body {
  font: 14px helvetica;
  width: 100%;
  height: 100%;
}

.chart {
  width: 100%;
  height: 100%;
}

.path {
  fill: none;
  stroke: #000;
  stroke-width: 3px;
}

.selected {
  stroke: #78C656;
}
.btn {
  font-size: 40px;
  background-color: #efefef;
}