.rollover a {
background-color: #CCCCCC;
border: 1px solid #000000;
text-align: center;
width:100;
display:block;
text-decoration: none;
color:#000;
}
.rollover a:hover {
width:100;
text-decoration: none;
background-color: #D1DCE9;
color: #FF0000;
}
you should define a div and name the class as "rollover"
