kero/snippets/examples/dt/datatable/refer/widget.html

<div class="u-container-fluid u-widget-bg">
    <div class="u-row">
        <div class="u-col-md-12">
            <div class="u-widget  u-widget-right">
                <div class="u-widget-heading">
                    <h3 class="u-widget-title">参照输入框</h3>
                </div>
                <div class="u-widget-body">
                    <!--参照输入框 -->
                    <div class="u-form-group" id="refer1">
                        <label>参照输入框</label>
                        <div class="u-input-group u-has-feedback">
                            <input type="text" class="u-form-control">
                            <span class="u-form-control-feedback fa fa-list-ul"></span>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>