.infobulle {
    position: relative;
    cursor: pointer;
}

.infobulle:hover::after,
.infobulle:focus::after {
    content: attr(aria-label);
    position: absolute;
    background-color: rgb(223, 223, 223);
    border-color:#9ca3af;
    padding: 5px;
    left: 50%;
    color:black;
    border-radius: 4px;
    transform: translateX(-60%) translateY(-95%);
    width: 200px;
    z-index: 999;
}