main.css

@font-face {
	font-family: 'RobotoMono';
	src: local('RobotoMono'), url('../files/RobotoMono-Regular.woff2') format('woff2');
	font-weight: normal;
	font-style: normal;
}

* {
	box-sizing: border-box; /* don't let padding modify width */
}

html, body {
	height: 100%;
}

body {
	margin: 0px;
	overflow: hidden;

	font-family: 'RobotoMono', monospace;
	font-size: 14px;
	line-height: 23px;

	background-color: #ffffff;
	color: #555;
}

a {
	text-decoration: none;
}

h1 {
	margin-top: 0px; /* reset */
	margin-left: 15px;
	margin-bottom: 20px;
	padding-top: 13px;

	font-size: 18px;
	font-weight: normal;
}

h1 a {
	color: #049EF4;
}

h2 {
	margin-top: 20px;

	font-size: 14px;
	font-weight: normal;

	color: #049EF4;
}

h3 {
	margin: 20px 0 0 0;

	font-size: 14px;
	line-height: 23px;
	font-weight: 500;
	text-transform: uppercase;

	color: #9E9E9E;
}

#panel {
	position: fixed;
	left: 0px;
	width: 300px;
	height: 100%;
	overflow: auto;

	background: white;
	border-right: 1px solid #f2f2f2;
}

	#panel #header {
		position: -webkit-sticky;
		position: sticky;
		top: 0;

		background: white;
	}

	#panel #expandButton {
		position: absolute;
		right: 14px;
		top: 14px;
		display: none;
	}

	#panel #sections {
		font-size: 14px;
		padding: 0px 16px;
	}

		#panel #sections * {
			display: inline-block;
			margin-right: 35px;
			margin-bottom: 12px;

			font-weight: 500;

			color: #333333;
		}

		#panel #sections a {
			color: #9E9E9E;
		}

	#panel #filter {
		width: 100%;
		height: 40px;
		padding: 0px 48px;
		font-size: 15px;
		outline: none;
		border: 0px; /* reset */
		border-top: 1px solid #f2f2f2;
		border-bottom: 1px solid #f2f2f2;
		background: url( "../files/ic_search_black_24dp.svg" ) no-repeat;
		background-position: 14px center;
	}

	#panel #language {
		position: absolute;
		top: 98px;
		right: 14px;
		border: 0px;
		font-size: 14px;
		background: url( "ic_arrow_drop_down_black_24dp.svg" ) no-repeat;
		background-position: right center;
		background-color: white;
		padding: 4px 26px 4px 8px;
		-webkit-appearance: none;
		-moz-appearance: none;
		appearance: none;
	}

		#panel #language:focus {
			outline: none;
		}

	#panel #content {
		margin: 0px 16px;
	}

		#panel #content ul {
			list-style-type: none;
			padding: 0px;
			margin: 0px;
		}

		#panel #content a {
			color: #222222;
		}

			#panel #content a:hover {
				text-decoration: underline;
			}

		#panel #content .selected {
			color: #ff0000;
		}

		#panel #content .hidden {
			display: none !important;
		}

iframe {
	position: absolute;
	border: 0px;
	left: 300px;
	width: calc(100% - 300px);
	height: 100%;
	overflow: auto;
}

/* mobile */

@media all and ( max-width: 640px ) {

	#panel {
		position: absolute;
		left: 0;
		top: 0;
		height: 100%;
		width: 100%;
		right: 0;
		z-index: 100;
		border-bottom: 1px solid #dedede;
	}

		#panel #expandButton {
			display: block;
		}

	/*
	#navigation {
		position: absolute;
		left: 0;
		top: 90px;
		right: 0;
		bottom: 0;
		font-size: 17px;
		line-height: 22px;
		overflow: auto;
	}
	*/

	iframe {
		position: absolute;
		left: 0;
		top: 92px;
		width: 100%;
		height: calc(100% - 92px);
	}

	#panel.collapsed {
		height: 92px;
	}

}