if youre looking to enhance user experience on scroll-heavy pages with some smooth animations but want them only when needed - say during a specific section like testimonials, case studies or product galleries - you can use this css trick. its lightweight and keeps your overall page load fast.
heres how it works:
you apply the class `smooth-scroll` to elements that need smoother scroll transitions using javascript (or even vanilla js). then you define some basic styles for those sections in a media query, making sure theyre only applied when scrolling within specific areas. this way animations are smooth and performant.
/'' CSS ''/. smooth-section {overflow-y: auto;}@media screen(max-width) { /'' Adjust as needed based on your design ''/}// JSdocument. querySelectorAll('. smooth-scroll'). forEach(section =>section. addEventListener('scroll', function() {if (this. scrollTop> thresholdValue && this. clientHeight < window. innerHeight + section. offsetTop -20 ) {// Apply styles for smooth scroll here.}}))this approach ensures performance and enhances user experience only where its really needed. no more unnecessary overhead on sections that dont require fancy animations.
tip: always test your implementation across different devices to ensure the threshold values are set correctly so as not too trigger unnecessarily or fail silently when they should kick in!