https://www.pitajucene.com/wp-content/themes/discy/js/theia.js?ver=1.0.0

1/* Theia Sticky Sidebar */
2(function ($) {$.fn.theiaStickySidebar = function (options) {var defaults = {'containerSelector': '','additionalMarginTop': 0,'additionalMarginBottom': 0,'updateSidebarHeight': true,'minWidth': 0,'disableOnResponsiveLayouts': true,'sidebarBehavior': 'modern'};options = $.extend(defaults, options);options.additionalMarginTop = parseInt(options.additionalMarginTop) || 0;options.additionalMarginBottom = parseInt(options.additionalMarginBottom) || 0;tryInitOrHookIntoEvents(options, this);function tryInitOrHookIntoEvents(options, $that) {var success = tryInit(options, $that);if (!success) {console.log('TST: Body width smaller than options.minWidth. Init is delayed.');$(document).scroll(function (options, $that) {return function (evt) {var success = tryInit(options, $that);if (success) {$(this).unbind(evt);}};}(options, $that));$(window).resize(function (options, $that) {return function (evt) {var success = tryInit(options, $that);if (success) {$(this).unbind(evt);}};}(options, $that))}}function tryInit(options, $that) {if (options.initialized === true) {return true;}if ($('body').width() < options.minWidth) {return false;}init(options, $that);return true;}function init(options, $that) {options.initialized = true;$('head').append($('<style>.theiaStickySidebar:after {content: ""; display: table; clear: both;}</style>'));$that.each(function () {var o = {};o.sidebar = $(this);o.options = options || {};o.container = $(o.options.containerSelector);if (o.container.length == 0) {o.container = o.sidebar.parent();}o.sidebar.css({'position': 'relative','overflow': 'visible','-webkit-box-sizing': 'border-box','-moz-box-sizing': 'border-box','box-sizing': 'border-box'});o.stickySidebar = o.sidebar.find('.theiaStickySidebar');if (o.stickySidebar.length == 0) {o.sidebar.find('script').remove();o.stickySidebar = $('<div>').addClass('theiaStickySidebar').append(o.sidebar.children());o.sidebar.append(o.stickySidebar);}o.marginTop = parseInt(o.sidebar.css('margin-top'));o.marginBottom = parseInt(o.sidebar.css('margin-bottom'));o.paddingTop = parseInt(o.sidebar.css('padding-top'));o.paddingBottom = parseInt(o.sidebar.css('padding-bottom'));var collapsedTopHeight = o.stickySidebar.offset().top;var collapsedBottomHeight = o.stickySidebar.outerHeight();o.stickySidebar.css('padding-top', 1);o.stickySidebar.css('padding-bottom', 1);collapsedTopHeight -= o.stickySidebar.offset().top;collapsedBottomHeight = o.stickySidebar.outerHeight() - collapsedBottomHeight - collapsedTopHeight;if (collapsedTopHeight == 0) {o.stickySidebar.css('padding-top', 0);o.stickySidebarPaddingTop = 0;}else {o.stickySidebarPaddingTop = 1;}if (collapsedBottomHeight == 0) {o.stickySidebar.css('padding-bottom', 0);o.stickySidebarPaddingBottom = 0;}else {o.stickySidebarPaddingBottom = 1;}o.previousScrollTop = null;o.fixedScrollTop = 0;resetSidebar();o.onScroll = function (o) {if (!o.stickySidebar.is(":visible")) {return;}if ($('body').width() < o.options.minWidth) {resetSidebar();return;}if (o.options.disableOnResponsiveLayouts) {if (o.sidebar.outerWidth(true) + 50 > o.container.width()) {resetSidebar();return;}}var scrollTop = $(document).scrollTop();var position = 'static';if (scrollTop >= o.container.offset().top + (o.paddingTop + o.marginTop - o.options.additionalMarginTop)) {var offsetTop = o.paddingTop + o.marginTop + options.additionalMarginTop;var offsetBottom = o.paddingBottom + o.marginBottom + options.additionalMarginBottom;var containerTop = o.container.offset().top;var containerBottom = o.container.offset().top + getClearedHeight(o.container);var windowOffsetTop = 0 + options.additionalMarginTop;var windowOffsetBottom;var sidebarSmallerThanWindow = (o.stickySidebar.outerHeight() + offsetTop + offsetBottom) < $(window).height();if (sidebarSmallerThanWindow) {windowOffsetBottom = windowOffsetTop + o.stickySidebar.outerHeight();}else {windowOffsetBottom = $(window).height() - o.marginBottom - o.paddingBottom - options.additionalMarginBottom;}var staticLimitTop = containerTop - scrollTop + o.paddingTop + o.marginTop;var staticLimitBottom = containerBottom - scrollTop - o.paddingBottom - o.marginBottom;var top = o.stickySidebar.offset().top - scrollTop;var scrollTopDiff = o.previousScrollTop - scrollTop;if (o.stickySidebar.css('position') == 'fixed') {if (o.options.sidebarBehavior == 'modern') {top += scrollTopDiff;}}if (o.options.sidebarBehavior == 'legacy') {top = windowOffsetBottom - o.stickySidebar.outerHeight();top = Math.max(top, windowOffsetBottom - o.stickySidebar.outerHeight());}if (scrollTopDiff > 0) {top = Math.min(top, windowOffsetTop);}else {top = Math.max(top, windowOffsetBottom - o.stickySidebar.outerHeight());}top = Math.max(top, staticLimitTop);top = Math.min(top, staticLimitBottom - o.stickySidebar.outerHeight());var sidebarSameHeightAsContainer = o.container.height() == o.stickySidebar.outerHeight();if (!sidebarSameHeightAsContainer && top == windowOffsetTop) {position = 'fixed';}else if (!sidebarSameHeightAsContainer && top == windowOffsetBottom - o.stickySidebar.outerHeight()) {position = 'fixed';}else if (scrollTop + top - o.sidebar.offset().top - o.paddingTop <= options.additionalMarginTop) {position = 'static';}else {position = 'absolute';}}if (position == 'fixed') {o.stickySidebar.css({'position': 'fixed','width': o.sidebar.width(),'top': top,'left': o.sidebar.offset().left + parseInt(o.sidebar.css('padding-left'))});}else if (position == 'absolute') {var css = {};if (o.stickySidebar.css('position') != 'absolute') {css.position = 'absolute';css.top = scrollTop + top - o.sidebar.offset().top - o.stickySidebarPaddingTop 

2- o.stickySidebarPaddingBottom;}css.width = o.sidebar.width();css.left = '';o.stickySidebar.css(css);}else if (position == 'static') {resetSidebar();}if (position != 'static') {if (o.options.updateSidebarHeight == true) {o.sidebar.css({'min-height': o.stickySidebar.outerHeight() + o.stickySidebar.offset().top - o.sidebar.offset().top + o.paddingBottom});}}o.previousScrollTop = scrollTop;};o.onScroll(o);$(document).scroll(function (o) {return function () {o.onScroll(o);};}(o));$(window).resize(function (o) {return function () {o.stickySidebar.css({'position': 'static'});o.onScroll(o);};}(o));function resetSidebar() {o.fixedScrollTop = 0;o.sidebar.css({'min-height': '1px'});o.stickySidebar.css({'position': 'static','width': ''});}function getClearedHeight(e) {var height = e.height();e.children().each(function () {height = Math.max(height, $(this).height());});return height;}});}}})(jQuery);