html, body {
	height: auto;
	width: auto;
	/*background-color: yellow;*/
	font-family: sans-serif;
} 

h2 {
	width: 100%;
	text-align: center;
	padding: 10px;
}

.dull .dullable {
	opacity: 0.4;
	filter: alpha(opacity=40); /* For IE8 and earlier */
	pointer-events: none;
}

#options_div {
	/*float: left;*/
	/*background-color: green;*/
	padding: 20px;
	margin-left: 51%;
	width: auto;
	height: 100%;
}

#canvas_div {
	float: left;
	width: 50%;
	max-width: 500px;
	max-height: 500px;
	min-width: 300px;
	min-height: 300px;
	/*background-color: black;*/
	/*padding: 20px;*/
}

#global_controls {
	width: 100%;
	/*margin: 20px;*/
	padding-bottom: 20px;
}

.brightness-slider {
	width: 95%;
}



/*#page {
	display: none;
}
#loading {
	float: left;
	display: block;*/
	/*position: absolute;*/
	/*top: 0;*/
	/*left: 0;*/
/*	z-index: 100;
	width: 50%;
	height: 50%;
	background-color: rgba(192, 192, 192, 0.5);
	background-image: url("http://i.stack.imgur.com/MnyxU.gif");
	background-repeat: no-repeat;
	background-position: center;
}*/