Have you ever marveled at Apple’s slick product animations—especially the ones that unfold as you scroll? These “scrolly teardowns” usually rely on JavaScript and aren’t always responsive on smaller screens. But recent advances in CSS have made it possible to recreate such effects with pure style sheets. In this Q&A, we dive into how one developer tackled the Vision Pro animation using only CSS, making it both responsive and performant. From the “exploding hardware” sequence to the dramatic flip-up reveal, discover the techniques, challenges, and limitations of CSS-driven scroll animations.

1. What inspired the attempt to recreate Apple’s Vision Pro animation in pure CSS?

Apple’s product pages are famous for their cinematic scroll-triggered animations. Historically, these effects required JavaScript libraries like ScrollMagic or GSAP. However, CSS now offers native scroll-driven animation capabilities, making it possible to achieve similar results without a single line of JS. The developer wanted to prove CSS could handle not only the visual complexity of the Vision Pro’s “exploding hardware” and flip-up reveal but also remain fully responsive—something Apple’s own implementation fails at on narrower viewports. By using CSS only, the animation becomes lighter, more accessible, and easier to maintain.

2. What are the two main stages of the Vision Pro animation?

The animation breaks down into two distinct phases. Stage 1: “Exploding Hardware” shows three internal components rising one by one from the bottom of the Vision Pro device. These components—imagine them like a sub roll, hot dog bun, and bread stick—are layered to create depth. The outermost component appears both in front of and behind the others, thanks to two separate images. Stage 2: Flip-Up to Eyepieces then smoothly rotates the whole device upward to reveal its eyepieces, originally done with a JavaScript-controlled video. The CSS recreation tackles both stages using only styles and scroll-linked animations.

3. How does the “exploding hardware” stage create a 3D effect?

Each of the three components is represented by two images: one for the front and one for the back. The outermost component (“sub roll”) uses a front image that sits above everything else and a back image that stays behind the other components, making it seem to wrap around them. Similarly, the middle component (““hot dog bun”) envelops the innermost “bread stick.” Transparent areas in each image allow the parts behind to peek through, producing a convincing pseudo-3D stack. As the user scrolls down, each pair rises in sequence, with CSS controlling their positions relative to the viewport.

4. What major responsive challenge did the developer face?

Initially, the developer tried using position: fixed and position: absolute on img tags inside a div. This caused two problems: images would spill off the screen when the viewport shrank (not responsive), and the device couldn’t scroll into or out of view as it does on Apple’s site. After analyzing Apple’s code, they discovered a better approach: set each component as a background image on a container, using background-position: bottom center and background-size: contain. This keeps the images anchored to the bottom and scales them proportionally, making the whole animation fluid across screen sizes.

5. How does the CSS-only version handle the flip-up to eyepieces?

Apple’s original uses a video that advances with scrolling via JavaScript. In the CSS recreation, the developer replaced the video with a series of background images representing keyframes of the flip motion. Using CSS scroll-driven animations (like animation-timeline: scroll()), each image is shown at specific scroll positions, creating a flip-book effect. The rotation is faked by transitioning between these pre-captured frames. While not as smooth as a video, it demonstrates that a pure CSS approach can achieve a similar visual without any JS or external media assets.

6. What are the known limitations of the CSS-only approach?

The most significant limitation is browser support. At the time of writing, Firefox does not support CSS scroll-driven animations, so the effect won’t work there. Additionally, the flip-up stage uses a static set of frames rather than a fluid video, which can feel less polished. The “exploding hardware” stage also lacks the subtle micro-movements present in Apple’s original. However, for a pure CSS implementation, it’s a remarkable achievement that works in Chromium-based browsers and Edge. Developers should check canIUse for up-to-date compatibility.

7. Why choose CSS over JavaScript for scroll-based animations?

CSS-native scroll animations offer several advantages: they are declared in stylesheets, reducing JavaScript overhead and potential performance bottlenecks (especially on mobile). They naturally respect the browser’s rendering pipeline and can be more easily combined with responsive layouts using contain and background-size. Moreover, they eliminate the need for libraries, making the code lighter and simpler to maintain. The trade-off is currently limited browser support and less control over non-linear easing, but as the CSS Scroll-driven Animations specification matures, these techniques will become a powerful alternative to JavaScript-based scroll effects.