一种貌似DIV的链接效果，其实就是a标签的“神奇”设置

<style type="text/css">
<!--

.a2:link,.a2:visited {
        color: #06F;
        text-decoration: none;
        padding: 5px;
        border: 1px solid #AA7431;
}
.a2:hover,.a2:active {
        color: #06F;
        text-decoration: underline;
        padding: 5px;
        border: 1px solid #AA7431;
        background-color: #D09D57;
}
-->
</style>