uccser/cs-field-guide

#interactive-checksum-calculator-gtin-13-input {
  font-family: monospace;
  font-size: 1.5rem;
}
#interactive-checksum-generator-generate {
  width: 100%;
  margin-bottom: 1rem;
}
#interactive-checksum-calculator-gtin-13-feedback {
  font-size: 1.2rem;
  font-weight: bold;
  color: green;
  margin-bottom: 0;
}
#interactive-checksum-calculator-gtin-13-feedback.invalid {
  color: red !important;
}