.c3 svg {
  font: 10px sans-serif;
  -webkit-tap-highlight-color: rgba(0,0,0,0);
}
.c3 path, .c3 line {
  fill: none;
  stroke: #000;
}
.c3 text {
  -webkit-user-select: none;
     -moz-user-select: none;
          user-select: none;
}

.c3-legend-item-tile,
.c3-xgrid-focus,
.c3-ygrid,
.c3-event-rect,
.c3-bars path {
  shape-rendering: crispEdges;
}

.c3-chart-arc path {
  stroke: #fff;
}

.c3-chart-arc rect {
    stroke: white;
    stroke-width: 1;
}

.c3-chart-arc text {
  fill: #fff;
  font-size: 13px;
}