           <p>
                            简单干净的范围选择滑块
                        </p>
                        <div class="row m-b-lg">
                            <div class="col-sm-12">
                                <div id="drag-fixed" class="slider_red"></div>
                            </div>
                        </div>
                        <div class="row">
                            <div class="col-sm-6">
                                <p class="font-bold">简单示例</