div class="col-sm-11">
                        <input class="form-control required" type="text" id="title" name="title" placeholder="标题">
                    </div>
                </div>
                <div class="form-group form-group-sm">
                    <label class="col-sm-1 control-label" for="title">封面</label>
                    <div class="col-sm-11">
                        <input class="form-control" type="text" id="cover" name="cover" placeholder="封面">
                    </div>