$( 'a.lgx-scroll' ).on( 'click', function(event) {
            var $anchor = $(this);
            var topTo   = $( $anchor.attr('href') ).offset().top;

            if ( window.innerWidth < 768 ) {
                topTo = ( topTo - 90 );
            }

            $( 'html, body' ).stop().animate({
                scrollTop: topTo
            }, 1500, 'easeInOutExpo');
            event.preventDefault();
            return false;
        } );