Incredible scroll-based animations with CSS-only

Been playing with them a little bit up until now, and it's finally time time for a deep dive into scroll-timeline and the scroll() and view() value functions.
In this one I look at a few different effects, like a scroll watcher, fading in images as they enter the viewport, moving elements horizontally as we scroll down, and a few more things as we explore everything we can do with scroll-timeline, and I also get into the Polyfill and some of it's limitations as well.
🔗 Links
✅ The Polyfill: github.com/flackr/scroll-time...
✅ Parallax effect using scroll-timeline: • True parallax with CSS...
✅ Overflow: clip: • 2 better alternatives ...
⌚ Timestamps
00:00 - Introduction
00:28 - scroll watcher
02:43 - a bit more on the scroll() function
04:02 - fade in images as they enter the viewport with view()
06:14 - offsets with the view() function
08:40 - the animation-range property
12:18 - prefers-reduced-motion
14:20 - entry and exit keywords for animation-range
16:04 - working with scrollbars that are not the main viewport
20:33 - the hero area animation
26:49 - browser support
#css
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[@cmukama]

This is exactly what I needed to refactor out an old JS animation library. The creator left 3 years ago and nobody knew how to deal with it. Thank you Kevin

[@KevinPowell]

Just watch out for browser support, since it's far from perfect! The polyfill helps, but as I show near the end, it isn't perfect.

[@hungry_khid1007]

Huh? U dont know javascript?

[@cmukama]

@@hungry_khid1007 It's 5MBs of minified javascript. My 12 years of JS experience are useless here

[@lian1238]

You can have javascript update a css variable in your DOM whenever the user scrolls. The variable can be absolute pixels or a percentage of the total height.

[@santoshparker8681]

We all are blessed to have a teacher like you kevin .

[@KOBE42__]

I’m beginning to love CSS so much more these days. I really appreciate your work in keeping us in the loop with the latest CSS functionalities. 👌

[@alirahmani5601]

Really appreciate the longer content; keeping the quality even as far as shooting after editing, thanks for that :)

[@MrWhiteav6]

Kevin, I just wanted to say I've been watching your videos since I first started learning to code. I've moved on to Mobile App development with RN but I still build websites and need help with CSS and you are the GURU! You are also just a pleasure to learn from, I love your personality. Keep being you man! Thanks for all the help!

[@ScottMackey]

Just an amazing demo and explanation Kevin!! It's so nice to see the css is close to where is should be, handling all the basic animation and visuals that javascript had to do for css. Thanks again 🙂

[@m.arslansarwar9449]

You've made me love CSS. You've no idea how much you're helping us with your content.

[@albedesigns]

Absolutely! Kevin is my go to guy to understanding & learning the more advanced CSS.

[@rebell570]

It's so cool to see more and more animation functionality becoming built-in to CSS. 👍🏻

[@prathmeshkalehere]

yeah its great

[@ellisj98]

I can’t believe this wasn’t in CSS before in hindsight.. it’s such a good feature. It’s also great to have it native in CSS as it can be easily disabled and enabled depending on the users motion settings.

[@MoussaSaiditv]

This is the most amazing tutorial I've ever watched. Amazing feature and the way you expalained it made it looks easy. Thank you ❤

[@AnthonyGruba]

This is so good, 5 minutes and I know exactly what I was looking for! I have to watch everything if just 5 minutes gave me that much

[@WUOTH]

Thank you and perfect timing, just what I need for an ongoing project :)

[@hw5622]

Amazing! I was looking for how to do this with simple css. Thank you so much!

[@fksociety137]

Love it! Great post as usual Kevin!

[@tomcat1112k]

thank you for the amazing thoroght video Kevin. Loved it. i'll use the banner animation in my university assignment. and I'll obviously give you credit for this in the reference.

[@brobinbraauw5523]

this video is so good, thanks a bunch! Going to start using it for my own projects right away!

[@leifn]

Thank you for this great introduction! Especially the part about the animation ranges would be a pain to figure out by oneself.

[@dixxixio]

I really learn a lot from your channel. Thank you for your generous hardwork.

[@mimoduocss]

I was looking for viewport based animation timeline and it was view() the entire time! My brain is too mushy for MDN docs, thank you!

[@combinio9533]

I truly appreciate Your css skills. Also, great teaching approach! Thanks for sharing :))

[@fersahahmet9597]

that was awsome, exciting to learn and again Kevin ,thank you

[@christophedelobel3904]

POWER of CSS, thanks for this demo.

[@randomforest_dev]

The future is bright for CSS! thanks for the video.

[@mohammadmahdialvansaz8001]

this is just what i need right now. thank you

[@alphawebtips2950]

Thank you, Kevin. I'm definitely trying these out.

[@kokapeli]

This is so awesome! Great video, thank you!

[@PacificDev]

too late to watch it at 1am, but I know I'll need this at some point so saved and liked 👍! I should pay you a coffee at some point for all tips and tricks I learned from you. Thanks for the amazing work Kevin 🙌

[@LorenzoGasperoni]

This video teach me so many new features. AWESOME! Thanks a lot!

[@k16e]

The MDN of CSS on YT. How otherwise would I know of this sort of CSS-orcery but for Mr. Powell! Thanks, sir!

[@krutikabarad4241]

thank you! needed this to get started on animation

[@adrianperdomollerena5884]

Dude you are awesome, Ive always loved CSS but you make it even cooler to be a front end dev, now I can talk about reducing javascript and interception observers at work so we can add more nice animations

[@maximilianoInfinito]

Thanks for sharing this! Kevin you are awesome!

[@josephm.6676]

@Kevin great topic choice. 👏 🎉 Love to see this!

[@simonswiss]

I finally understood the difference between "cover" and "contain" thanks to this video!

[@EmmanuelB]

that's incredibly useful and powerful! Thanks!

[@seeds.ffmpeg]

I'm assuming scroll looks at the stacking context by default, it's neat you can pass it root. Thanks a lot for the video! You're the reason I've been keeping up with new CSS features.

[@WarehouseDev]

Amazing what you can achieve with only CSS these days! Thanks, Kevin

[@GilGoldshlager]

Great stuff, will use it for sure 👍👍👍

[@havefun5519]

Nice step-by-step tut.

[@user-of2bi9vo2l]

You are great person, keep doing, you make people happier

[@avivperets7360]

Damn i can watch your work for days haha, Thanks alot you gave me lots of inspiration from this video

[@mrnabby4178]

Learnt a lot of things. Thanks sir.

[@trinidadfaccini1006]

thank you for this tutorial, amazing explanations loved that you mention the small -but big- considerations that we must have when creating a website so that it is accessible and navigable for everyone

[@Cognitoman]

Safari and Firefox is a no go

[@mouhamadalmounayar2199]

I love this dude because he actually explains things.

[@znkdev]

perfection! Thanks fo it

[@albedesigns]

This is perfect... exactly what I was hoping to be able to do without JS. CSS really is amazing!

[@portfedh]

very cool! Thank you for teaching this!

[@notenoughreddit5618]

Thanks for sharing this with us. I'm loving css slowly now. Is there a video you have covering the overflow in mobile? I've been struggling with making it scrollable

[@khuramchef6521]

You are making great points that are in-trending Thank you @Kevin

[@skyfall2984]

Thank you very much for what you teaching us here.. god bless you

[@0muhammedirfan]

Thanks alot bro❤

[@gholapyash]

Thanks sir, This is what I was looking for and this is gonna help me to make my portfolio much better without using that old library 🙏🏻

[@corykey9187]

Wow I discovered line-height: 1cap and this in one week. Game-changing times. Thanks!

[@SamuelCoupland]

So good!

[@kevinfisher7032]

Wow CSS is really kicking it these days! On a side note it’s interesting that the “forget-that-we-do-it-this-way- now” cycle is getting shorter and shorter. It’s seems like only yesterday we were struggling with intersection observers and now….oh, forget all that... we have a few lines of CSS now :-)

[@emmanuelmantilla1465]

You're great Kevin, who would thought now we can use CSS instead of intersecting everything

[@BloosterOne]

You are amazing bro!

[@rodrigonoales]

Hi Kevin, great video... question, did you test this with native lazy load for the images ? I mean, does lazy load break the visual effect in any way, like jumps in animation or it still works smoothly as it loads the assets? Thank you !!

[@BrendansReasons]

learning so much so quickly here

[@user-km9vl9ck9u]

awesome video again!

[@olusanyaayomide5336]

Perfect video You're amazing kevin

[@carbellsarfo]

This was so helpful Kevin. The part about animating the hero section, The animations are not working, when I copy the same code and put it anywhere else, they work perfectly.

[@user-px5uy4vd7q]

you saved us legend

[@paweliszka44]

I was totally at that point "ohh @animations why I miss that exists LOL" you made my day :)

[@avi12]

12:39 Rather than wrapping the CSS with a media query, it's easier to set the animation as intended and then add in a reduced motion media query that resets the animations on the page

[@SrinivasReddy07]

CSS God @Kevin Powell. This is awesome, learned a lot. Thank you Kevin.

[@___rituraj___]

Hey man, when it comes to CSS , you always rock and outshine others🚀🔥 So why don't you curate a structured playlist by arranging all your made videos in such a way that a beginner can learn CSS from basics to advance and such playlist will also get a good reach. It will also help self taught programmers to learn from one place instead of hopping from one resource to another.

[@jeremyhorne6244]

Thanks Kevin!

[@user-tv7ny7zd5k]

Oh Kevin!! You are the boss❤❤.

[@andreaskarz]

Amazing stuff 😲

[@user-ru8hn9hb5c]

What a time to be alive!

[@DmitryLapshukov]

Fire🔥

[@user-ym7gg5ki6l]

Thank you!!!

[@MikkoRantalainen]

Great video! All I can say about this feature is that it sure took a long time until a standard method to do this appeared. And it'll still take some time until it will be supported in all browsers. And if you want to see support for this in all browsers sooner, DO NOT USE POLYFILLS. When end users see that their browser cannot show fancy effects, they will switch to better browsers - which puts a lot of pressure to the developers of the browser that doesn't yet support these effects to implement them. Remember that you must always make the content usable without scroll effects because some users opt out of animations because of health issues so you should definitely not try to force effects on them.

[@udit.roshan]

This makes EVERYTHING so easy now.

[@rezalaal]

Awsome! Thanks

[@jaynegi]

You are awesome Kevin hat's off to you 🎉🎉

[@TusharDeshmukh-rf6bk]

Superb content

[@MichaelJoseph83]

You're the goat Kevin

[@madisonkeck1230]

Thanks!

[@sicfxmusic]

Dope 🔥🔥

[@erikvanzanen]

Ok, here I am using a Jscript to make an image move from left to right, from a certain point you scroll by on the page. This is great

[@rafelgrau]

Just that you will not be able to use it until at least one more year, that is if you put it in a commercial webpage

[@lmd4881]

brilliant :) would be brilliant with a full on course with various projects - would gladly pay for that!

[@vanesanchez5578]

jojo! Sufrí mucho para lograrlo 😅 porque agregué el efecto a un sitio ya hecho con Tailwind, pero se logró y aprendí! 💪 Gracias!

[@021_sayandas5]

Thank You so sooo muchh❤... This video is gem... now I don't have to learn a new js library🙊

[@tenzinl6221]

this is great, Kevin! 😮😄😃

[@memcap]

Do you experience a horizontal scrollbar issue when scaling the background image up in "the hero area animation" section of this video? It seems that we need to set overflow to not be hidden in order to use the view() and scroll() CSS functions. This animation appears to distort layouts by increasing the width of the container of the background. (Chrome on Windows.) Great content. Thanks for your efforts.

[@BLKMARKET]

Wow this is crazy

[@uifry]

Awesome :)

[@ometaxas]

Amazing video. Thank you. I just wanna code like right now!

[@RodrigoNishino]

Very nice! Merry Chirstmas

[@andrejkocsis4671]

Impressive

[@GarethField]

I love that he leaves in the naming whoopsies and everything, it’s such an affirming, “*You* *can* code!”

[@romuloscamargos3956]

The best.

[@freqtion]

wow. that's cool

[@khaledfarghly6480]

Man You have just choked me by the fact that there is a something new in CSS called @animation and I didn't hear about it.

[@myfreedom42]

that dont works on firefox... so unable to use it in production. Do you know when FF will add this CSS update ?

[@muxriddinabdurasulov9153]

I am confusing. No words. Kevin is the best

[@facundomdelp]

Thanks for the video! I was wandering if is it possible to start a standard time animation when the view hit a certain point. Let's say that when the view is entry 20%, then the element would move with a standard 300ms animation. 😊

[@kevin053100]

謝謝！

[@KevinPowell]

Thank you so much!