body {
  font: 10px sans-serif;
}

text {
  fill: #000;
}

button {
  position: absolute;
  right: 20px;
  top: 440px;
  display: none;
}

.rsi path {
  fill: none;
  stroke-width: 1;
}

.rsi {
  stroke: #000000;
}

.rsi path.overbought,
.rsi path.oversold {
  stroke: #FF9999;
  stroke-dasharray: 5, 5;
}

.rsi path.middle,
path.zero {
  stroke: #BBBBBB;
  stroke-dasharray: 5, 5;
}