  </div>
          <h2 id="icon-only">Icon only</h2>
          <p><button type="button" class="btn btn-facebook btn-icon-only">
              <span class="btn-inner--icon"><i class="fab fa-facebook"></i></span>
            </button>
            <button type="button" class="btn btn-twitter btn-icon-only">
              <span class="btn-inner--icon"><i class="fab fa-twitter"></i></span>
            </button>
            <button type="button" class="btn btn-instagram btn-icon-only">
              <span class="