.a1 {color: #0000FF; text-decoration: none }
.a1:hover { color: #FF0000; text-decoration: underline}

.a2 {color: #CCCCCC; text-decoration: none }
.a2:hover { color: #FFFFCC; text-decoration: underline}

.a3 {color: #FFFFFF; text-decoration: none }
.a3:hover { color: #000000; text-decoration: underline}