<script src="node_modules/metismenu/dist/metisMenu.js"></script>
<script>
  var header_wrap_height = $('.header_wrap').height();
  $('.metismenu').metisMenu({
      toggle: false,
      triggerElement: '.pricing-link',
      parentTrigger: '.pricing-item',
      subMenu: '.pricing-table'
    })
    .on('shown.metisMenu', function (event) {
      $('body,html').animate({
        scrollTop: $(event.target).parent('.pricing-item').position().top - header_wrap_height
      }, 600);
    });
</script>