body {
  max-width: 800px;
  margin: auto;
  padding: 1em;
  line-height: 1.5em;
}

/* header and footer areas */
.menu { padding: 0; }
.menu li { display: inline-block; }
.heading-meta, .menu a {
  text-decoration: none;
  background: #eee;
  padding: 5px;
  border-radius: 5px;
}
.menu, .heading-meta, footer { text-align: center; }
.title { font-size: 1em; }
.copyleft {
  display:inline-block;
  transform: rotateY(180deg);
}
footer a { text-decoration: none; }
hr {
  border-style: dashed;
  color: #ddd;
}

/* code */
pre {
  border: 1px solid #ddd;
  box-shadow: 3px 3px 3px #eee;
  padding: 1em;
  overflow-x: auto;
  border-radius: 3px;
}
code { background: #ececec; }
pre code { background: none; }

/* misc elements */
img, iframe, video { max-width: 100%; }
blockquote {
  background: #ececec;
  border-left: 1px solid #ccc;
  padding: 3px 1em 3px;
  border-radius: 3px;
}

table {
  margin: auto;
  border-top: 1px solid #666;
  border-bottom: 1px solid #666;
}
table thead th { border-bottom: 1px solid #ddd; }
th, td { padding: 5px; }
thead, tfoot, tr:nth-child(even) { background: #eee; }