body {
	margin: 2em 2em auto;
	max-width: 44em;
	font-family: Times, "Times New Roman", serif;
	line-height: 1.5;
}

header a {
	color: initial;
	text-decoration: none;
}

main a {
	color: initial;
	text-decoration: none;
	border-bottom: 1px solid #c0c0c0;
}

main a:hover, header a:hover {
	color: white;
	background-color: black;
}

header {
	margin: 2em;
}

nav ul {
	list-style: none;
	padding: 0;
}

nav ul li {
	display: inline;
}

nav ul li:not(:last-child) {
	padding-right: 1em;
}

main {
	margin: 2em;
}

main img {
	width: 100%;
}

main hr {
	margin: 3em 0;
	border: 0;
	text-align: center;
}

main hr:before {
	content: "***"
}

sup {
	line-height: 0.5;
}

ul {
	list-style: circle;
}

li input {
	margin-right: 1em;
}

iframe {
	width: 42em;
	max-width: 100%;
	height: calc(42em * 9 / 16);
	background-size: cover;
}

table {
	width: 100%;
	border-collapse: collapse;
}

table td {
	padding: 4px;
	border: 1px solid black;
	vertical-align: top;
}

footer img {
	width: 2em;
}