three.js/docs/styles.css

body {
	margin: 0;
	padding: 0;
	color: #555;
	font-family: Arial, sans-serif;
	font-size: 15px;
}

h1 {
	color: #ff0000;
	font-size: 25px;
	margin-top: 20px;
}

h2 {
	color: #999;
	font-size: 18px;
	margin-top: 40px;
}

h3 {
	font-size: 15px;
	margin-top: 30px;
}