BODY {
  color: black;
  background-color: ivory;
}
.tlh { color : #800000; font-weight : bold; }
A { color : #00008b; }
A:visited { color : #60008b; }
A:hover { background-color: #e0e0ff; }
A .tlh, .tlh A { color : #e02020; }
A.ext { color : #007000; }
A:hover IMG { background-color: inherit; }