body {
    font-family: Arial, sans-serif;
  font-size: 18px;
  line-height: 1.5;
  color: #000;
  background: #fff;
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}
a { color: #0000ee; }
a:visited { color: #551a8b; }
h1 { font-size: 2em; text-align: center; margin: 0 0 4px; }
h2 { font-size: 1.25em; border-bottom: 1px solid #000; padding-bottom: 2px; margin: 40px 0 12px; }
h3 { font-size: 1em; margin: 0; }
p { margin: 0 0 8px; }
ul { margin: 4px 0 0; padding-left: 22px; }
li { margin-bottom: 4px; }
.center { text-align: center; }
.item { margin-bottom: 18px; }
.sub { font-style: italic; }
nav { margin: 16px 0 0; }
nav a { margin: 0 6px; }
footer { margin-top: 48px; font-size: 0.85em; text-align: center; }