html, body {
	height: 100%;
}
* { -moz-box-sizing: border-box; -webkit-box-sizing: border-box; box-sizing: border-box; }

body {
	overflow: hidden;
	margin: 0;
	background: black;
}

header {
	position: absolute;
	left: 0;
	right: 0;
	top: 0;
	height: 36px;
	margin: 0;
	padding: 0;

	background: white;
	color: black;
	line-height: 36px;

	font-family: Helvetica;
	border-bottom: 1px solid black;
}

h1 {
	display: inline;
	font-size: 20px;
	padding-left: 10px;
}

#source {
	display: block;
	position: absolute;
	top: 36px;
	left: 0;
	width: 50%;
	bottom: 0;
	margin: 0;
}		

iframe {
	position: absolute;
	top: 36px;
	height: -webkit-calc(100% - 36px);
	height: calc(100% - 36px);
	width: -webkit-calc(50% - 8px);
	width: calc(50% - 8px);
	right: 0;
	z-index: 2;
}

:focus {
    outline: 0;
}

body.resizing iframe {
	pointer-events: none;
}

#resizer {
	position: absolute;
	top: 36px;
	bottom: 0;
	left: 50%;
	width: 8px;
	margin: 0;
	padding: 0;
	z-index: 10;

	cursor: col-resize;

background: #f5f6f6; /* Old browsers */
background: -moz-linear-gradient(left,  #f5f6f6 0%, #dbdce2 21%, #b8bac6 49%, #8c8c8c 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, right top, color-stop(0%,#f5f6f6), color-stop(21%,#dbdce2), color-stop(49%,#b8bac6), color-stop(100%,#8c8c8c)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(left,  #f5f6f6 0%,#dbdce2 21%,#b8bac6 49%,#8c8c8c 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(left,  #f5f6f6 0%,#dbdce2 21%,#b8bac6 49%,#8c8c8c 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(left,  #f5f6f6 0%,#dbdce2 21%,#b8bac6 49%,#8c8c8c 100%); /* IE10+ */
background: linear-gradient(to right,  #f5f6f6 0%,#dbdce2 21%,#b8bac6 49%,#8c8c8c 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#f5f6f6', endColorstr='#8c8c8c',GradientType=1 ); /* IE6-9 */


}