just for test

<a href="javascript:void(0);" class="btn btn-primary btn-sm">确定</a>



<div class="col-xs-12">
            <form class="comment_reply_form" role="form" enctype="multipart/form-data">
                <input type="hidden" name="csrfmiddlewaretoken" value="xZNCrvTSCAnGTAvySpZ812J5wQKxXiOX5p0l19FRor7Hznk1P0gVyn6aArnnaQ7N">
                <div data-toggle="modal" data-target="#login-modal">
                    <textarea class="file-comment" name="content" cols="40" rows="2" maxlength="10000" required title="##" placeholder="######...###MarkDown#Latex###"></textarea>
                </div>
            </form>
            <div class="col-md-offset-10 col-md-2 col-sm-offset-9 col-sm-3 col-xs-offset-7 col-xs-5">
                <button class="btn btn-primary btn-sm" style="border-radius: 5px"
                        data-toggle="modal"
                        data-target="#login-modal" >
                    ####
                </button>
            </div>
        </div>
输出