/*! normalize.css v2.1.0 | MIT License | git.io/normalize */

img,
legend {
	border: 0
}

*,
.fa {
	-webkit-font-smoothing: antialiased
}

.fa-ul>li,
sub,
sup {
	position: relative
}

.book .book-body .page-wrapper .page-inner section.normal hr:after,
.book-langs-index .inner .languages:after,
.buttons:after,
.dropdown-menu .buttons:after {
	clear: both
}

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

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

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

.hidden,
[hidden] {
	display: none
}

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

html {
	font-family: sans-serif
}

body,
figure {
	margin: 0
}

a:focus {
	outline: dotted thin
}

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

h1 {
	font-size: 2em;
	margin: .67em 0
}

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

b,
strong {
	font-weight: 700
}

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-family: monospace, serif;
	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;
	vertical-align: baseline
}

sup {
	top: -.5em
}

sub {
	bottom: -.25em
}

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

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

legend {
	padding: 0
}

button,
input,
select,
textarea {
	font-family: inherit;
	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 {
	margin-right: 10px;
}

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
}


/*!
 * Preboot v2
 *
 * Open sourced under MIT license by @mdo.
 * Some variables and mixins from Bootstrap (Apache 2 license).
 */

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

.fa,
.fa-stack {
	display: inline-block
}


/*!
 *  Font Awesome 4.7.0 by @davegandy - http://fontawesome.io - @fontawesome
 *  License - http://fontawesome.io/license (Font: SIL OFL 1.1, CSS: MIT License)
 */

@font-face {
	font-family: FontAwesome;
	src: url(https://bookdown.org/yihui/bookdown/libs/gitbook/css/fontawesome/fontawesome-webfont.ttf?v=4.7.0) format('truetype');
	font-weight: 400;
	font-style: normal
}

.fa {
	font-family: FontAwesome;
	font-style: normal;
	font-weight: 400;
	line-height: 1;
	-moz-osx-font-smoothing: grayscale
}

.book .book-header,
.book .book-summary {
	/*font-family: "Helvetica Neue", Helvetica, Arial, sans-serif*/
	font-family: 'Cairo', sans-serif;
}

.fa-lg {
	font-size: 1.33333333em;
	line-height: .75em;
	vertical-align: -15%
}

.fa-2x {
	font-size: 2em
}

.fa-3x {
	font-size: 3em
}

.fa-4x {
	font-size: 4em
}

.fa-5x {
	font-size: 5em
}

.fa-fw {
	width: 1.28571429em;
	text-align: center
}

.fa-ul {
	padding-left: 0;
	margin-left: 2.14285714em;
	list-style-type: none
}

.fa-li {
	position: absolute;
	left: -2.14285714em;
	width: 2.14285714em;
	top: .14285714em;
	text-align: center
}

.fa-li.fa-lg {
	left: -1.85714286em
}

.fa-border {
	padding: .2em .25em .15em;
	border: .08em solid #eee;
	border-radius: .1em
}

.pull-right {
	float: right
}

.pull-left {
	float: left
}

.fa.pull-left {
	margin-right: .3em
}

.fa.pull-right {
	margin-left: .3em
}

.fa-spin {
	-webkit-animation: spin 2s infinite linear;
	-moz-animation: spin 2s infinite linear;
	-o-animation: spin 2s infinite linear;
	animation: spin 2s infinite linear
}

@-moz-keyframes spin {
	0% {
		-moz-transform: rotate(0)
	}
	100% {
		-moz-transform: rotate(359deg)
	}
}

@-webkit-keyframes spin {
	0% {
		-webkit-transform: rotate(0)
	}
	100% {
		-webkit-transform: rotate(359deg)
	}
}

@-o-keyframes spin {
	0% {
		-o-transform: rotate(0)
	}
	100% {
		-o-transform: rotate(359deg)
	}
}

@keyframes spin {
	0% {
		-webkit-transform: rotate(0);
		transform: rotate(0)
	}
	100% {
		-webkit-transform: rotate(359deg);
		transform: rotate(359deg)
	}
}

.fa-rotate-90 {
	filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=1);
	-webkit-transform: rotate(90deg);
	-moz-transform: rotate(90deg);
	-ms-transform: rotate(90deg);
	-o-transform: rotate(90deg);
	transform: rotate(90deg)
}

.fa-rotate-180 {
	filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=2);
	-webkit-transform: rotate(180deg);
	-moz-transform: rotate(180deg);
	-ms-transform: rotate(180deg);
	-o-transform: rotate(180deg);
	transform: rotate(180deg)
}

.fa-rotate-270 {
	filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=3);
	-webkit-transform: rotate(270deg);
	-moz-transform: rotate(270deg);
	-ms-transform: rotate(270deg);
	-o-transform: rotate(270deg);
	transform: rotate(270deg)
}

.fa-flip-horizontal {
	filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=0, mirror=1);
	-webkit-transform: scale(-1, 1);
	-moz-transform: scale(-1, 1);
	-ms-transform: scale(-1, 1);
	-o-transform: scale(-1, 1);
	transform: scale(-1, 1)
}

.fa-flip-vertical {
	filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=2, mirror=1);
	-webkit-transform: scale(1, -1);
	-moz-transform: scale(1, -1);
	-ms-transform: scale(1, -1);
	-o-transform: scale(1, -1);
	transform: scale(1, -1)
}

.fa-stack {
	position: relative;
	width: 2em;
	height: 2em;
	line-height: 2em;
	vertical-align: middle
}

.fa-stack-1x,
.fa-stack-2x {
	position: absolute;
	left: 0;
	width: 100%;
	text-align: center
}

.fa-stack-1x {
	line-height: inherit
}

.fa-stack-2x {
	font-size: 2em
}

.fa-inverse {
	color: #fff
}

.fa-glass:before {
	content: "\f000"
}

.fa-music:before {
	content: "\f001"
}

.fa-search:before {
	content: "\f002"
}

.fa-envelope-o:before {
	content: "\f003"
}

.fa-heart:before {
	content: "\f004"
}

.fa-star:before {
	content: "\f005"
}

.fa-star-o:before {
	content: "\f006"
}

.fa-user:before {
	content: "\f007"
}

.fa-film:before {
	content: "\f008"
}

.fa-th-large:before {
	content: "\f009"
}

.fa-th:before {
	content: "\f00a"
}

.fa-th-list:before {
	content: "\f00b"
}

.fa-check:before {
	content: "\f00c"
}

.fa-times:before {
	content: "\f00d"
}

.fa-search-plus:before {
	content: "\f00e"
}

.fa-search-minus:before {
	content: "\f010"
}

.fa-power-off:before {
	content: "\f011"
}

.fa-signal:before {
	content: "\f012"
}

.fa-cog:before,
.fa-gear:before {
	content: "\f013"
}

.fa-trash-o:before {
	content: "\f014"
}

.fa-home:before {
	content: "\f015"
}

.fa-file-o:before {
	content: "\f016"
}

.fa-clock-o:before {
	content: "\f017"
}

.fa-road:before {
	content: "\f018"
}

.fa-download:before {
	content: "\f019"
}

.fa-arrow-circle-o-down:before {
	content: "\f01a"
}

.fa-arrow-circle-o-up:before {
	content: "\f01b"
}

.fa-inbox:before {
	content: "\f01c"
}

.fa-play-circle-o:before {
	content: "\f01d"
}

.fa-repeat:before,
.fa-rotate-right:before {
	content: "\f01e"
}

.fa-refresh:before {
	content: "\f021"
}

.fa-list-alt:before {
	content: "\f022"
}

.fa-lock:before {
	content: "\f023"
}

.fa-flag:before {
	content: "\f024"
}

.fa-headphones:before {
	content: "\f025"
}

.fa-volume-off:before {
	content: "\f026"
}

.fa-volume-down:before {
	content: "\f027"
}

.fa-volume-up:before {
	content: "\f028"
}

.fa-qrcode:before {
	content: "\f029"
}

.fa-barcode:before {
	content: "\f02a"
}

.fa-tag:before {
	content: "\f02b"
}

.fa-tags:before {
	content: "\f02c"
}

.fa-book:before {
	content: "\f02d"
}

.fa-bookmark:before {
	content: "\f02e"
}

.fa-print:before {
	content: "\f02f"
}

.fa-camera:before {
	content: "\f030"
}

.fa-font:before {
	content: "\f031"
}

.fa-bold:before {
	content: "\f032"
}

.fa-italic:before {
	content: "\f033"
}

.fa-text-height:before {
	content: "\f034"
}

.fa-text-width:before {
	content: "\f035"
}

.fa-align-left:before {
	content: "\f036"
}

.fa-align-center:before {
	content: "\f037"
}

.fa-align-right:before {
	content: "\f038"
}

.fa-align-justify:before {
	content: "\f039"
}

.fa-list:before {
	content: "\f03a"
}

.fa-dedent:before,
.fa-outdent:before {
	content: "\f03b"
}

.fa-indent:before {
	content: "\f03c"
}

.fa-video-camera:before {
	content: "\f03d"
}

.fa-image:before,
.fa-photo:before,
.fa-picture-o:before {
	content: "\f03e"
}

.fa-pencil:before {
	content: "\f040"
}

.fa-map-marker:before {
	content: "\f041"
}

.fa-adjust:before {
	content: "\f042"
}

.fa-tint:before {
	content: "\f043"
}

.fa-edit:before,
.fa-pencil-square-o:before {
	content: "\f044"
}

.fa-share-square-o:before {
	content: "\f045"
}

.fa-check-square-o:before {
	content: "\f046"
}

.fa-arrows:before {
	content: "\f047"
}

.fa-step-backward:before {
	content: "\f048"
}

.fa-fast-backward:before {
	content: "\f049"
}

.fa-backward:before {
	content: "\f04a"
}

.fa-play:before {
	content: "\f04b"
}

.fa-pause:before {
	content: "\f04c"
}

.fa-stop:before {
	content: "\f04d"
}

.fa-forward:before {
	content: "\f04e"
}

.fa-fast-forward:before {
	content: "\f050"
}

.fa-step-forward:before {
	content: "\f051"
}

.fa-eject:before {
	content: "\f052"
}

.fa-chevron-left:before {
	content: "\f053"
}

.fa-chevron-right:before {
	content: "\f054"
}

.fa-plus-circle:before {
	content: "\f055"
}

.fa-minus-circle:before {
	content: "\f056"
}

.fa-times-circle:before {
	content: "\f057"
}

.fa-check-circle:before {
	content: "\f058"
}

.fa-question-circle:before {
	content: "\f059"
}

.fa-info-circle:before {
	content: "\f05a"
}

.fa-crosshairs:before {
	content: "\f05b"
}

.fa-times-circle-o:before {
	content: "\f05c"
}

.fa-check-circle-o:before {
	content: "\f05d"
}

.fa-ban:before {
	content: "\f05e"
}

.fa-arrow-left:before {
	content: "\f060"
}

.fa-arrow-right:before {
	content: "\f061"
}

.fa-arrow-up:before {
	content: "\f062"
}

.fa-arrow-down:before {
	content: "\f063"
}

.fa-mail-forward:before,
.fa-share:before {
	content: "\f064"
}

.fa-expand:before {
	content: "\f065"
}

.fa-compress:before {
	content: "\f066"
}

.fa-plus:before {
	content: "\f067"
}

.fa-minus:before {
	content: "\f068"
}

.fa-asterisk:before {
	content: "\f069"
}

.fa-exclamation-circle:before {
	content: "\f06a"
}

.fa-gift:before {
	content: "\f06b"
}

.fa-leaf:before {
	content: "\f06c"
}

.fa-fire:before {
	content: "\f06d"
}

.fa-eye:before {
	content: "\f06e"
}

.fa-eye-slash:before {
	content: "\f070"
}

.fa-exclamation-triangle:before,
.fa-warning:before {
	content: "\f071"
}

.fa-plane:before {
	content: "\f072"
}

.fa-calendar:before {
	content: "\f073"
}

.fa-random:before {
	content: "\f074"
}

.fa-comment:before {
	content: "\f075"
}

.fa-magnet:before {
	content: "\f076"
}

.fa-chevron-up:before {
	content: "\f077"
}

.fa-chevron-down:before {
	content: "\f078"
}

.fa-retweet:before {
	content: "\f079"
}

.fa-shopping-cart:before {
	content: "\f07a"
}

.fa-folder:before {
	content: "\f07b"
}

.fa-folder-open:before {
	content: "\f07c"
}

.fa-arrows-v:before {
	content: "\f07d"
}

.fa-arrows-h:before {
	content: "\f07e"
}

.fa-bar-chart-o:before {
	content: "\f080"
}

.fa-twitter-square:before {
	content: "\f081"
}

.fa-facebook-square:before {
	content: "\f082"
}

.fa-camera-retro:before {
	content: "\f083"
}

.fa-key:before {
	content: "\f084"
}

.fa-cogs:before,
.fa-gears:before {
	content: "\f085"
}

.fa-comments:before {
	content: "\f086"
}

.fa-thumbs-o-up:before {
	content: "\f087"
}

.fa-thumbs-o-down:before {
	content: "\f088"
}

.fa-star-half:before {
	content: "\f089"
}

.fa-heart-o:before {
	content: "\f08a"
}

.fa-sign-out:before {
	content: "\f08b"
}

.fa-linkedin-square:before {
	content: "\f08c"
}

.fa-thumb-tack:before {
	content: "\f08d"
}

.fa-external-link:before {
	content: "\f08e"
}

.fa-sign-in:before {
	content: "\f090"
}

.fa-trophy:before {
	content: "\f091"
}

.fa-github-square:before {
	content: "\f092"
}

.fa-upload:before {
	content: "\f093"
}

.fa-lemon-o:before {
	content: "\f094"
}

.fa-phone:before {
	content: "\f095"
}

.fa-square-o:before {
	content: "\f096"
}

.fa-bookmark-o:before {
	content: "\f097"
}

.fa-phone-square:before {
	content: "\f098"
}

.fa-twitter:before {
	content: "\f099"
}

.fa-facebook:before {
	content: "\f09a"
}

.fa-github:before {
	content: "\f09b"
}

.fa-unlock:before {
	content: "\f09c"
}

.fa-credit-card:before {
	content: "\f09d"
}

.fa-rss:before {
	content: "\f09e"
}

.fa-hdd-o:before {
	content: "\f0a0"
}

.fa-bullhorn:before {
	content: "\f0a1"
}

.fa-bell:before {
	content: "\f0f3"
}

.fa-certificate:before {
	content: "\f0a3"
}

.fa-hand-o-right:before {
	content: "\f0a4"
}

.fa-hand-o-left:before {
	content: "\f0a5"
}

.fa-hand-o-up:before {
	content: "\f0a6"
}

.fa-hand-o-down:before {
	content: "\f0a7"
}

.fa-arrow-circle-left:before {
	content: "\f0a8"
}

.fa-arrow-circle-right:before {
	content: "\f0a9"
}

.fa-arrow-circle-up:before {
	content: "\f0aa"
}

.fa-arrow-circle-down:before {
	content: "\f0ab"
}

.fa-globe:before {
	content: "\f0ac"
}

.fa-wrench:before {
	content: "\f0ad"
}

.fa-tasks:before {
	content: "\f0ae"
}

.fa-filter:before {
	content: "\f0b0"
}

.fa-briefcase:before {
	content: "\f0b1"
}

.fa-arrows-alt:before {
	content: "\f0b2"
}

.fa-group:before,
.fa-users:before {
	content: "\f0c0"
}

.fa-chain:before,
.fa-link:before {
	content: "\f0c1"
}

.fa-cloud:before {
	content: "\f0c2"
}

.fa-flask:before {
	content: "\f0c3"
}

.fa-cut:before,
.fa-scissors:before {
	content: "\f0c4"
}

.fa-copy:before,
.fa-files-o:before {
	content: "\f0c5"
}

.fa-paperclip:before {
	content: "\f0c6"
}

.fa-floppy-o:before,
.fa-save:before {
	content: "\f0c7"
}

.fa-square:before {
	content: "\f0c8"
}

.fa-bars:before,
.fa-navicon:before,
.fa-reorder:before {
	content: "\f0c9"
}

.fa-list-ul:before {
	content: "\f0ca"
}

.fa-list-ol:before {
	content: "\f0cb"
}

.fa-strikethrough:before {
	content: "\f0cc"
}

.fa-underline:before {
	content: "\f0cd"
}

.fa-table:before {
	content: "\f0ce"
}

.fa-magic:before {
	content: "\f0d0"
}

.fa-truck:before {
	content: "\f0d1"
}

.fa-pinterest:before {
	content: "\f0d2"
}

.fa-pinterest-square:before {
	content: "\f0d3"
}

.fa-google-plus-square:before {
	content: "\f0d4"
}

.fa-google-plus:before {
	content: "\f0d5"
}

.fa-money:before {
	content: "\f0d6"
}

.fa-caret-down:before {
	content: "\f0d7"
}

.fa-caret-up:before {
	content: "\f0d8"
}

.fa-caret-left:before {
	content: "\f0d9"
}

.fa-caret-right:before {
	content: "\f0da"
}

.fa-columns:before {
	content: "\f0db"
}

.fa-sort:before,
.fa-unsorted:before {
	content: "\f0dc"
}

.fa-sort-desc:before,
.fa-sort-down:before {
	content: "\f0dd"
}

.fa-sort-asc:before,
.fa-sort-up:before {
	content: "\f0de"
}

.fa-envelope:before {
	content: "\f0e0"
}

.fa-linkedin:before {
	content: "\f0e1"
}

.fa-rotate-left:before,
.fa-undo:before {
	content: "\f0e2"
}

.fa-gavel:before,
.fa-legal:before {
	content: "\f0e3"
}

.fa-dashboard:before,
.fa-tachometer:before {
	content: "\f0e4"
}

.fa-comment-o:before {
	content: "\f0e5"
}

.fa-comments-o:before {
	content: "\f0e6"
}

.fa-bolt:before,
.fa-flash:before {
	content: "\f0e7"
}

.fa-sitemap:before {
	content: "\f0e8"
}

.fa-umbrella:before {
	content: "\f0e9"
}

.fa-clipboard:before,
.fa-paste:before {
	content: "\f0ea"
}

.fa-lightbulb-o:before {
	content: "\f0eb"
}

.fa-exchange:before {
	content: "\f0ec"
}

.fa-cloud-download:before {
	content: "\f0ed"
}

.fa-cloud-upload:before {
	content: "\f0ee"
}

.fa-user-md:before {
	content: "\f0f0"
}

.fa-stethoscope:before {
	content: "\f0f1"
}

.fa-suitcase:before {
	content: "\f0f2"
}

.fa-bell-o:before {
	content: "\f0a2"
}

.fa-coffee:before {
	content: "\f0f4"
}

.fa-cutlery:before {
	content: "\f0f5"
}

.fa-file-text-o:before {
	content: "\f0f6"
}

.fa-building-o:before {
	content: "\f0f7"
}

.fa-hospital-o:before {
	content: "\f0f8"
}

.fa-ambulance:before {
	content: "\f0f9"
}

.fa-medkit:before {
	content: "\f0fa"
}

.fa-fighter-jet:before {
	content: "\f0fb"
}

.fa-beer:before {
	content: "\f0fc"
}

.fa-h-square:before {
	content: "\f0fd"
}

.fa-plus-square:before {
	content: "\f0fe"
}

.fa-angle-double-left:before {
	content: "\f100"
}

.fa-angle-double-right:before {
	content: "\f101"
}

.fa-angle-double-up:before {
	content: "\f102"
}

.fa-angle-double-down:before {
	content: "\f103"
}

.fa-angle-left:before {
	content: "\f104"
}

.fa-angle-right:before {
	content: "\f105"
}

.fa-angle-up:before {
	content: "\f106"
}

.fa-angle-down:before {
	content: "\f107"
}

.fa-desktop:before {
	content: "\f108"
}

.fa-laptop:before {
	content: "\f109"
}

.fa-tablet:before {
	content: "\f10a"
}

.fa-mobile-phone:before,
.fa-mobile:before {
	content: "\f10b"
}

.fa-circle-o:before {
	content: "\f10c"
}

.fa-quote-left:before {
	content: "\f10d"
}

.fa-quote-right:before {
	content: "\f10e"
}

.fa-spinner:before {
	content: "\f110"
}

.fa-circle:before {
	content: "\f111"
}

.fa-mail-reply:before,
.fa-reply:before {
	content: "\f112"
}

.fa-github-alt:before {
	content: "\f113"
}

.fa-folder-o:before {
	content: "\f114"
}

.fa-folder-open-o:before {
	content: "\f115"
}

.fa-smile-o:before {
	content: "\f118"
}

.fa-frown-o:before {
	content: "\f119"
}

.fa-meh-o:before {
	content: "\f11a"
}

.fa-gamepad:before {
	content: "\f11b"
}

.fa-keyboard-o:before {
	content: "\f11c"
}

.fa-flag-o:before {
	content: "\f11d"
}

.fa-flag-checkered:before {
	content: "\f11e"
}

.fa-terminal:before {
	content: "\f120"
}

.fa-code:before {
	content: "\f121"
}

.fa-mail-reply-all:before,
.fa-reply-all:before {
	content: "\f122"
}

.fa-star-half-empty:before,
.fa-star-half-full:before,
.fa-star-half-o:before {
	content: "\f123"
}

.fa-location-arrow:before {
	content: "\f124"
}

.fa-crop:before {
	content: "\f125"
}

.fa-code-fork:before {
	content: "\f126"
}

.fa-chain-broken:before,
.fa-unlink:before {
	content: "\f127"
}

.fa-question:before {
	content: "\f128"
}

.fa-info:before {
	content: "\f129"
}

.fa-exclamation:before {
	content: "\f12a"
}

.fa-superscript:before {
	content: "\f12b"
}

.fa-subscript:before {
	content: "\f12c"
}

.fa-eraser:before {
	content: "\f12d"
}

.fa-puzzle-piece:before {
	content: "\f12e"
}

.fa-microphone:before {
	content: "\f130"
}

.fa-microphone-slash:before {
	content: "\f131"
}

.fa-shield:before {
	content: "\f132"
}

.fa-calendar-o:before {
	content: "\f133"
}

.fa-fire-extinguisher:before {
	content: "\f134"
}

.fa-rocket:before {
	content: "\f135"
}

.fa-maxcdn:before {
	content: "\f136"
}

.fa-chevron-circle-left:before {
	content: "\f137"
}

.fa-chevron-circle-right:before {
	content: "\f138"
}

.fa-chevron-circle-up:before {
	content: "\f139"
}

.fa-chevron-circle-down:before {
	content: "\f13a"
}

.fa-html5:before {
	content: "\f13b"
}

.fa-css3:before {
	content: "\f13c"
}

.fa-anchor:before {
	content: "\f13d"
}

.fa-unlock-alt:before {
	content: "\f13e"
}

.fa-bullseye:before {
	content: "\f140"
}

.fa-ellipsis-h:before {
	content: "\f141"
}

.fa-ellipsis-v:before {
	content: "\f142"
}

.fa-rss-square:before {
	content: "\f143"
}

.fa-play-circle:before {
	content: "\f144"
}

.fa-ticket:before {
	content: "\f145"
}

.fa-minus-square:before {
	content: "\f146"
}

.fa-minus-square-o:before {
	content: "\f147"
}

.fa-level-up:before {
	content: "\f148"
}

.fa-level-down:before {
	content: "\f149"
}

.fa-check-square:before {
	content: "\f14a"
}

.fa-pencil-square:before {
	content: "\f14b"
}

.fa-external-link-square:before {
	content: "\f14c"
}

.fa-share-square:before {
	content: "\f14d"
}

.fa-compass:before {
	content: "\f14e"
}

.fa-caret-square-o-down:before,
.fa-toggle-down:before {
	content: "\f150"
}

.fa-caret-square-o-up:before,
.fa-toggle-up:before {
	content: "\f151"
}

.fa-caret-square-o-right:before,
.fa-toggle-right:before {
	content: "\f152"
}

.fa-eur:before,
.fa-euro:before {
	content: "\f153"
}

.fa-gbp:before {
	content: "\f154"
}

.fa-dollar:before,
.fa-usd:before {
	content: "\f155"
}

.fa-inr:before,
.fa-rupee:before {
	content: "\f156"
}

.fa-cny:before,
.fa-jpy:before,
.fa-rmb:before,
.fa-yen:before {
	content: "\f157"
}

.fa-rouble:before,
.fa-rub:before,
.fa-ruble:before {
	content: "\f158"
}

.fa-krw:before,
.fa-won:before {
	content: "\f159"
}

.fa-bitcoin:before,
.fa-btc:before {
	content: "\f15a"
}

.fa-file:before {
	content: "\f15b"
}

.fa-file-text:before {
	content: "\f15c"
}

.fa-sort-alpha-asc:before {
	content: "\f15d"
}

.fa-sort-alpha-desc:before {
	content: "\f15e"
}

.fa-sort-amount-asc:before {
	content: "\f160"
}

.fa-sort-amount-desc:before {
	content: "\f161"
}

.fa-sort-numeric-asc:before {
	content: "\f162"
}

.fa-sort-numeric-desc:before {
	content: "\f163"
}

.fa-thumbs-up:before {
	content: "\f164"
}

.fa-thumbs-down:before {
	content: "\f165"
}

.fa-youtube-square:before {
	content: "\f166"
}

.fa-youtube:before {
	content: "\f167"
}

.fa-xing:before {
	content: "\f168"
}

.fa-xing-square:before {
	content: "\f169"
}

.fa-youtube-play:before {
	content: "\f16a"
}

.fa-dropbox:before {
	content: "\f16b"
}

.fa-stack-overflow:before {
	content: "\f16c"
}

.fa-instagram:before {
	content: "\f16d"
}

.fa-flickr:before {
	content: "\f16e"
}

.fa-adn:before {
	content: "\f170"
}

.fa-bitbucket:before {
	content: "\f171"
}

.fa-bitbucket-square:before {
	content: "\f172"
}

.fa-tumblr:before {
	content: "\f173"
}

.fa-tumblr-square:before {
	content: "\f174"
}

.fa-long-arrow-down:before {
	content: "\f175"
}

.fa-long-arrow-up:before {
	content: "\f176"
}

.fa-long-arrow-left:before {
	content: "\f177"
}

.fa-long-arrow-right:before {
	content: "\f178"
}

.fa-apple:before {
	content: "\f179"
}

.fa-windows:before {
	content: "\f17a"
}

.fa-android:before {
	content: "\f17b"
}

.fa-linux:before {
	content: "\f17c"
}

.fa-dribbble:before {
	content: "\f17d"
}

.fa-skype:before {
	content: "\f17e"
}

.fa-foursquare:before {
	content: "\f180"
}

.fa-trello:before {
	content: "\f181"
}

.fa-female:before {
	content: "\f182"
}

.fa-male:before {
	content: "\f183"
}

.fa-gittip:before {
	content: "\f184"
}

.fa-sun-o:before {
	content: "\f185"
}

.fa-moon-o:before {
	content: "\f186"
}

.fa-archive:before {
	content: "\f187"
}

.fa-bug:before {
	content: "\f188"
}

.fa-vk:before {
	content: "\f189"
}

.fa-weibo:before {
	content: "\f18a"
}

.fa-renren:before {
	content: "\f18b"
}

.fa-pagelines:before {
	content: "\f18c"
}

.fa-stack-exchange:before {
	content: "\f18d"
}

.fa-arrow-circle-o-right:before {
	content: "\f18e"
}

.fa-arrow-circle-o-left:before {
	content: "\f190"
}

.fa-caret-square-o-left:before,
.fa-toggle-left:before {
	content: "\f191"
}

.fa-dot-circle-o:before {
	content: "\f192"
}

.fa-wheelchair:before {
	content: "\f193"
}

.fa-vimeo-square:before {
	content: "\f194"
}

.fa-try:before,
.fa-turkish-lira:before {
	content: "\f195"
}

.fa-plus-square-o:before {
	content: "\f196"
}

.fa-space-shuttle:before {
	content: "\f197"
}

.fa-slack:before {
	content: "\f198"
}

.fa-envelope-square:before {
	content: "\f199"
}

.fa-wordpress:before {
	content: "\f19a"
}

.fa-openid:before {
	content: "\f19b"
}

.fa-bank:before,
.fa-institution:before,
.fa-university:before {
	content: "\f19c"
}

.fa-graduation-cap:before,
.fa-mortar-board:before {
	content: "\f19d"
}

.fa-yahoo:before {
	content: "\f19e"
}

.fa-google:before {
	content: "\f1a0"
}

.fa-reddit:before {
	content: "\f1a1"
}

.fa-reddit-square:before {
	content: "\f1a2"
}

.fa-stumbleupon-circle:before {
	content: "\f1a3"
}

.fa-stumbleupon:before {
	content: "\f1a4"
}

.fa-delicious:before {
	content: "\f1a5"
}

.fa-digg:before {
	content: "\f1a6"
}

.fa-pied-piper-square:before,
.fa-pied-piper:before {
	content: "\f1a7"
}

.fa-pied-piper-alt:before {
	content: "\f1a8"
}

.fa-drupal:before {
	content: "\f1a9"
}

.fa-joomla:before {
	content: "\f1aa"
}

.fa-language:before {
	content: "\f1ab"
}

.fa-fax:before {
	content: "\f1ac"
}

.fa-building:before {
	content: "\f1ad"
}

.fa-child:before {
	content: "\f1ae"
}

.fa-paw:before {
	content: "\f1b0"
}

.fa-spoon:before {
	content: "\f1b1"
}

.fa-cube:before {
	content: "\f1b2"
}

.fa-cubes:before {
	content: "\f1b3"
}

.fa-behance:before {
	content: "\f1b4"
}

.fa-behance-square:before {
	content: "\f1b5"
}

.fa-steam:before {
	content: "\f1b6"
}

.fa-steam-square:before {
	content: "\f1b7"
}

.fa-recycle:before {
	content: "\f1b8"
}

.fa-automobile:before,
.fa-car:before {
	content: "\f1b9"
}

.fa-cab:before,
.fa-taxi:before {
	content: "\f1ba"
}

.fa-tree:before {
	content: "\f1bb"
}

.fa-spotify:before {
	content: "\f1bc"
}

.fa-deviantart:before {
	content: "\f1bd"
}

.fa-soundcloud:before {
	content: "\f1be"
}

.fa-database:before {
	content: "\f1c0"
}

.fa-file-pdf-o:before {
	content: "\f1c1"
}

.fa-file-word-o:before {
	content: "\f1c2"
}

.fa-file-excel-o:before {
	content: "\f1c3"
}

.fa-file-powerpoint-o:before {
	content: "\f1c4"
}

.fa-file-image-o:before,
.fa-file-photo-o:before,
.fa-file-picture-o:before {
	content: "\f1c5"
}

.fa-file-archive-o:before,
.fa-file-zip-o:before {
	content: "\f1c6"
}

.fa-file-audio-o:before,
.fa-file-sound-o:before {
	content: "\f1c7"
}

.fa-file-movie-o:before,
.fa-file-video-o:before {
	content: "\f1c8"
}

.fa-file-code-o:before {
	content: "\f1c9"
}

.fa-vine:before {
	content: "\f1ca"
}

.fa-codepen:before {
	content: "\f1cb"
}

.fa-jsfiddle:before {
	content: "\f1cc"
}

.fa-life-bouy:before,
.fa-life-ring:before,
.fa-life-saver:before,
.fa-support:before {
	content: "\f1cd"
}

.fa-circle-o-notch:before {
	content: "\f1ce"
}

.fa-ra:before,
.fa-rebel:before {
	content: "\f1d0"
}

.fa-empire:before,
.fa-ge:before {
	content: "\f1d1"
}

.fa-git-square:before {
	content: "\f1d2"
}

.fa-git:before {
	content: "\f1d3"
}

.fa-hacker-news:before {
	content: "\f1d4"
}

.fa-tencent-weibo:before {
	content: "\f1d5"
}

.fa-qq:before {
	content: "\f1d6"
}

.fa-wechat:before,
.fa-weixin:before {
	content: "\f1d7"
}

.fa-paper-plane:before,
.fa-send:before {
	content: "\f1d8"
}

.fa-paper-plane-o:before,
.fa-send-o:before {
	content: "\f1d9"
}

.fa-history:before {
	content: "\f1da"
}

.fa-circle-thin:before {
	content: "\f1db"
}

.fa-header:before {
	content: "\f1dc"
}

.fa-paragraph:before {
	content: "\f1dd"
}

.fa-sliders:before {
	content: "\f1de"
}

.fa-share-alt:before {
	content: "\f1e0"
}

.fa-share-alt-square:before {
	content: "\f1e1"
}

.fa-bomb:before {
	content: "\f1e2"
}

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

@media (max-width:600px) {
	.book-langs-index {
		padding: 0
	}
}

.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
}

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

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

@media (max-width:600px) {
	.book-langs-index .inner .languages li {
		width: 100%;
		max-width: 100%
	}
}

.book .book-header {
	overflow: visible;
	height: 50px;
	padding: 0 8px;
	z-index: 2;
	font-size: .85em;
	color: #7e888b;
	background: 0 0
}

.book .book-header .btn {
	display: block;
	height: 50px;
	padding: 0 15px;
	border-bottom: none;
	color: #ccc;
	text-transform: uppercase;
	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 0
}

.book .book-header h1 {
	margin: 0;
	font-size: 20px;
	font-weight: 200;
	text-align: center;
	line-height: 50px;
	opacity: 0;
	padding-left: 200px;
	padding-right: 200px;
	-webkit-transition: opacity .2s ease;
	-moz-transition: opacity .2s ease;
	-o-transition: opacity .2s ease;
	transition: opacity .2s ease;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap
}

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

@media (max-width:1000px) {
	.book .book-header h1 {
		display: 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
}

.dropdown {
	position: relative
}

.dropdown-menu {
	position: absolute;
	top: 100%;
	left: 0;
	z-index: 100;
	display: none;
	float: left;
	min-width: 160px;
	padding: 0;
	margin: 2px 0 0;
	list-style: none;
	font-size: 14px;
	background-color: #fafafa;
	border: 1px solid rgba(0, 0, 0, .07);
	border-radius: 1px;
	-webkit-box-shadow: 0 6px 12px rgba(0, 0, 0, .175);
	box-shadow: 0 6px 12px rgba(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-inner,
.dropdown-menu .dropdown-caret .caret-outer {
	display: inline-block;
	top: 0;
	border-left: 9px solid transparent;
	border-right: 9px solid transparent;
	position: absolute
}

.dropdown-menu .dropdown-caret .caret-outer {
	border-bottom: 9px solid rgba(0, 0, 0, .1);
	height: auto;
	left: 0;
	width: auto;
	margin-left: -1px
}

.dropdown-menu .dropdown-caret .caret-inner {
	margin-top: -1px;
	top: 1px;
	border-bottom: 9px solid #fafafa
}

.dropdown-menu .buttons {
	border-bottom: 1px solid rgba(0, 0, 0, .07)
}

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

.dropdown-menu .buttons:last-child {
	border-bottom: none
}

.dropdown-menu .buttons .button {
	border: 0;
	background-color: transparent;
	color: #a6a6a6;
	width: 100%;
	text-align: center;
	float: left;
	line-height: 1.42857143;
	padding: 8px 4px
}

.alert,
.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%
}

.alert {
	padding: 15px;
	margin-bottom: 20px;
	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;
	right: -370px;
	bottom: 0;
	z-index: 1;
	width: 370px;
	color: #ffffff;
	background: #192f59;
	border-right: 1px solid rgba(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 ul.summary {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	overflow-y: auto;
	list-style: none;
	margin: 0;
	padding: 0;
	-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;
	padding: 1.5px 0;
	overflow: hidden;
	background: #51be78;
}

.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: 400
}

.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;
	color: #ffffff;
	background: 0 0;
	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 a:hover,
.book .book-summary ul.summary li.active>a {
	color: #51be78;
	background: 0 0;
	text-decoration: none
}

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

@media (max-width:600px) {
	.book .book-summary {
		width: calc(100% - 60px);
		bottom: 0;
		left: -100%
	}
}

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

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

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

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

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

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

.book .book-body .page-wrapper .page-inner section {
	margin: 0;
	padding: 5px 15px;
	background: #fff;
	border-radius: 2px;
	line-height: 1.7;
	font-size: 1.6rem
}

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

@media (max-width:1240px) {
	.book .book-body {
		-webkit-transition: -webkit-transform 250ms ease;
		-moz-transition: -moz-transform 250ms ease;
		-o-transition: -o-transform 250ms ease;
		transition: transform 250ms ease;
		padding-bottom: 20px
	}
	.book .book-body .body-inner {
		position: static;
		min-height: calc(100% - 50px)
	}
}

@media (min-width:600px) {
	.book.with-summary .book-body {
		right: 370px
	}
}

@media (max-width:600px) {
	.book.with-summary {
		overflow: hidden
	}
	.book.with-summary .book-body {
		-webkit-transform: translate(calc(100% - 60px), 0);
		-moz-transform: translate(calc(100% - 60px), 0);
		-ms-transform: translate(calc(100% - 60px), 0);
		-o-transform: translate(calc(100% - 60px), 0);
		transform: translate(calc(100% - 60px), 0)
	}
}

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

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

.button {
	border: 0;
	background: #eee;
	color: #666;
	width: 100%;
	text-align: center;
	float: left;
	line-height: 1.42857143;
	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 {
	display: block;
	word-wrap: break-word;
	overflow: hidden;
	color: #333;
	line-height: 1.7;
	text-size-adjust: 100%;
	-ms-text-size-adjust: 100%;
	-webkit-text-size-adjust: 100%;
	-moz-text-size-adjust: 100%
}

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

.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 blockquote,
.book .book-body .page-wrapper .page-inner section.normal code,
.book .book-body .page-wrapper .page-inner section.normal figure,
.book .book-body .page-wrapper .page-inner section.normal img,
.book .book-body .page-wrapper .page-inner section.normal pre,
.book .book-body .page-wrapper .page-inner section.normal table,
.book .book-body .page-wrapper .page-inner section.normal tr {
	page-break-inside: avoid
}

.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 p {
	orphans: 3;
	widows: 3
}

.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 {
	page-break-after: avoid
}

.book .book-body .page-wrapper .page-inner section.normal b,
.book .book-body .page-wrapper .page-inner section.normal strong {
	font-weight: 700
}

.book .book-body .page-wrapper .page-inner section.normal em {
	font-style: italic
}

.book .book-body .page-wrapper .page-inner section.normal blockquote,
.book .book-body .page-wrapper .page-inner section.normal dl,
.book .book-body .page-wrapper .page-inner section.normal ol,
.book .book-body .page-wrapper .page-inner section.normal p,
.book .book-body .page-wrapper .page-inner section.normal table,
.book .book-body .page-wrapper .page-inner section.normal ul {
	margin-top: 0;
	margin-bottom: .85em
}

.book .book-body .page-wrapper .page-inner section.normal a {
	color: #4183c4;
	text-decoration: none;
	background: 0 0
}

.book .book-body .page-wrapper .page-inner section.normal a:active,
.book .book-body .page-wrapper .page-inner section.normal a:focus,
.book .book-body .page-wrapper .page-inner section.normal a:hover {
	outline: 0;
	text-decoration: underline
}

.book .book-body .page-wrapper .page-inner section.normal img {
	border: 0;
	max-width: 100%
}

.book .book-body .page-wrapper .page-inner section.normal hr {
	height: 4px;
	padding: 0;
	margin: 1.7em 0;
	overflow: hidden;
	background-color: #e7e7e7;
	border: none
}

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

.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: 1.275em;
	margin-bottom: .85em;
}

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

.book .book-body .page-wrapper .page-inner section.normal h2 {
	font-size: 1.75em
}

.book .book-body .page-wrapper .page-inner section.normal h3 {
	font-size: 1.5em
}

.book .book-body .page-wrapper .page-inner section.normal h4 {
	font-size: 1.25em
}

.book .book-body .page-wrapper .page-inner section.normal h5 {
	font-size: 1em
}

.book .book-body .page-wrapper .page-inner section.normal h6 {
	font-size: 1em;
	color: #777
}

.book .book-body .page-wrapper .page-inner section.normal code,
.book .book-body .page-wrapper .page-inner section.normal pre {
	font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace;
	direction: ltr;
	border: none;
	color: inherit
}

.book .book-body .page-wrapper .page-inner section.normal pre {
	overflow: auto;
	word-wrap: normal;
	margin: 0 0 1.275em;
	padding: .85em 1em;
	background: #f7f7f7
}

.book .book-body .page-wrapper .page-inner section.normal pre>code {
	display: inline;
	max-width: initial;
	padding: 0;
	margin: 0;
	overflow: initial;
	line-height: inherit;
	font-size: .85em;
	white-space: pre;
	background: 0 0
}

.book .book-body .page-wrapper .page-inner section.normal pre>code:after,
.book .book-body .page-wrapper .page-inner section.normal pre>code:before {
	content: normal
}

.book .book-body .page-wrapper .page-inner section.normal code {
	padding: .2em;
	margin: 0;
	font-size: .85em;
	background-color: #f7f7f7
}

.book .book-body .page-wrapper .page-inner section.normal code:after,
.book .book-body .page-wrapper .page-inner section.normal code:before {
	letter-spacing: -.2em;
	content: "\00a0"
}


.book .book-body .page-wrapper .page-inner section.normal ol ol,
.book .book-body .page-wrapper .page-inner section.normal ol ul,
.book .book-body .page-wrapper .page-inner section.normal ul ol,
.book .book-body .page-wrapper .page-inner section.normal ul ul {
	margin-top: 0;
	margin-bottom: 0
}


.book .book-body .page-wrapper .page-inner section.normal blockquote {
	margin: 0 0 .85em;
	padding: 0 15px;
	opacity: 0.75;
	border-left: 4px solid #dcdcdc
}

.book .book-body .page-wrapper .page-inner section.normal blockquote:first-child {
	margin-top: 0
}

.book .book-body .page-wrapper .page-inner section.normal blockquote:last-child {
	margin-bottom: 0
}

.book .book-body .page-wrapper .page-inner section.normal dl {
	padding: 0
}

.book .book-body .page-wrapper .page-inner section.normal dl dt {
	padding: 0;
	margin-top: .85em;
	font-style: italic;
	font-weight: 700
}

.book .book-body .page-wrapper .page-inner section.normal dl dd {
	padding: 0 .85em;
	margin-bottom: .85em
}

.book .book-body .page-wrapper .page-inner section.normal dd {
	margin-left: 0
}

.book .book-body .page-wrapper .page-inner section.normal .glossary-term {
	cursor: help;
	text-decoration: underline
}

.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 {
	text-decoration: none;
	color: #444
}

.book .book-body .navigation.navigation-next {
	right: 0
}

.book .book-body .navigation.navigation-prev {
	left: 0
}

@media (max-width:1240px) {
	.book .book-body .navigation {
		position: static;
		top: auto;
		max-width: 50%;
		width: 50%;
		display: inline-block;
		float: left
	}
	.book .book-body .navigation.navigation-unique {
		max-width: 100%;
		width: 100%
	}
}

.book .book-body .page-wrapper .page-inner section.glossary {
	margin-bottom: 40px
}

.book .book-body .page-wrapper .page-inner section.glossary h2 a,
.book .book-body .page-wrapper .page-inner section.glossary h2 a:hover {
	color: inherit;
	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
}

* {
	-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
}

a {
	text-decoration: none
}

body,
html {
	height: 100%
}

html {
	font-size: 62.5%
}

body {
	text-rendering: optimizeLegibility;
	font-smoothing: antialiased;
	font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
	font-size: 14px;
	letter-spacing: .2px;
	text-size-adjust: 100%
}

.book .book-summary ul.summary li a span {
	display: inline;
	padding: initial;
	overflow: visible;
	cursor: auto;
	opacity: 1;
}


/* show arrow before summary tag as in bootstrap */

details>summary {
	display: list-item;
	cursor: pointer;
}


/*add whatsapp icon from FA 5.1.1
TODO: remove when updating fontawesome*/

.fa-whatsapp:before {
	content: "\f232"
}