betaflight-configurator/tabs/modes.html

<div class="tab-modes toolbar_fixed_bottom">
    <div class="content_wrapper">
        <table class="boxes">
            <tr class="heads">
                <th style="width: 18%"></th>
            </tr>
            <tr class="main">
                <th i18n="auxiliaryName"></th>
            </tr>
        </table>
    </div>
    <div class="content_toolbar">
        <div class="btn save_btn">
            <a class="update" href="#" i18n="auxiliaryButtonSave"></a>
        </div>
    </div>
</div>