/* I'd rather not specify specific colors for this colorless stylesheet, so that user's defaults would be picked up, but there's text overlapping borders which makes that a bad idea. */
* {
  color: black !important;
  background-color: white !important;
  background-image: none !important;
}
:link {
  color: blue !important;
}
:visited { 
  color: purple !important;
}