Nitro

Hi thanks for the reply, To see my version break you need to scroll down until it is pinned and triggering one of the tabs, then change the vertical size of the browser window, then the markers jump for the pinned section to the top. Having said that, the version you have provided seems to fix the issue anyway, so thank you for providing it.

Here is a basic codepen showing the issue (you'll need to go though to the codepen site to change the browser window to make it break) https://codepen.io/nitrokev/pen/zYQYZMB

Hi I'm quite new to GSAP and having an issue I can't figure out. I have full width section that pins when it gets to the top of the window, then inside that section I have scrolltrigger which toggles the class on some tab sections to open them as you scroll. This works well until the browser is resized, then the markers for the tabs jump to the top of the page and therefore aren't being triggered any more. You can see it on the lower green section of my dev site https://avidd2024.dev.avidd-design.co.uk if (window.innerWidth > 640) { // Pin the tabs container when a tab title is active const tabsContainer = document.getElementById("pintrigger"); gsap.to(tabsContainer, { scrollTrigger: { trigger: tabsContainer, start: 'top 0', // When to start pinning at the top of the screen end: '+=1000', // Unpin after scrolling 1000px past the start pin: true, // Pin the element pinSpacing: true, // Maintain the pinned element's position invalidateOnRefresh: true } }); } // Loop through each tab title and define ScrollTrigger const tabTitles = document.querySelectorAll(".vertical .tabs-title"); tabTitles.forEach((tabTitle, index) => { gsap.to(tabTitle, { scrollTrigger: { trigger: tabTitle, start: "top top", // Start when top of tab title reaches top of screen end: "bottom top", // End when bottom of tab title reaches top of screen scrub: true, invalidateOnRefresh: true, toggleClass: { targets: tabTitle, className: "is-active" }, onToggle: (self) => { const panelId = tabTitle.querySelector('a').getAttribute('href'); const panel = document.querySelector(panelId); } } }); }); <section class="primary-color full-width" > <div class="block-tab-container" id="pintrigger"> <?php if (have_rows('repeater_content_tab')) { $counter = 0; ?> <ul class="tabs vertical" data-responsive-accordion-tabs="small-accordion medium-tabs" data-multi-expand="true" id="<?php echo esc_attr($id); ?>"> <?php while (have_rows('repeater_content_tab')) { the_row(); $tab_heading = get_sub_field('tab_heading'); $counter++; ?> <li class="tabs-title"> <a href="#tab<?php echo $counter?>-<?php echo esc_attr($id); ?>" aria-selected="true"> <div class="tabs-title-container"> <div class="text"><?php echo $tab_heading ?></div> </div> </a> </li> <?php } ?> </ul> <?php $counter = 0; ?> </div> <div class="tabs-content secondary vertical" data-tabs-content="<?php echo esc_attr($id); ?>"> <?php while (have_rows('repeater_content_tab')) { the_row(); $tab_content = get_sub_field('tab_content'); $counter++; ?> <div class="tabs-panel" id="tab<?php echo $counter?>-<?php echo esc_attr($id); ?>"> <?php echo $tab_content ?> </div> <?php } ?> </div> <?php } ?> </div> </section>