$('#mysidebar').height($(".nav").height()); $( document ).ready(function() { //this script says, if the height of the viewport is greater than 800px, then insert affix 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 affix"); } // 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'); });