.infobulle{
	position: absolute;
	visibility : hidden;
	border: 0px solid White;
	font-family: Verdana, Arial;
	font-size: 10px;
	opacity : 1;
	-moz-opacity : 1;
	-khtml-opacity : 1;
	filter : alpha(opacity=100);
	text-align: center;	
}