.tooltip-text {
    visibility: hidden;
    opacity: 0;
    position: absolute;
    background-color: slategray;
    color: white;
    text-align: center;
    padding: 5px 8px;
    border-radius: 6px;
    font-size: 12px;
    transform: translateX(-50%);
    margin-top: 30px;
    transition: all 0.3s ease    
  }
  
  .show-tooltip {
    opacity: 1;
    visibility: visible;
  }