$( document ).ready(function() { $('#mysidebar').height($(".nav").height()); // this script says, if the height of the viewport is greater than 800px, then insert position-fixed class, // which makes the nav bar float in a fixed position as your scroll. If you have a lot of nav items, // this height may not work for you. var h = $(window).height(); //console.log (h); if (h > 800) { $( "#mysidebar" ).attr("class", "nav position-fixed"); } // activate tooltips. although this is a bootstrap js function, it must be activated this way in your theme. $('[data-toggle="tooltip"]').tooltip({ placement : 'top' }); /** * AnchorJS */ anchors.add('h2,h3,h4,h5'); });