<div id="modal-content" class="modal fade bs-example-modal-lg" style="padding-top:10%" tabindex="-1" role="dialog">
   <div class="modal-dialog modal-lg" style="width: 600px">
    <div class="modal-content" >
        <div class="wrapper">
            <div class="test_temp">
                <div class="pop_tit">
                    <span class="fl">理科公式</span>
                    <div class="w_func fr">
                        <a href="javascript:;" title="关闭" data-dismiss="modal"  class="w_func_close"></a>
                    </div>
                </div>
                <div style="padding-left: 20px;padding-top: 30px;">
                      <iframe id="equationFrm" src="./editor/assert/js/widget/mathequation/index.html" frameborder="0" style="width:100%;min-height:400px"></iframe>
                </div>
                <canvas id="outputCanvas" style="width:0px;height:0px"></canvas>
                <div class="pop_btn_box">
                    <a id="btnPrimary" href="javascript:void(0)" class="pop_btn fr mrmt "><span class="pop_btn_s2">确定</span></a>
                </div>
            </div>
        </div>
     </div>
    </div>
</div>