div#mitexto {
	width: 650px;
	margin:0 auto
}
a.tt{
    position:relative;
    z-index:24;
	font-weight:bold;
    text-decoration:none;
}
a.tt span{
	display: none;
}
a.tt:hover{
	z-index:25;
}
a.tt:hover span.tooltip{
    display:block;
    position:absolute;
    top:0px; right:0;
	padding: 10px 0 0 0;
	width:130px;
	text-align:center;
}
a.tt:hover span.top{
	display: block;
	padding: 35px 8px 0;
    background: url(../../images/bubble.gif) no-repeat top;
}
a.tt:hover span.middle{ /* altura del fondo variable */
	display: block;
	padding: 0 8px; 
	background: url(../../images/bubble_filler.gif) repeat bottom; 
}
a.tt:hover span.bottom{
	display: block;
	padding:3px 8px 10px;
    background: url(../../images/bubble.gif) no-repeat bottom;
}