body, html {
	margin: 0;
	padding: 0;
	height: 100%;
	font-family: Arial;
	font-size: 14px;
	line-height: 1.5em;
}

.video-wrapper {
    position: relative;
    z-index: 9; 
    padding-bottom: 56.25%; /* 16:9 */
    padding-top: 25px;
    height: 0;
}

.video-wrapper iframe {
    position: absolute;
        z-index: 9; 
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.outline-video-wrapper {
	width: 50%;
	margin: 0 auto;
}

h1, h2, h3, h4, h5 {
	line-height: 1.0em;
}

ul {
	list-style: square;
}

aside {
	background: #3f3f3f;
	color: #fff;
	position: fixed;
	top: 0;
	bottom: 0;
	left: 0;
	width: 291px;
}

aside.scroll {
	overflow-y:scroll;
}

aside a {
	color: #fff;
	display: block;
	font-size: 12px;
	line-height: 22px;
	margin: 0 0 10px 0;
	text-decoration: none;
}

aside > ul {
	list-style: none;
	margin: 43px 0 0 0;
	padding: 0;
}

aside ul > li ul {
	display: none;
}

aside ul ul li {
	padding-right: 40px;
}

aside > ul > li > a {
	padding: 0 25px;
}

aside ul > li.visible-item ul {
	display: block;
	margin-left: 30px;
}

aside ul > li.visible-item > a {
	background: #343434;
	padding: 13px 25px;
}

.container {
	padding: 27px 49px 20px 321px;
}

iframe {
	display: block;
	margin: 0 auto;
}

figure {
	background-color: #fcfcfc;
	box-sizing: border-box;
	-moz-box-sizing: border-box;
	border: 1px solid #f1f1f1;
	display: inline-block;
	margin: 0;
	max-width: 100%;
	padding: 20px;
	text-align: center;
}

figure figcaption {
	color: #666;
	display: block;
	margin: 0 auto;
	width: 40%;
}

.right {
	float: right;
	margin: 30px 0 0 50px;
	max-width: 100%;
}

h1 {
	font-size: 24px;
	font-weight: 400;
	margin: 0 0 18px 0;
	padding: 0;
}

h2 {
	font-size: 30px;
	margin: 0;
	padding: 40px 0 14px 0;
}

h3 {
	margin: 0 0 25px 0;
	padding: 20px 0 0 0;
	font-size: 18px;
}

h4 {
	font-size: 16px;
	padding-top: 20px;
}

h5 {
	padding-top: 10px;
	font-size: 14px;
	text-transform: uppercase;
}

/* Preface */

.preface {
	background: #d5d5d5;
	display: block;
	list-style: none;
	margin: 0 0 45px 0;
	padding: 40px;
}

.preface a {
	color: #000;
	text-decoration: none;
}

.preface a:hover {
	text-decoration: underline;
}

pre {
	border: 1px solid #ccc;
	border-style: none none none solid;
	word-wrap: break-word; 
	word-break: break-all;
	max-width: 100%;
	margin: 15px 0 25px 21px;
	padding: 2px 5px 2px 10px;
	position: relative;
}

pre:before {
	background: #f8f8f8;
	content: "";
	width: 20px;
	position: absolute;
	left: -21px;
	top: 0;
	bottom: 0;
}
.class {
	color: #07A;
	direction: ltr;
	display: inline;
	font-family: Consolas, Monaco, 'Andale Mono', monospace;
	font-size: 14px;
	height: auto;
	line-height: 21px;
	text-align: left;
	text-shadow: #FFF 0px 1px 0px;
	white-space: pre;
	width: auto;
	word-spacing: 0px;
}