30+ CSS Scroll-Driven Animations

The “Scroll-Driven CSS Alphabet Indicator Sidebar” connects a scrollable contact list to a sidebar index using CSS Scroll-Driven Animations. It defines a timeline-scope on the parent and a view-timeline on each alphabetical section. Floating sidebar letters scale dynamically as sections cross the viewport, creating smooth, scroll-linked feedback without high-overhead JS scroll listeners. (Requires: react.js, react-dom.js, faker.js)

Interactive CSS Tear Strip Animation simulates the satisfying physical action of tearing open a cardboard package. It cleverly uses an invisible <input type="range"> linked to the CSS Scroll-Driven Animations API (animation-timeline: --thumb). As the user drags the slider, CSS variables dynamically update clip-path, box-shadow, and transform properties to reveal the content beneath while curling the torn strip. A JavaScript fallback ensures compatibility for browsers without native scroll-timeline support.

Scroll-Driven Crawling Border Frame draws a colorful frame around the viewport as the user scrolls. Utilizing native CSS Scroll-Driven Animations (animation-timeline: scroll()) and sequence keyframes, the borders of two fixed elements expand in height and width. The styling utilizes modern oklch() color math for a vibrant gradient. Clean, pure CSS decoration with no JS overhead.

Pure CSS Scroll-Driven macOS iOS Dock recreates Apple’s legendary dock using the native CSS Scroll-Driven Animations API. Icons dynamically scale, blur, and shift depth completely without JavaScript. Utilizing @supports (animation-timeline: scroll()), the layout safely handles horizontal and vertical snaps. A zero-dependency, ultra-lightweight demonstrator of modern CSS capabilities. (Requires: gsap.js, scroll-trigger.js)

This is an Animated Scroll Highlight Annotations component. It combines a spatial theme toggle with progressive reading indicators that colorfully highlight key text passages as they enter the viewport. Its function is to enhance long-form reading experiences by guiding the user’s eye to critical information through contextual, scroll-bound motion.

This is a Scroll-Driven Radial Gallery. It binds a circular, rotating layout directly to the viewport’s scroll position. Its function is to transform linear page scrolling into a dynamic, spatial carousel, keeping only the active item in sharp focus while pushing others into a blurred, grayscale periphery.

This is a Resizing Tab Bar with Anchor Positioning. It demonstrates a modern approach to building a horizontally scrollable navigation menu with a sliding “active” indicator. Its function is to provide a highly fluid, decoupled visual highlighter that perfectly tracks the currently selected tab — even when the container is resized or scrolled — without relying on heavy JavaScript coordinate calculations. (Requires: Normalize.css)

This is a Scroll-Driven Glowing Slider. It completely restyles a standard <input type="range"> into a high-fidelity, glowing interface component. Its primary function is to demonstrate how experimental CSS features (animation-timeline: scroll()) can link native input states directly to complex visual changes — like a dynamically resizing, blurred glowing track — without relying on heavy JavaScript event listeners. (Requires: Tweakpane, Normalize.css)

This is a Scroll-Driven Sticky Parallax Header. It replaces static profile headers with a deeply integrated, cinematic scrolling experience. Its function is to transform a large hero image and avatar into a compact, sticky navigation bar, using native CSS animation-timeline: scroll() to orchestrate complex parallax, scaling, and fading effects without any JavaScript. (Requires: Open Props)

This is a Scroll-Driven View Transitions component. It simulates app-like, full-screen transitions between content sections using only native CSS properties. Its function is to replace traditional vertical scrolling with a more engaging, cinematic experience, where each scroll action triggers a complex animation (like a “melt”, slide, or zoom) rather than a simple positional change.

This is a Scroll-Driven Circular Typographic Scramble. It utilizes experimental CSS animation-timeline to bind complex trigonometric and geometric transitions directly to the user’s scrollbar. Its function is to create a highly engaging, interactive hero section where chaotic, scattered letters perfectly align into a readable circular sentence as the user scrolls down.

This is a Scroll-Animated Bootstrap Accordion Timeline. It structures sequential data into a central vertical axis, combining visual anchor points (images) with collapsible text modules (accordions). Its function is to compress dense historical or process-oriented information into a scannable format. Nodes remain hidden until scrolled into the viewport, forcing user focus on the active temporal step. (Requires: bootstrap, font-awesome)

Scroll-Driven Sticky Text Reveal is a high-end typographic interface. It utilizes modern CSS scroll timelines to synchronize the visual state of a list with the user’s scroll position. As items move through a designated “focal point,” they transition from a dimmed state to a vibrant highlight, creating a seamless reading experience. (Requires: tweakpane)

Inputs are usually dumb components; they report values but rarely visualize them meaningfully. This slider breaks that mold. It uses the cutting-edge Scroll-Driven Animations API to map the “thumb’s” movement directly to the visual output — without a single line of JavaScript logic for the animation. It creates a tactile, liquid connection between the user’s action and the “mixing” of coffee and milk.

This 3D Rotating iOS Time Picker recreates the tactile feel of native mobile controls on the web. It features three independently rotating wheels (Hours, Minutes, Meridiem) that snap into place with satisfying physics. The component leverages the cutting-edge Scroll-driven Animations API for buttery-smooth performance on supported browsers, while seamlessly falling back to GSAP for others. The 3D perspective creates a “drum” effect where numbers fade and rotate away as they leave the center view. (Requires: GSAP, Draggable, InertiaPlugin, Tweakpane)

This Scroll-Driven Masonry Reveal creates a playful, tactile experience where content cards appear to be “dealt” onto the screen as the user scrolls. By leveraging the native CSS Scroll-driven Animations API, it achieves smooth, main-thread-free entrance effects without a single line of JavaScript. The layout adapts intelligently from 2 to 8 columns, making it a robust solution for image galleries or blog archives. (Requires: Open Props (CSS Library))

This Scroll-Linked View Transition Header demonstrates a cinematic UI pattern common in music apps like Spotify. It uses the View Transition API to morph a large album hero section into a compact, sticky navigation bar, but with a twist: the animation progress is scrubbed directly by the user’s scroll position rather than a fixed timer. (Requires: @bramus/sda-utilities)

This Scroll-Driven Image Swapper demonstrates the bleeding edge of web animation. It uses the native CSS Scroll-driven Animations API to create a complex parallax-like effect where two columns of different heights scroll in sync. As you scroll, the images in the shorter column slide and crossfade to match the context of the taller column. Crucially, the code implements a Progressive Enhancement strategy: it checks for native browser support and falls back to GSAP ScrollTrigger for browsers that haven’t implemented the spec yet. (Requires: GSAP, ScrollTrigger)

An elegant, kinetic, presentation-like website that uses scrolling to drive deep, layered animation and audio feedback.

A fluid, tactile selection interface where elements “live” and react to scroll, creating a “fisheye” or lens effect.

A horizontal scroll interface featuring a “lens” effect powered by CSS Scroll-Driven Animations (animation-timeline: view(inline)).

This demo uses a single scroll event listener to calculate the individual progress of each list item as it enters the viewport. The progress value is then passed to a CSS Custom Property, which drives a staggered transform: scale() and opacity animation for a fluid, app-like reveal effect.

A complex technical example demonstrating how to ensure animation functionality even without CSS animation-timeline: scroll() support. The code first checks for support and, if absent, uses GSAP ScrollTrigger as a polyfill for scroll-driven animation.

Using experimental CSS features to build an advanced UI component, showcasing CSS Anchoring to attach the tooltip to the slider and Scroll-Driven Animations to drive the slider’s value and color change.

A demonstration of the new CSS Scroll-Driven Animations (SDA) API, where the scroll position of the entire page directly drives a complex, scaling, and rotating grid of images, achieving a high-performance, engaging visual effect purely with CSS.

A dynamic React list component with search and filtering features, demonstrating optimized user experience by automatically sorting checked items to the top of the list, thereby enhancing navigation.

A truly modern image flow powered by CSS Scroll-driven Animations and view-timeline. This demo uses pure CSS to create a 3D perspective effect where images pop out and rotate as they enter the viewport, with no JavaScript required.

This scroll-driven animation effect is built entirely with CSS Scroll-Driven Animations, using animation-timeline: scroll(). It smoothly translates and transforms elements based on scroll position, creating a dynamic and high-performance parallax effect without JavaScript.

A parallax effect implemented entirely in pure CSS using animation-timeline: view(). This modern solution ensures high performance as the animation is tied directly to the scroll position, eliminating the need for JavaScript.

A mesmerizing scroll-driven image grid powered by the cutting-edge animation-timeline: view() CSS property and the <css-doodle> web component.