text {
    font-family: sans-serif;
    font-size: 12px;
    fill: white;
}
div.tooltip-piechart-multilayer {
    position: absolute;
    width: 200px;
    height: auto;
    padding: 10px;
    background-color: white;
    -webkit-border-radius: 10px;
    -moz-border-radius: 10px;
    border-radius: 10px;
    -webkit-box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.4);
    -mox-box-shadow: 4px 4px 4px 10px rgba(0, 0, 0, 0.4);
    box-shadow: 4px 4px 10px rbga(0, 0, 0, 0.4);
    pointer-events: none;
}
div.tooltip-piechart-multilayer.hidden {
    opacity: 0;
}
div.tooltip-piechart-multilayer p {
    margin: 0;
    font-family: sans-serif;
    font-size: 16px;
    line-height: 20px;
}