;
    border: 0;
    text-align: center;
}
#book-search-input input, #book-search-input input:focus, #book-search-input input:hover {
    background-color: #f3f3f3;
    line-height: 15px;
    font-size: 12px;
    width: 95%;
    border-radius: 20px;
    padding: 6 12px;
}

/* .versions-select select {
    display: block;
    width: 100%;
    padding: 0.375rem 2.25rem 0.375rem 0.75rem;
    -moz-padding-start: calc(0.75rem - 3px);
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: #212529;
    background-color: #fff;
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 16px 12px;
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
} */
.book-summary {
    color: #bcc1d2;
    background: #2d3143;
    border-right: none;
}

.book-summary .book-search {
    background: transparent;
}

.book-summary .book-search input,
.book-summary .book-search input:focus {
    border: 1px solid transparent;
}

.book-summary ul.summary li.divider {
    background: #272a3a;
    box-shadow: none;
}

.book-summary ul.summary li i.fa-check {
    color: #33cc33;
}

.book-summary ul.summary li.done>a {
    color: #62687f;
}

.book-summary ul.summary li a,
.book-summary ul.summary li span {
    color: #c1c6d7;
    background: transparent;
    font-weight: 600;
}

.book-summary ul.summary li.active>a,
.book-summary ul.summary li a:hover {
    color: #f4f4f5;
    background: #252737;
    font-weight: 600;
}

.book .book-summary ul.summary li a {
    padding-left: 20px;
    font-weight: normal;
}

.book .book-summary ul.summary li span {
    padding-left: 20px;
    margin-top: 15px;
    font-weight: 600;
    color: #55a5d9;
    font-size: 16px;
}
.book .book-summary ul.summary li  li span {
    color: #f3f3f3;
    font-weight: bold;
}

.book .book-summary .exc-trigger {
    position: static;
    float: left;
    margin-left: -15px;
    cursor: pointer;
}

.book .book-summary .expanded > a .exc-trigger:before, .book .book-summary .expanded > span .exc-trigger:before {
    content: "-";
}

.book .book-summary .exc-trigger:before {
    content: "+";
}

.book .book-summary .articles {
    padding: 0
}

.book .book-summary .summary > li > .articles > li > a  {
    padding-left: 40px;
}
.book .book-summary .summary > li > .articles > li > span {
    padding-left: 35px;
}

.book .book-summary .summary > li > .articles > li > .articles > li > a {
    padding-left: 60px;
}
.book .book-summary .summary > li > .articles > li > .articles > li > span {
    padding-left: 65px;
}


.book .book-summary .summary > li > .articles > li > .articles > li > .articles > li > a {
    padding-left: 80px;
}
.book .book-summary .summary > li > .articles > li > .articles > li > .articles > li > span {
    padding-left: 75px;
}


.book .book-summary .summary > li > .articles > li > .articles > li > .articles > li > .articles > li > a {
  padding-left: 100px;
}
.book .book-summary .summary > li > .articles > li > .articles > li > .articles > li > .articles > li > span {
  padding-left: 85px;
}

.book .book-summary .summary > li > .articles > li > .articles > li > .articles > li > .articles > li >.articles > li > a {
  padding-left: 120px;
}
.book .book-summary .summary > li > .articles > li > .articles > li > .articles > li > .articles > li > .articles > li > span {
  padding-left: 95px;
}


.book-body .page-inner {
    max-width: 80%;
}


.versions-select select {
    display: block;
    width: 100%;
    padding: .375rem 2.25rem .375rem .75rem;
    -moz-padding-start: calc(0.75rem - 3px);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
    color: #212529;
    background-color: #fff;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right .75rem center;
    background-size: 16px 12px;
    border: 1px solid #ced4da;
    border-radius: .25rem;
    transition: border-color .15s ease-in-out,box-shadow .15s ease-in-out;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}