.gantt-task-info {
    position: fixed;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.2);
    border-radius: 4px;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
    padding: 9px 12px;
    z-index: 999;
    color:black!important;
}

.gantt-task-info-content {
    line-height: 1.1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: black !important;
}

.gantt-task-infoArrow:before,
.gantt-task-infoArrowR:before {
    position: absolute;
    top: 100%;
    width: 0px;
    height: 0px;
    border-top: 8px solid rgba(0, 0, 0, 0.1);
    border-right: 8px solid transparent;
    border-left: 8px solid transparent;
    content: '';
}

.gantt-task-infoArrow:before {
    left: 10px;
}

.gantt-task-infoArrowR:before {
    right: 10px;
}

.gantt-task-infoArrow:after,
.gantt-task-infoArrowR:after {
    position: absolute;
    top: 100%;
    width: 0px;
    height: 0px;
    border-top: 7px solid #ffffff;
    border-right: 7px solid transparent;
    border-left: 7px solid transparent;
    content: '';
}

.gantt-task-infoArrow:after {
    left: 11px;
}

.gantt-task-infoArrowR:after {
    right: 11px;
}