a:hover .tooltip {
	visibility: visible;
	display: block;
}

#submenue a:hover em, #submenue li#selected a em {
    display:block; 
    overflow:hidden; 
    border:6px solid black; 
    border-color:black white; 
    border-width:6px 6px 0 6px; 
    position:absolute; 
    left:50%; 
    margin-left:-6px;
}