.tooltip {
  position: relative;

}


.tooltiptext {
  visibility: hidden; 
  width: 120px;
  background-color: #f0f0f0;
  color: #000;
  text-align: center;
  border-radius: 6px;
  padding: 5px 0;
  position: absolute;
  z-index: 1;
  bottom: 70%; 
  left: 20%;
  margin-left: -60px; 
  opacity: 0; 
  transition: opacity 0.3s;
}


.tooltip:hover .tooltiptext {
  visibility: visible; 
  opacity: 1; 
}