<div class="radio">
  <input type="radio" id="test1" name="radio-group" />
  <label for="test1">Radio Label</label>
</div>

<div class="radio">
  <input type="radio" id="test2" name="radio-group" />
  <label for="test2">Radio Label</label>
</div>

<div class="radio">
  <input type="radio" id="test3" name="radio-group" />
  <label for="test3">Radio Label</label>
</div>

<div class="radio">
  <input type="radio" id="test4" name="radio-group" />
  <label for="test4">Radio Label</label>
</div>

<div class="radio radio--error">
  <input type="radio" id="test-error" name="radio-group" />
  <label for="test-error">Radio Label</label>
</div>