HOW TO CHANGE THE BACKGROUND COLOR OF A LINK BUTTON ON MOUSE OVER

style type="text/css">
    .customhover a
    {
                background-color: Transparent;
    }
    .customhover a:hover
    {
        background-color: #CCFFFF;
        color:Black;
          border:solid 1px black;
       
    }
   </style>

<td>
   <div class="customhover">
    <asp:LinkButton runat="server" ID="lnkBtnKitDefinition" Font-Size="11px" Font-Underline="False"
                                                                                    Font-Bold="false" Font-Names="Verdana" Text="Kit Definitions"></asp:LinkButton>
</div>
 </td>