.theta-track-number {
  color: rgba(255,255,255,.42);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .08em;
  min-width: 28px;
  text-align: center;
  align-self: center;
}

.theta-track-row[data-track-number] {
  position: relative;
}