body { 
	background-color: white;
	color: black;
	padding: 0 5%;
}
ul {
	padding: 0 1em;
}
pre {
	border: 1px solid black;
	background-color: white;
	color: black;
	padding: 4px 4px;
}
img.center {
        display: block;
        margin: 4px;
        margin-left: auto;
        margin-right: auto;
}
table {
	border-collapse: collapse;
	border: 2px solid black;
        margin: 1em 0;
}
caption {
	font-weight: bold;
}
th {
	border: 1px solid black;
	padding: 0.1em 0.3em;
	text-align: left;
	background-color: white;
	color: black;
}
td {
	border: 1px solid black;
	padding: 0.1em 0.3em;
}
.copyright {
        font-style: italic;
        font-size: small;
        text-align: center;
}