submit button not displayed in internet explorer 11

Hello,

I have a quiz which perfectly working with google chrome. Unfortunately, the div containing the submit button is not displayed when using MIE11.

<div class="qsm-pagination qmn_pagination border margin-bottom">
            <a class="qsm-btn qsm-previous qmn_btn mlw_qmn_quiz_link mlw_previous" href="#" style="display: none;">Précédent</a>
            <span class="qmn_page_message"></span>
            <div class="qmn_page_counter_message"></div>
            <div id="qsm-progress-bar" style="display:none;"></div>
            <a class="qsm-btn qsm-next qmn_btn mlw_qmn_quiz_link mlw_next" href="#" style="display: none;">Suivant</a>
            <input type="submit" class="qsm-btn qsm-submit-btn qmn_btn" value="Envoyer" style="display: block;">
            </div>

I understand that the div is generate by JS (because it doesn’t appears at all in the source code), and at first I’ve supposed that the JS was deactivated in MIE but it is acually activated.

Is it a known bug ? Is there any means to fix it ?

Thank you