body {
  background: #fbfaf6;
  color: #23211d;
  font: 17px/1.6 Georgia, "Times New Roman", serif;
  margin: 0 auto;
  max-width: 40em;
  padding: 2.5em 1.2em 5em;
}
h1 { font-size: 1.8em; margin-bottom: 0.1em; }
h2 { font-size: 1.15em; margin-top: 2em; }
.sub { color: #6d675c; font-style: italic; margin-top: 0; }
a { color: #315b3f; }
a:visited { color: #5a4a6b; }
nav a { margin-right: 1em; }
ul { padding-left: 1.2em; }
li { margin-bottom: 0.4em; }
hr { border: 0; border-top: 1px solid #ddd8cc; margin: 2.5em 0 1.5em; }
footer { color: #6d675c; font-size: 0.9em; }
img { max-width: 100%; }