a.info{
	position:relative; /*this is the key*/
	z-index:24;
	text-decoration:none;
	color: #000000
}

a.info:hover{
	z-index:25;
	color: #000000
}

a.info span{
	display: none;
}

a.info:hover span{ /*the span will display just on :hover state*/
	display:block;
  position:absolute;
  top:2em; left:2em; width:15em;
	border:1px solid black;
	top:1.3em;
	left:5px;
	background-color:gray; color:white;
	text-align: center;
	width: 400px;
}