A:link {
  color: Blue;
  text-decoration: underline; 
  background: none;}/*normal links in the text*/
A:visited {
  color: Blue; 
  text-decoration: underline; 
  background: none;}
A:hover { /*this effect is not shown in NN4.xx*/
  color: Maroon; 
  text-decoration: none; 
  background: ;}
A:active {/*colour in NN4.xx is red*/ 
  color: Red; 
  text-decoration: underline; 
  background: none;}
}