a:hover {
  color: ivory;
  background-color: crimson;
  text-decoration: none;
  border-bottom-width: 0px;
}

a { 
  border-bottom-width: 1px;
  border-bottom-style: dotted;
  border-color: red;
  text-decoration: none;
}

a:active { cursor:crosshair; }

img { border-style: none; }