body {
	color: #444;
	font: normal 13px/22px "lucida grande", tahoma, verdana, arial, sans-serif;
	padding: 20px 30px;
	width: 100%;
	max-width: 1140px;
	margin: 0 auto;
}

pre {
	border: solid 1px #dddddd;
	color: #555;
	display: block;
	margin: 10px 0;
	padding: 8px 16px;
	overflow: auto;
}

iframe {
	border: 0;
	width: 100%;
}

.invalid {
	color: #f00;
}

.invalid input {
	background: #fee;
}