a:link {
  color: rgb(128,0,0); 
  text-decoration: none; 
 }/*normal links in the text*/
a:visited {
  color: rgb(128,0,0); 
  text-decoration: none; 
  }
a:hover { /*this effect is not shown in NN4.xx*/
  color: rgb(206,101,0); 
  text-decoration: underline; 
  }
a:active {/*colour in NN4.xx is red*/ 
  color: red; 
  text-decoration: underline; 
  }