<div class="form-group multiple-form-group" >
                            <label for="CNPJ">CNPJ: </label>

                            <div class="input-group">

                                <div class="input-group-addon">
                                    <i class="fa fa-building
    "></i>
                                </div>

                                <input id="" type="text" name="CNPJ"  class="cnpj2 cnpj form-control">
                                <span class="input-group-btn"><button type="button" class="btn btn-primary btn-add" placeholder="Digite o CNPJ">+
						</button></span>

                            </div>
                        </div>