govuk-frontend/dist/govuk/components/checkboxes/template-with-fieldset-and-error-message.html

GOV.UK Frontend contains the code you need to start building a user interface for government platforms and services.

<div class="govuk-form-group govuk-form-group--error">
  <fieldset class="govuk-fieldset" aria-describedby="nationality-error">
    <legend class="govuk-fieldset__legend">
      What is your nationality?
    </legend>
    <p id="nationality-error" class="govuk-error-message">
      <span class="govuk-visually-hidden">Error:</span> Please accept the terms and conditions
    </p>
    <div class="govuk-checkboxes" data-module="govuk-checkboxes">
      <div class="govuk-checkboxes__item">
        <input class="govuk-checkboxes__input" id="nationality" name="nationality" type="checkbox" value="british">
        <label class="govuk-label govuk-checkboxes__label" for="nationality">
          British
        </label>
      </div>
      <div class="govuk-checkboxes__item">
        <input class="govuk-checkboxes__input" id="nationality-2" name="nationality" type="checkbox" value="irish">
        <label class="govuk-label govuk-checkboxes__label" for="nationality-2">
          Irish
        </label>
      </div>
      <div class="govuk-checkboxes__item">
        <input class="govuk-checkboxes__input" id="nationality-3" name="nationality" type="checkbox" value="other">
        <label class="govuk-label govuk-checkboxes__label" for="nationality-3">
          Citizen of another country
        </label>
      </div>
    </div>
  </fieldset>
</div>