article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
main,
nav,
section,
summary {
    display: block
}

audio,
canvas,
video {
    display: inline-block
}

audio:not([controls]) {
    display: none;
    height: 0
}

[hidden] {
    display: none
}

html {
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%
}

body {
    margin: 0
}

a:focus {
    outline: 0
}

a:active,
a:hover {
    outline: 0
}

abbr[title] {
    border-bottom: 1px dotted
}

b,
strong {
    font-weight: bold
}

dfn {
    font-style: italic
}

hr {
    -moz-box-sizing: content-box;
    box-sizing: content-box;
    height: 0
}

mark {
    background: #ff0;
    color: #000
}

code,
kbd,
pre,
samp {
    font-size: 1em
}

pre {
    white-space: pre-wrap
}

q {
    quotes: "\201C""\201D""\2018""\2019"
}

small {
    font-size: 80%
}

sub,
sup {
    font-size: 75%;
    line-height: 0;
    position: relative;
    vertical-align: baseline
}

sup {
    top: -0.5em
}

sub {
    bottom: -0.25em
}

img {
    border: 0
}

svg:not(:root) {
    overflow: hidden
}

figure {
    margin: 0
}

fieldset {
    border: 1px solid #c0c0c0;
    margin: 0 2px;
    padding: .35em .625em .75em
}

legend {
    border: 0;
    padding: 0
}

button,
input,
select,
textarea {
    font-size: 100%;
    margin: 0
}

button,
input {
    line-height: normal
}

button,
select {
    text-transform: none
}

button,
html input[type="button"],
input[type="reset"],
input[type="submit"] {
    -webkit-appearance: button;
    cursor: pointer
}

button[disabled],
html input[disabled] {
    cursor: default
}

input[type="checkbox"],
input[type="radio"] {
    box-sizing: border-box;
    padding: 0
}

input[type="search"] {
    -webkit-appearance: textfield;
    -moz-box-sizing: content-box;
    -webkit-box-sizing: content-box;
    box-sizing: content-box
}

input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-decoration {
    -webkit-appearance: none
}

button::-moz-focus-inner,
input::-moz-focus-inner {
    border: 0;
    padding: 0
}

textarea {
    overflow: auto;
    vertical-align: top
}

table {
    border-collapse: collapse;
    border-spacing: 0
}

.link-inherit {
    color: inherit
}

.link-inherit:hover,
.link-inherit:focus {
    color: inherit
}

.hidden {
    display: none
}

.clearfix {
    *zoom: 1
}

.clearfix:before,
.clearfix:after {
    content: "";
    display: table
}

.clearfix:after {
    clear: both
}

.book-langs-index {
    width: 100%;
    height: 100%;
    padding: 40px 0;
    margin: 0;
    overflow: auto
}

.book-langs-index .inner {
    max-width: 600px;
    width: 100%;
    margin: 0 auto;
    padding: 30px;
    background: #fff;
    border-radius: 3px
}

.book-langs-index .inner h3 {
    margin: 0
}

.book-langs-index .inner .languages {
    list-style: none;
    padding: 20px 30px;
    margin-top: 20px;
    border-top: 1px solid #eee;
    *zoom: 1
}

.book-langs-index .inner .languages:before,
.book-langs-index .inner .languages:after {
    content: " ";
    display: table;
    line-height: 0
}

.book-langs-index .inner .languages:after {
    clear: both
}

.book-langs-index .inner .languages:before,
.book-langs-index .inner .languages:after {
    content: "";
    display: table
}

.book-langs-index .inner .languages:after {
    clear: both
}

.book-langs-index .inner .languages li {
    width: 50%;
    float: left;
    padding: 10px 5px;
    font-size: 16px
}

.book .book-header {
    padding: 0 8px;
    z-index: 2;
    font-size: 14px;
    color: #7e888b;
    background: transparent
}

.book .book-header .btn {
    display: block;
    height: 50px;
    padding: 0 15px;
    border-bottom: 0;
    color: #ccc;
    line-height: 50px;
    -webkit-box-shadow: none !important;
    box-shadow: none !important;
    position: relative;
    font-size: 14px
}

.book .book-header .btn:hover {
    position: relative;
    text-decoration: none;
    color: #444;
    background: 0
}

.book .book-header h1 {
    margin: 0;
    font-size: 20px;
    font-weight: 200;
    text-align: center;
    line-height: 50px;
    -webkit-transition: opacity ease .4s;
    -moz-transition: opacity ease .4s;
    -o-transition: opacity ease .4s;
    transition: opacity ease .4s;
    padding-left: 200px;
    padding-right: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap
}

.book .book-header h1 a,
.book .book-header h1 a:hover {
    color: inherit;
    text-decoration: none
}

.book .book-header h1 i {
    display: none
}

.book .book-header:hover h1 {
    opacity: 1
}

.book.is-loading .book-header h1 i {
    display: inline-block
}

.book.is-loading .book-header h1 a {
    display: none
}

.book.color-theme-1 .book-header {
    color: #afa790;
    background: transparent
}

.book.color-theme-1 .book-header .btn {
    color: #afa790
}

.book.color-theme-1 .book-header .btn:hover {
    color: #73553c;
    background: 0
}

.book.color-theme-1 .book-header h1 {
    color: #704214
}

.book.color-theme-2 .book-header {
    color: #7e888b;
    background: transparent
}

.book.color-theme-2 .book-header .btn {
    color: #3b3f54
}

.book.color-theme-2 .book-header .btn:hover {
    color: #fffff5;
    background: 0
}

.book.color-theme-2 .book-header h1 {
    color: #bdcadb
}

.dropdown {
    position: relative
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 900000;
    display: none;
    float: left;
    min-width: 160px;
    padding: 10px;
    margin: 2px 0 0;
    list-style: none;
    background-color: #fafafa;
    border: 1px solid rgba(0, 0, 0, 0.07);
    border-radius: 1px;
    -webkit-box-shadow: 0 6px 12px rgba(0, 0, 0, 0.175);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.175);
    background-clip: padding-box
}

.dropdown-menu.open {
    display: block
}

.dropdown-menu.dropdown-left {
    left: auto;
    right: 4%
}

.dropdown-menu.dropdown-left .dropdown-caret {
    right: 14px;
    left: auto
}

.dropdown-menu .dropdown-caret {
    position: absolute;
    top: -8px;
    left: 14px;
    width: 18px;
    height: 10px;
    float: left;
    overflow: hidden
}

.dropdown-menu .dropdown-caret .caret-outer {
    position: absolute;
    border-left: 9px solid transparent;
    border-right: 9px solid transparent;
    border-bottom: 9px solid rgba(0, 0, 0, 0.1);
    height: auto;
    left: 0;
    top: 0;
    width: auto;
    display: inline-block;
    margin-left: -1px
}

.dropdown-menu .dropdown-caret .caret-inner {
    position: absolute;
    display: inline-block;
    margin-top: -1px;
    left: 0;
    top: 1px;
    border-left: 9px solid transparent;
    border-right: 9px solid transparent;
    border-bottom: 9px solid #fafafa
}

.dropdown-menu .buttons:before,
.dropdown-menu .buttons:after {
    content: " ";
    display: table;
    line-height: 0
}

.dropdown-menu .buttons:after {
    clear: both
}

.dropdown-menu .buttons:before,
.dropdown-menu .buttons:after {
    content: "";
    display: table
}

.dropdown-menu .buttons:after {
    clear: both
}

.dropdown-menu .buttons:last-child {
    border-bottom: 0
}

.dropdown-menu .buttons .button {
    border: 0;
    background-color: transparent;
    color: #a6a6a6;
    width: 100%;
    text-align: center;
    float: left;
    line-height: 1.428571429;
    padding: 8px 4px
}

.dropdown-menu .buttons .button:hover {
    color: #444
}

.dropdown-menu .buttons .button:focus,
.dropdown-menu .buttons .button:hover {
    outline: 0
}

.dropdown-menu .buttons .button.size-2 {
    width: 50%
}

.dropdown-menu .buttons .button.size-3 {
    width: 33%
}

.dropdown-menu .qrcode {
    padding: 17px;
    background-color: #fafafa
}

.color-theme-1 .dropdown-menu {
    background-color: #111;
    border-color: rgba(0, 0, 0, 0.07)
}

.color-theme-1 .dropdown-menu .dropdown-caret .caret-inner {
    border-bottom: 9px solid #111
}

.color-theme-1 .dropdown-menu .buttons {
    border-color: rgba(0, 0, 0, 0.07)
}

.color-theme-1 .dropdown-menu .button {
    color: #afa790
}

.color-theme-1 .dropdown-menu .button:hover {
    color: #73553c
}

.color-theme-1 .dropdown-menu .qrcode {
    padding: 17px;
    background-color: #fafafa
}

.color-theme-2 .dropdown-menu {
    background-color: #2d3143;
    border-color: #272a3a
}

.color-theme-2 .dropdown-menu .dropdown-caret .caret-inner {
    border-bottom: 9px solid #2d3143
}

.color-theme-2 .dropdown-menu .buttons {
    border-color: #272a3a
}

.color-theme-2 .dropdown-menu .button {
    color: #62677f
}

.color-theme-2 .dropdown-menu .button:hover {
    color: #f4f4f5
}

.color-theme-2 .dropdown-menu .qrcode {
    padding: 17px;
    background-color: #fafafa
}

.alert {
    padding: 15px;
    margin-bottom: 20px;
    color: #444;
    background: #eee;
    border-bottom: 5px solid #ddd
}

.alert-success {
    background: #dff0d8;
    border-color: #d6e9c6;
    color: #3c763d
}

.alert-info {
    background: #d9edf7;
    border-color: #bce8f1;
    color: #31708f
}

.alert-danger {
    background: #f2dede;
    border-color: #ebccd1;
    color: #a94442
}

.alert-warning {
    background: #fcf8e3;
    border-color: #faebcc;
    color: #8a6d3b
}

.book .book-summary {
    position: absolute;
    top: 0;
    left: -350px;
    bottom: 0;
    z-index: 1;
    width: 350px;
    color: #364149;
    background: #fafafa;
    border-right: 1px solid rgba(0, 0, 0, 0.07);
    -webkit-transition: left 250ms ease;
    -moz-transition: left 250ms ease;
    -o-transition: left 250ms ease;
    transition: left 250ms ease
}

.book .book-summary .book-search {
    padding: 6px;
    background: transparent;
    position: absolute;
    top: -50px;
    left: 0;
    right: 0;
    -webkit-transition: top .5s ease;
    -moz-transition: top .5s ease;
    -o-transition: top .5s ease;
    transition: top .5s ease
}

.book .book-summary .book-search input,
.book .book-summary .book-search input:focus,
.book .book-summary .book-search input:hover {
    width: 100%;
    background: transparent;
    border: 1px solid transparent;
    -webkit-box-shadow: none;
    box-shadow: none;
    outline: 0;
    line-height: 22px;
    padding: 7px 4px;
    color: inherit
}

.book .book-summary ul.summary {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow-y: auto;
    list-style: none;
    margin: 0;
    padding: 0 0 30px;
    -webkit-transition: top .5s ease;
    -moz-transition: top .5s ease;
    -o-transition: top .5s ease;
    transition: top .5s ease
}

.book .book-summary ul.summary li {
    list-style: none
}

.book .book-summary ul.summary li.divider {
    height: 1px;
    margin: 7px 0;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.07)
}

.book .book-summary ul.summary li i.fa-check {
    display: none;
    position: absolute;
    right: 9px;
    top: 16px;
    font-size: 9px;
    color: #3c3
}

.book .book-summary ul.summary li.done>a {
    color: #364149;
    font-weight: normal
}

.book .book-summary ul.summary li.done>a i {
    display: inline
}

.book .book-summary ul.summary li a,
.book .book-summary ul.summary li span {
    display: block;
    padding: 10px 15px;
    border-bottom: 0;
    color: #364149;
    background: transparent;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
    position: relative
}

.book .book-summary ul.summary li span {
    cursor: not-allowed;
    opacity: .3;
    filter: alpha(opacity=30)
}

.book .book-summary ul.summary li.active>a,
.book .book-summary ul.summary li a:hover {
    color: #008cff;
    background: transparent;
    text-decoration: none
}

.book .book-summary ul.summary li ul {
    padding-left: 20px
}

.book.with-summary .book-summary {
    left: 0
}

.book.without-animation .book-summary {
    -webkit-transition: none !important;
    -moz-transition: none !important;
    -o-transition: none !important;
    transition: none !important
}

.book.with-search .book-summary .book-search {
    top: 0
}

.book.with-search .book-summary ul.summary {
    top: 50px
}

.book.color-theme-1 .book-summary {
    color: #afa790;
    background: #111;
    border-right: 1px solid rgba(0, 0, 0, 0.07)
}

.book.color-theme-1 .book-summary .book-search {
    background: transparent
}

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

.book.color-theme-1 .book-summary ul.summary li.divider {
    background: rgba(0, 0, 0, 0.07);
    box-shadow: none
}

.book.color-theme-1 .book-summary ul.summary li i.fa-check {
    color: #3c3
}

.book.color-theme-1 .book-summary ul.summary li.done>a {
    color: #877f6a
}

.book.color-theme-1 .book-summary ul.summary li a,
.book.color-theme-1 .book-summary ul.summary li span {
    color: #877f6a;
    background: transparent;
    font-weight: normal
}

.book.color-theme-1 .book-summary ul.summary li.active>a,
.book.color-theme-1 .book-summary ul.summary li a:hover {
    color: #704214;
    background: transparent;
    font-weight: normal
}

.book.color-theme-2 .book-summary {
    color: #bcc1d2;
    background: #2d3143;
    border-right: 0
}

.book.color-theme-2 .book-summary .book-search {
    background: transparent
}

.book.color-theme-2 .book-summary .book-search input,
.book.color-theme-2 .book-summary .book-search input:focus {
    border: 1px solid transparent
}

.book.color-theme-2 .book-summary ul.summary li.divider {
    background: #272a3a;
    box-shadow: none
}

.book.color-theme-2 .book-summary ul.summary li i.fa-check {
    color: #3c3
}

.book.color-theme-2 .book-summary ul.summary li.done>a {
    color: #62687f
}

.book.color-theme-2 .book-summary ul.summary li a,
.book.color-theme-2 .book-summary ul.summary li span {
    color: #c1c6d7;
    background: transparent;
    font-weight: 600
}

.book.color-theme-2 .book-summary ul.summary li.active>a,
.book.color-theme-2 .book-summary ul.summary li a:hover {
    color: #f4f4f5;
    background: #252737;
    font-weight: 600
}

.book-header #font-settings-wrapper #enlarge-font-size,
.book-header #font-settings-wrapper #reduce-font-size {
    line-height: 30px
}

.book-header #font-settings-wrapper #enlarge-font-size {
    font-size: 1.4em
}

.book-header #font-settings-wrapper #reduce-font-size {
    font-size: 1em
}

.book {
    position: relative;
    width: 100%;
    height: 100%
}

.book .book-body {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
    overflow-y: auto;
    color: #000;
    background: #fff;
    -webkit-transition: left 250ms ease;
    -moz-transition: left 250ms ease;
    -o-transition: left 250ms ease;
    transition: left 250ms ease
}

.book .book-body .body-inner {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
    overflow-y: auto
}

.book .book-body .page-wrapper {
    position: relative;
    outline: 0
}

.book .book-body .page-wrapper .page-inner {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px 0 40px 0
}

.book .book-body .page-wrapper .page-inner section {
    margin: 0;
    padding: 5px 15px;
    background: #fff;
    border-radius: 2px;
    line-height: 1.6;
    font-size: 1.6rem
}

.book .book-body .page-wrapper .page-inner .btn-group .btn {
    border-radius: 0;
    background: #eee;
    border: 0
}

.book.without-animation .book-body {
    -webkit-transition: none !important;
    -moz-transition: none !important;
    -o-transition: none !important;
    transition: none !important
}

.book.color-theme-1 .book-body {
    color: #704214;
    background: #f3eacb
}

.book.color-theme-1 .book-body .page-wrapper .page-inner section {
    background: #f3eacb
}

.book.color-theme-2 .book-body {
    color: #bdcadb;
    background: #1c1f2b
}

.book.color-theme-2 .book-body .page-wrapper .page-inner section {
    background: #1c1f2b
}

.book.font-size-0 .book-body .page-inner section {
    font-size: 1.2rem
}

.book.font-size-1 .book-body .page-inner section {
    font-size: 1.4rem
}

.book.font-size-2 .book-body .page-inner section {
    font-size: 1.6rem
}

.book.font-size-3 .book-body .page-inner section {
    font-size: 2.2rem
}

.book.font-size-4 .book-body .page-inner section {
    font-size: 4rem
}

.buttons {
    *zoom: 1;
    padding: 5px
}

.buttons:before,
.buttons:after {
    content: " ";
    display: table;
    line-height: 0
}

.buttons:after {
    clear: both
}

.buttons:before,
.buttons:after {
    content: "";
    display: table
}

.buttons:after {
    clear: both
}

.button {
    border: 0;
    background-color: transparent;
    background: #eee;
    color: #666;
    width: 100%;
    text-align: center;
    float: left;
    line-height: 1.428571429;
    padding: 8px 4px
}

.button:hover {
    color: #444
}

.button:focus,
.button:hover {
    outline: 0
}

.button.size-2 {
    width: 50%
}

.button.size-3 {
    width: 33%
}

.book .book-body .page-wrapper .page-inner section {
    display: none
}

.book .book-body .page-wrapper .page-inner section.normal {
    -ms-text-size-adjust: 100%;
    -webkit-text-size-adjust: 100%;
    line-height: 1.4;
    color: #333;
    overflow: hidden;
    line-height: 1.6;
    //word-wrap: break-word;
    display: block
}

.book .book-body .page-wrapper .page-inner section.normal>*:first-child {
    margin-top: 0 !important
}

.book .book-body .page-wrapper .page-inner section.normal>*:last-child {
    margin-bottom: 0 !important
}

.book .book-body .page-wrapper .page-inner section.normal a {
    background: transparent
}

.book .book-body .page-wrapper .page-inner section.normal a:active,
.book .book-body .page-wrapper .page-inner section.normal a:hover {
    outline: 0
}

.book .book-body .page-wrapper .page-inner section.normal strong {
    font-weight: bold
}

.book .book-body .page-wrapper .page-inner section.normal h1 {
    font-size: 2em;
    margin: .67em 0
}

.book .book-body .page-wrapper .page-inner section.normal img {
    border: 0
}

.book .book-body .page-wrapper .page-inner section.normal hr {
    -moz-box-sizing: content-box;
    box-sizing: content-box;
    height: 0
}

.book .book-body .page-wrapper .page-inner section.normal pre {
    overflow: auto
}

.book .book-body .page-wrapper .page-inner section.normal code,
.book .book-body .page-wrapper .page-inner section.normal pre {
    font-size: 1em
}

.book .book-body .page-wrapper .page-inner section.normal table {
    border-collapse: collapse;
    border-spacing: 0
}

.book .book-body .page-wrapper .page-inner section.normal td,
.book .book-body .page-wrapper .page-inner section.normal th {
    padding: 0
}

.book .book-body .page-wrapper .page-inner section.normal * {
    -moz-box-sizing: border-box;
    box-sizing: border-box
}

.book .book-body .page-wrapper .page-inner section.normal a {
    color: #4183c4;
    text-decoration: none
}

.book .book-body .page-wrapper .page-inner section.normal a:hover,
.book .book-body .page-wrapper .page-inner section.normal a:focus,
.book .book-body .page-wrapper .page-inner section.normal a:active {
    text-decoration: underline
}

.book .book-body .page-wrapper .page-inner section.normal hr {
    height: 0;
    margin: 15px 0;
    overflow: hidden;
    background: transparent;
    border: 0;
    border-bottom: 1px solid #ddd
}

.book .book-body .page-wrapper .page-inner section.normal hr:before,
.book .book-body .page-wrapper .page-inner section.normal hr:after {
    display: table;
    content: " "
}

.book .book-body .page-wrapper .page-inner section.normal hr:after {
    clear: both
}

.book .book-body .page-wrapper .page-inner section.normal h1,
.book .book-body .page-wrapper .page-inner section.normal h2,
.book .book-body .page-wrapper .page-inner section.normal h3,
.book .book-body .page-wrapper .page-inner section.normal h4,
.book .book-body .page-wrapper .page-inner section.normal h5,
.book .book-body .page-wrapper .page-inner section.normal h6 {
    margin-top: 15px;
    margin-bottom: 15px;
    line-height: 1.1
}

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}

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}

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}

.book .book-body .navigation {
    position: absolute;
    top: 50px;
    bottom: 0;
    margin: 0;
    max-width: 150px;
    min-width: 90px;
    display: flex;
    justify-content: center;
    align-content: center;
    flex-direction: column;
    font-size: 40px;
    color: #ccc;
    text-align: center;
    -webkit-transition: all 350ms ease;
    -moz-transition: all 350ms ease;
    -o-transition: all 350ms ease;
    transition: all 350ms ease
}

.book .book-body .navigation:hover {
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}

.book .book-body .navigation.navigation-next {
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}

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}

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}

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}

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    color: #383f52
}

.book.color-theme-2 .book-body .navigation:hover {
    color: #fffff5
}

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}

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    text-decoration: none
}

.book .book-body .page-wrapper .page-inner section.glossary .glossary-index {
    list-style: none;
    margin: 0;
    padding: 0
}

.book .book-body .page-wrapper .page-inner section.glossary .glossary-index li {
    display: inline;
    margin: 0 8px;
    white-space: nowrap
}

.book .book-body .book-search-highlight {
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}

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    background-color: #ffff04
}

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}

* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    -webkit-overflow-scrolling: touch;
    -webkit-tap-highlight-color: transparent;
    -webkit-text-size-adjust: none;
    -webkit-touch-callout: none;
    -webkit-font-smoothing: antialiased
}

a {
    text-decoration: none
}

html,
body {
    height: 100%;
    overflow-y: hidden
}

html {
    font-size: 62.5%
}

body {
    text-rendering: optimizeLegibility;
    font-size: 14px
}