CSS

Kan/hvordan jeg optimere denne CSS-kode??

<style>
a:link{color: #C0C0C0;text-decoration: none; font-weight: bold;}
a:visited{color: #C0C0C0;text-decoration: none; font-weight: bold}
a:active{color: #C0C0C0;text-decoration: none;}
a:hover{color: #FFFFFF;text-decoration: underline overline; font-weight: bold}
</style>
<style>
{
font-family: verdana;}
{
font-size: 12px;}
{
color: FFFFFF}
{
background-color: #669999}
</style>