         <input type="text" class="form-control" id="inputError">
                                        </div>
                                    </form>
                                    <h1>Input Groups</h1>
                                    <form role="form">
                                        <div class="form-group input-group">
                                            <span class="input-group-addon">@</span>
                                            <input type="text" class="form-contr