* {
 	box-sizing: border-box;
}

body {
	font-family: sans-serif;
	margin: 0;
}

a[href] {
	text-decoration: inherit;
}
a[href]:hover {
	text-decoration: underline;
}

div[header] {
	font-size: 14px;
	background-color: #ddd;
	padding: 8px 3%;
}

[content] {
	margin-left: 3%;
	margin-right: 3%;
}

[small] {
	font-size: small;
}

div[link] {
	margin: 0.5em 0;
}

div[toc] ul {
	list-style-type: none;
}
div[toc] > ul {
	padding-left: 0;
}
div[toc] > ul > li {
	margin-bottom: 16px;
}
div[heading] {
	display: flex;
	justify-content: space-between;
	margin-top: 36px;
}
div[heading] > * {
	margin: 0;
}
div[heading] > a {
	font-size: 14px;
}

h4 code {
	font-size: 1.4em;
}

div[footer] {
	margin-top: 32px;
	font-size: small;
}
div[footer] img {
	height: 1em;
	vertical-align: top;
}