a.info{
    position: relative;
    z-index: 24;
    background-color: #ccc;
    color: #000;
    text-decoration: none;
    }

a.info:hover{z-index:25; background-color:#ff0}

a.info span{display: none}

a.info:hover span{
    display: block;
    position: absolute;
    top:2em; left:5em; width:20em;
    padding: 7px;
    font: 75% verdana, arial, helvetica, sans-serif;
    border: 1px solid #12134F;
    background-color: #6EC4D1;
    color: #000000;
    text-decoration: none;
    text-align: center;
    }