.m_banner_hide{
	display:none;
}
.m_banner_show{
	display:block;
}

a.info{
    position:relative; /*this is the key*/
    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{ /*the span will display just on :hover state*/
    display:block;
    position:absolute;
    top:4em; left:2em; width:25em; height: 5em;
    border:4px solid #F90;
    background-color:#FF6;
	padding-top: 1em;
	color:#000;
    text-align: center;
	
}