body {
	font: 100% "Lucida Grande", Verdana, Lucida, Helvetica, Arial, sans-serif;
	background-color: transparent;
	background-image: url(bg_pattern.png);
	margin: 25px;
}

.content {
	background-color: #fff;
	max-width: 1000px;
	margin-left: auto;
	margin-right: auto;
	border-radius: 6px;
	padding: 8px 32px 16px 32px;
}

h1 {
	font-family: "Lucida Grande", Verdana, Lucida, Helvetica, Arial, sans-serif;
	font-size: 160%;
	font-weight: 500;
}
h2 {
	font: 145% "Lucida Grande", Verdana, Lucida, Helvetica, Arial, sans-serif;
}
h3 {
	font: 135% "Lucida Grande", Verdana, Lucida, Helvetica, Arial, sans-serif;
}

pre {
	font-family: Monaco, monospace;
	border-left: 2px solid #ccc;
	overflow-x: auto;
}

tt { font-family: Monaco, monospace; }

a { text-decoration: none; }
a:link { color: #00a; }
a:visited { color: #44c; }
a:hover { color: #66f; }

p {
	line-height: 125%;
	text-align: justify;
}
p.direct-img {
	text-align: center;
}
img {
	max-width: 90%;
	max-height: 90vh;
}

/* fieldset */ .figure {
	display: block;
	text-align: center;
	border: 1px solid #888;
	max-width: 90%;
	margin-left: auto;
	margin-right: auto;
}
.caption {
	text-align: justify;
	display: block;
	margin-top: 6px;
}

ol.toc a.chapter {
	font-size: 135%;
	font-weight: 500;
}
ol { padding-left: 2em; }
ol li { margin-top: 2px; }
p.code-ref {
	background-color: #F0F0F0;
	border-style: solid;
	border-width: thin;
}