.csv-tooltip-top,
.csv-tooltip-bottom {
    position: absolute;
    max-width: 200px;
    padding: 8px;
    color: #fff;
    background-color: #333;
    border-radius: 4px;
}

.csv-tooltip-top::before,
.csv-tooltip-bottom::before {
    content: "";
    position: absolute;
    width: 0;
    height: 0;
    border-style: solid;
}

.csv-tooltip-top::before {
    bottom: -10px;
    left: 50%;
    margin-left: -5px;
    border-width: 10px 10px 0;
    border-color: #333 transparent transparent;
}

.csv-tooltip-bottom::before {
    top: -10px;
    left: 50%;
    margin-left: -5px;
    border-width: 0 10px 10px;
    border-color: transparent transparent #333;
}