Customize hyperlink with CSS

a:link
{
font-size:10px;
font-family:Verdana;
color: Gray;
text-decoration: none;
}
a:visited
{
font-size:10px;
font-family:Verdana;
color: Gray;
text-decoration:underline ;
}
a:hover
{
font-size:10px;
font-family:Verdana;
color: blue;
}