una/template/form_field_help_popup.html

<div class="bx-form-input-help-popup">
    <div class="bx-form-input-help-popup-cnt">
        <div class="bx-form-input-hp-content">__content__</div>
        <div class="bx-form-input-hp-controls">
            <bx_if:show_edit>
                <a class="bx-form-input-hpc-edit bx-def-font-small" href="__link__" target="_blank"><bx_text:_Edit /></a>
            </bx_if:show_edit>
        </div>
    </div>
</div>