.ctk-tooltip {
    padding: 4px 8px;
    background: #000;
    color: #FFF;
    position: absolute;
    top: 0;
    left: 0;
    border-radius: 4px;
    font-size: 14px;
    font-family: inherit;
    transform: translateX(-50%);
    z-index: 9999;
    -webkit-box-shadow: 0px 1px 5px rgba(0, 0, 0, 0.2);
    box-shadow: 0px 1px 5px rgba(0, 0, 0, 0.2);
}