<STYLE type="text/css">
<!--
A:link, a:visited{COLOR: color of your choice; text-decoration:none;}
A:hover{border-top-style : solid;
border-left-style : solid;
border-right-style : solid;
border-bottom-style : solid;
border-color : #your choice  #your choice #your choice #your choice;
border-width : 1px 1px 1px 1px;
color:#your choice;}
-->
</STYLE>

Example: LINK HERE