body {
  width: 54em;
  margin: 0 auto;
  background-color: #ddd;
  font-size: 14px;
  font-family: "lucida grande", "verdana", "arial", sans-serif;
}
h1, h2, h3, h4, ul#nav, ul#subnav, p.bib, blockquote {
  font-family: "georgia", "times", serif;
  font-weight: normal;
}
h3 {
  font-weight: bold;
}
h1 {
  text-align: center;
  font-size: 2.5em;
  margin: 1em 0 0.5em;
}
a {
  color: #00f;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
#main {
  margin: 0;
  padding: 0 1em;
  border: 2px solid #aaa;
  background-color: #fff;
}
ul#nav, ul#subnav {
  list-style: none;
  margin: 0;
  padding: 0.25em 0;
  text-align: center;
}
ul#nav li, ul#subnav li {
  display: inline;
  margin: 0.25em 0.75em;
}
ul#nav {
  font-size: 1.2em;
}
ul#subnav {
  margin: 0;
  padding: 0.25em 0;
  background-color: #bbb;
  border-top: 2px solid #aaa;
  border-left: 2px solid #aaa;
  border-right: 2px solid #aaa;
}
ul#nav li {
}
ul#nav li a {
  color: #069;
}
ul#subnav li a {
  color: #900;
}
ul#nav li a#current_page, ul#subnav li a#current_subpage {
  color: #000;
}
ul#subnav {
  font-size: 1em;
}
ul#subnav li {
}
iframe {
  border: none;
  margin: 1em 0;
  padding: 0;
  width: 100%;
  height: 29em;
}
p, blockquote {
  text-align: justify;
}
p.bib {
  margin: 1em 0em;
  font-size: 1.1em;
  font-weight: bold;
}
p.foot {
  text-align: center;
  font-size: 0.9em;
  color: #666;
}
blockquote {  
  margin: 1em 0;
  padding: 0.5em;
  background-color: #ada;
  font-size: 1.1em;
}
cite {
  display: block;
  text-align: right;
  margin: 1em 0 0;  
}
img.left {
  float: left;
  margin: 1em 1em 1em 0;
}
img.right {
  float: right;
  margin: 1em 0 1em 1em;
}
img.center {
  display: block;
  margin: 1em auto;
}
table {
  border-collapse: collapse;
  text-align: center;
  margin: 1em auto;
  background-color: #caf;
  font-size: 1.1em;
}
tr:first-child {
  border-bottom: 1px solid #aaa;
  font-weight: bold;
}
td:first-child {
  border-right: 1px solid #aaa;
  font-weight: bold;
}
td {
  padding: 0.25em 0.75em;
}