<fieldset class="inline">
  <legend class="form-label">Do you know their National Insurance number?</legend>
  <div class="form-group form-group-compound">
    <label class="block-label" data-target="example-ni-number" for="radio-indent-1">
      <input id="radio-indent-1" type="radio" name="radio-indent-group" value="Yes">
      Yes
    </label>
    <label class="block-label" for="radio-indent-2">
      <input id="radio-indent-2" type="radio" name="radio-indent-group" value="No">
      No
    </label>
  </div>
  <div class="panel-indent js-hidden" id="example-ni-number">
    <label class="form-label" for="national-insurance">National Insurance number</label>
    <input class="form-control" type="text" id="national-insurance">
  </div>
</fieldset>

<fieldset class="inline">
  <legend class="form-label">Do you know their National Insurance number?</legend>
  <div class="form-group form-group-compound">
    <label class="block-label" data-target="example-ni-no" for="radio-indent-1">
      <input id="radio-indent-1" type="radio" name="radio-indent-group" value="Yes">
      Yes
    </label>
    <label class="block-label" for="radio-indent-2">
      <input id="radio-indent-2" type="radio" name="radio-indent-group" value="No">
      No
    </label>
  </div>
  <div class="panel-indent js-hidden" id="example-ni-no">
    <label class="form-label" for="national-insurance">National Insurance number</label>
    <input class="form-control" type="text" id="national-insurance">
  </div>
</fieldset>

Update snippet ID to remove duplicates
Update snippet ID to remove duplicates
