.node circle {
    cursor: pointer;
    stroke-width: 3px;

}

.node text {
   /* font-family: 'Source Sans Pro';*/
    pointer-events: none;
    text-anchor: middle;
     cursor: pointer;
    fill:#fff;
    letter-spacing: 0.5px;
}
.node image {
    cursor: pointer;
}
line.link {
    fill: none;
    stroke: #666;
    stroke-width: 2px;
}

#chart {
    margin-top: 80px;
    width: 100%;
    height: 100%;
    padding-bottom: 50px;
    display:none;
}