article {
	width: 55em;
	margin-left: auto;
	margin-right: auto;
}
header p {
	color: #999b9f;
	margin: 0;
	padding: 0.8em;
	line-height: 1.6em;
	font-size: 0.9em;
}

header p strong {
	color: #808387;
	text-transform: uppercase;
}

div.demo {
	border: solid 2px rgba(255, 255, 255, 0.4);
}

div.demo p {
	margin: 0;
	padding: 4px;
	font-size: 0.9em;
}

textarea {
	width: 100%;
	height: 60px;
}

div.demo p a {
	float: right;
}

iframe.demo {
	background-color: rgba(255, 255, 255, 0.25);
	border: none;
	margin-right: 8px;
}

A code, code A {
	color: rgb(0, 0, 172);
}

.highlight {
	background-color: rgba(250, 252, 255, 0.7);
	margin: 0;
	padding: 0.8em;
}