             <div class="btn-group">
                                <button class="btn btn-white" type="button">左</button>
                                <button class="btn btn-primary" type="button">中</button>
                                <button class="btn btn-white" type="button">右</button>
                            </div>
                            <br/>
                            <br/>
                            <div class="btn-group">
                                <button typ