body {
  background-color: #cfc; 
  color: #111;
}

a:link {
  color: #039;
}

a:visited {
  color: #3a3;
}

a:hover {
  color: #353;
}

a:active {
  color: #00d;
}

#left_column {
  background-color: #353;
}

#center_column {
  background-color: #cfc;
}

div.book {
  background-color: #aaf;
}

div.book span.author {
  color: #555;
}