.tooltip {
    background-color: clear; 
    text-align: center;
    display: block;
    position: relative;
    margin-top: 50px;
  }

.shareButton .tooltiptext {
    visibility: hidden;
    width: 140px;
    background-color: #555;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 5px;
    position: absolute;
    z-index: 1;
    bottom: 150%;
    left: 50%;
    margin-left: -75px;
    opacity: 0;
    transition: opacity 0.3s;
}

.shareButton .tooltiptext::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: #555 transparent transparent transparent;
}

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

.shareButton {
    border: none;
    cursor: pointer;
    appearance: none;
    background-color: inherit;
    width: 25px;
    height: 25px;
    border-radius: 50%;
}

.shareButton:hover {
    box-shadow: rgba(0, 0, 0, 0.25) 0 8px 15px;
    transform: translateY(-2px);
}

img {
    width: 25px;
    height: 25px;
}