body { background-color: #F8F4E7; color: #552800;
       margin-left: 10%; margin-right: 10%;
       font-family: sans-serif;
     }
pre, code { font-family: monospace;;; }
h1,h2,h3,h4,h5,p,ul { font-family: sans-serif; }
.centered { text-align: center; }
:link { color: #0000a0; }
:visited { color: #a000a0; }
:active { color: #00a000; }