body { margin: 2em auto; max-width: 46em; padding: 0 1em;
  font-family: Georgia, 'Times New Roman', serif; color: #111; background: #fff;
  line-height: 1.45; }
h1 { font-size: 1.5em; border-bottom: 1px solid #999; padding-bottom: .2em; }
h2 { font-size: 1.15em; margin-top: 1.6em; }
a { color: #00e; text-decoration: none; }
a:visited { color: #551a8b; }
a:hover { text-decoration: underline; }
ul { padding-left: 1.4em; }
li { margin: .15em 0; }
pre { background: #f4f4f4; border: 1px solid #ddd; padding: .6em;
  overflow-x: auto; font-size: .85em; line-height: 1.3; }
code { background: #f4f4f4; font-size: .9em; }
.meta { color: #666; font-size: .85em; }
footer { margin-top: 3em; color: #666; font-size: .85em;
  border-top: 1px solid #999; padding-top: .5em; }