un esempio...
codice:
<html>

<head>
<meta http-equiv="Content-Type" content="text/html; charset=TUOCHARSET">
<title>titolo pagina</title>
<style type="text/css">
a:link {color:#FF0000}      /* unvisited link */
a:visited {color:#00FF00}  /* visited link */
a:hover {color:#FF00FF}  /* mouse over link */
a:active {color:#0000FF}  /* selected link */
</style>
</head>

<body>
link

</body>

</html>