baliex6 hours ago
That sounds interesting but it would be a whole lot more interesting if the page was itself an example of said effect!
sourcecodeplz23 minutes ago
I've put together an example here but it doesn't seem to work in Firefox 151.0.2 (64-bit): https://favs.eu.org/parallax/
Edit: if the body has class="no-sda", it uses a js fallback.
jonahx2 hours ago
Or even linked to one!
dsmurrell5 hours ago
I was also looking for examples.
yashD185 hours ago
i was waiting for the effect to show up
mpeg6 hours ago
How does this compare to the classic css-native parallax effect? Before the scroll timeline APIs you'd use the "perspective" css property to create a container where the z plane is n pixels away from the screen, and then position each layer within it at a different z distance using transform: translateZ
That method is GPU accelerated too, so it is performant compared to some js solutions, and has worked well in every browser for around a decade
I like the idea of the scroll-timeline though, just keen to understand what the advantage is for this
dandepop5 hours ago
OP here, thanks for asking. While the `perspective` technique works too, it has the downside of needing a careful combination of scroller elements and properties.
This approach adds a single class to the image container and that's it. Plus you can control many aspects of the animation such as entry/exit ranges, and make it control other properties like opacity or color, for example.
I know browser support is still lacking, but it will get there eventually. I'm not using this in production code yet, but I think it's useful to experiment with these new CSS APIs.
semolinoan hour ago
This method should still support GPU acceleration, as `transform` (or rotate/scale/etc.) is the only property being animated. The benefit of animation-timeline seems to be that it's much easier to set up than a CSS perspective context.
som6 hours ago
No doubt quite a few folk with the same question. Keen to understand performance tradeoffs.
Obvious comparison note would be that the "new" method currently enjoys somewhat limited browser support (no Firefox without a flag, and only since Safari 26)
iainmerrick6 hours ago
I was wondering the same thing. That translateZ is a bit fiddly to get right, so I could believe this is a bit easier to use, maybe? And presumably this could be used for other properties besides position, like colors, opacity or blurs.
phelm6 hours ago
frereubu6 hours ago
There's me scrolling up and down and thinking "hey, it's not working!" But it's behind a flag on Firefox: https://caniuse.com/?search=view-timeline-name
frereubu4 hours ago
For people saying it's not working in any browser - do you have some kind of reduced motion preference setting turned on? I can imagine that would have an effect on something like this and it's definitely working in Chrome for me.
cj4 hours ago
Yes... there's a media query in the codepen disabling animation for people with reduced motion enabled.
werdnapk6 hours ago
It's been behind a flag for ages. Maybe because of performance issues?
goodmythical2 hours ago
Enabling (layout.css.scroll-driven-animations.enabled) and refreshing the codepen gives a "we crashed this to prevent a crash from an infinite loop" clicking to allow the infinite loops allowed me to see the animation.
Fedora 44 Kernel: x86_64 Linux 7.0.10-201.fc44.x86_64 Firefox 151.0.2
anssip6 hours ago
Noticed the same thing. In Mac Safari it works without setting any flags.
wnevets5 hours ago
Doesnt work on any browser for me
[deleted]4 hours agocollapsed
WithinReason6 hours ago
tried 4 browsers, didn't work in any of them
alpinisme6 hours ago
FWIW it works on iPhone safari
deckar012 hours ago
But it jumps around and flickers pretty bad. Chrome’s own demos in the docs don’t work at all.
https://developer.chrome.com/docs/css-ui/scroll-driven-anima...
Edit: Their reference works and has some really nice demos. Must be an iframe problem. https://scroll-driven-animations.style/#demos
layer84 hours ago
Only on iOS 26.
abejfehr5 hours ago
I don’t think it did for me. Are you on iOS 26?
Mashimo6 hours ago
Only worked for me on mobile (vivaldi android) not on vivaldi / chrome / edge on Desktop.
account426 hours ago
What an age where we need a pile of javascript as well as a bot check to demo a simple CSS trick.
zamadatix5 hours ago
The JS and bot check are for making additional functionality, beyond just showing the example, work easily. I.e. editing and sharing edits from a browser. If all you want is a static example, feel free to make it without these things.
sheept2 hours ago
A parallax effect has also long been possible with CSS 3D transforms. Here's a demo,[0][1] from the same person who made that CSS 3D FPS a while ago.[2]
[0]: https://www.keithclark.co.uk/articles/pure-css-parallax-webs...
[1]: blog: https://www.keithclark.co.uk/articles/pure-css-parallax-webs...
thomasikzelf6 hours ago
You can make some really cool stuff with css scroll animations. I used SVG paths with a scroll animated dash offset to draw an image while scrolling. Zero javascript, it feels so smooth. https://thomaswelter.nl (the background)
apsurd37 minutes ago
oh that's cool!
Can only see it on chrome though =/. I switched to Safari as the lesser of two data-harvesting evils. Or rather, with an iPhone I've already chosen my overlord. I also switched to Kagi. Trying to deGoogle myself.
rsyring5 hours ago
Android Firefox: there is no background image.
thomasikzelf5 hours ago
firefox android does not support CSS animation-timeline, and firefox desktop needs layout.css.scroll-driven-animations.enabled. This probably should not be used for any critical features.
Semaphor3 hours ago
This [0] seems to be the main meta bug, with [1] being for CSS and [2] for JS, for FF to ship it without the flag. There seems to be slow work towards it, kinda funny that FF was the first browser to have it (flag-gated, according to CIU) and now is the only one without it in stable ;)
[0]: https://bugzilla.mozilla.org/show_bug.cgi?id=1676779
mrcsmcln4 hours ago
I played around with this API some time ago. It’s simple and high-performance, but one feature I wish existed is damping. Scroll-driven animations are tied directly to the scroll timeline, so there’s no concept of the parallax object “catching up” to the scroll progress over, say, one second. From what I remember, `animation-timing-function` feels weird when you scroll, so it’s not the right solution. GSAP offers this, but it’s JS-only.
sillyboi6 hours ago
It would be awesome to put an interactive example right in the article.
Onplanaan hour ago
I was expecting a demo on the linked page itself. Interesting to let Codex or Claude Code do it :)
geuisan hour ago
Using css perspective for parallax has been around for years and is much simpler code.
thecaio2 hours ago
there is a special place in hell for pages like these that don't show examples
rohitsriram6 hours ago
Love the one-variable design where scale and translate stay in sync automatically, just wish Firefox would get off the flag already.
dandepop5 hours ago
Thanks!
hit8runan hour ago
I get motion sickness from this specific effect. Especially on high refresh rate screens.
duskdozer6 hours ago
In a world where it's increasingly overlooked, I'm glad the author mentions disabling it respecting user settings. I do think it should be reversed and only enabled with the `@media (prefers-reduced-motion: no-preference)`, but that is the opinion of someone who gets negative value from animations and is bemused by how much dev and compute time is spent on them.
albert_e4 hours ago
could this be combined with a sprite like image that shows a slightly different angle of the image with each step
i_am_a_peasant5 hours ago
Idk about anyone here but I find the effect disorienting.
amon_spek5 hours ago
Yes. I'm a little more sensitive than average, but not enough to turn off animations, and this is uncomfortable.
tantalor3 hours ago
Hey, where's the demo?
Theodores3 hours ago
Great. I tried the Google examples a while ago and got nowhere with it, time for another go, within the netherworld of SVG, to map to several different layers.
xuzhenpeng5 hours ago
[flagged]
swordlucky6663 hours ago
[dead]