@aws-amplify/ui/dist/styles/fieldMessages.css

`@aws-amplify/ui` contains low-level logic & styles for stand-alone usage or re-use in framework-specific implementations.

.amplify-field__description {
  color: var(--amplify-components-fieldmessages-description-color);
  font-style: var(--amplify-components-fieldmessages-description-font-style);
  font-size: var(--amplify-components-fieldmessages-description-font-size);
}

.amplify-field__error-message {
  color: var(--amplify-components-fieldmessages-error-color);
  font-size: var(--amplify-components-fieldmessages-error-font-size);
}