<button type="button" class="quadmenu-navbar-toggle collapsed" data-quadmenu="collapse" data-target="<?php echo esc_attr($target); ?>" aria-expanded="false" aria-controls="quadmenu">
  <span class="icon-bar-container">
    <span class="icon-bar icon-bar-top"></span>
    <span class="icon-bar icon-bar-middle"></span>
    <span class="icon-bar icon-bar-bottom"></span>
  </span>
</button>