.birth-date-field small {
  display: block;
  color: #71858d;
  font-size: .86rem;
  font-weight: 500;
  line-height: 1.5;
  margin-top: 2px;
}

.birth-date-field input[type="text"] {
  font-size: 1rem;
  letter-spacing: .02em;
}

.birth-date-field input[readonly] {
  cursor: not-allowed;
}