una/template/menu_buttons_icon_hor_item.html

<a class="bx-btn bx-def-margin-right" href="__link__" target="__target__" onclick="__onclick__" title="__title_attr__">
    <bx_if:image><img style="background-image:url(__icon_url__)" src="<bx_icon_url:spacer.gif />" /></bx_if:image>
    <bx_if:icon><i class="sys-icon __icon__"></i></bx_if:icon>
    <bx_if:title><u>__title__</u></bx_if:title>
</a>