.bubble {
  position: relative;
  text-decoration: none;
}
.bubble span {display: none;}
.bubble:hover span {
  display: block;
  position: absolute; 
  padding: .5em;
  content: attr(title);
  min-width: 120px;
  text-align: center;
  width: 320px;/*auto;*/
  height: auto;
  /*white-space: nowrap;*/
  top: -200px;
  background: rgba(0,0,0,.8);
  -moz-border-radius:10px;
  -webkit-border-radius:10px;
  border-radius:10px;    
  color: #fff;
  font-size: .86em;
}
.bubble:hover span:after {
  position: absolute;
  display: block;
  content: "";  
  border-color: rgba(0,0,0,.8) transparent transparent transparent;
  border-style: solid;
  border-width: 10px;
  height:0;
  width:0;
  position:absolute;
  bottom: -16px;
  left:1em;
}