staf каза:http://www.bosrup.com/web/overlib/
<style>
.balon{
position: relative;
z-index: 0;
}
.balon:hover{
background-color: transparent;
z-index:50px;
}
.balon span{
position: absolute;
background-color:lightyellow;
padding: 5px;
left: -1000px;
border: 1px dashed gray;
visibility: hidden;
color:black;
text-decoration: none;
}
.balon:hover span{
visibility: visible;
top: 5;
left: 20px;
}
</style>
<a class="balon" href="#">link<span>texta na balona</span></a> <br>
<a class="balon" href="#">link2<span>texta na balona2</span></a>