An animation technique I don't often see is what I call The Poof. Very simple: transition to a big-ass blur, opacity to 0 and scale up. Add in a skew and a translation in a direction for extra flair. Looks like the element disappears in a puff of smoke. I'm sure you can think of situations where this would be appropriate and satisfying. The reverse is also pretty impressive.

8:30 If you want this in CSS, there's another solution as well. We can use custom properties to achieve the same result: ```html ``` ```css .dot { animation-delay: calc(50ms * var(--i)); } ``` Basically, you don't declare custom properties in CSS, but rather in HTML with "indexing". Also, less code in your CSS. 🙂

Another animation/transtion trick I find really useful is that the visibility property can be animated. This can be useful for accessibility, since if you're doing something like animating an element's height to or from 0, you should be making it visibility hidden when it's collapsed so the user can't do stuff like tab into the hidden area with their keyboard focus. Because the visibility property has discrete values, they will flip at the midpoint of a transition or animation. But with animations you can "fix" this by putting two keyframes at the same point, so that midpoint is also at that point. But you can set up an animation with the same visibility value at 0% and 100%, so once the animation is over it will fall back to the value set directly on an element. That way, when you're hiding an element you can set its visibility to hidden, but give it a "stayVisible" animation to delay that value changing until your other animation or transition is complete. Of course this is all easy to do with JavaScript, but it's nice to know you can do it all right in your CSS instead.

Awesome information in that video! Maybe you could consider doing some sort of series "How CSS works under the hood"? In previous videos ,ou mentioned some things like "CSS parses the selectors from right to left" and stuff that I didn't know before. Moreover, I think many of us have no clue how CSS really works, and just know how to use it. (And you could build upon that series by another series about optimization :D) Would love to see something like that! 😊

Your content is so freaking good man. Thank you for all the help you do for the community!

Great advice from the CSS King! Thank you good sir.

Just a quick thanks! Your videos and quick tips and tricks have helped me understand how css works in a practical everday environment❤🎉

your passion for this is so evident. very inspiring stuff! thank you!

19:05 - this can also be achieved by animating the background position, having the gradient be 200% of the button width (going from red to blue back to red again) and then translate it's position -100%.

Fascinating concept about the transform rotate and the rotate counteracting each other…

Didn't know about prefers-reduced-motion and that it even is important for (simple) smooth scrolling, very interesting

I really love the property idea, thats so nice like we can do lot of things with that, especially the gradient one Hope it gets added in all browsers

I didn't know all of the tips you gave us :) ! Thanks 😀 I really like when you give tips and informations about accessibility.

As someone who comes from the native mobile world its always mind blowing how simple and elegant the web animation API is.

Kev your bonce needs a trim I thought you were about to topple over at one point 😂 Sorry it's my insane sense of humour :) Great vid as always.

As usual, you exceed expectations. Thank you for putting this video together

The last one is a gem 💎

Hey some minor feedback on your audio. You should throw your audio into an EQ plugin or app and tune down the lower frequencies a bit. The bass is a little loud so when turning up the volume to hear you better my system is punching a little hard for some vocals (which my system is equalized to produce music so it's pretty flat). Great video and good information!

WE LOVE YOU KEVIN! You've taught me so much the last several years! Thank you!

Awesome! Let's mix the gradient backgrounds with animation in another episode 👏😁

Very cool! @property is above my level yet, but I'm definitely gonna work in some @keyframe animation right now...

The T-shirt tho👕 W bro

i'll put a comment before watching, this video is going to be cool as always.

Thank you for the video Kevin. you are a master.

I am looking forward to CSS counters supporting returning numerical values instead of strings so we can just incrementally add delay or have more complex list indentations where you can have a left margin that doesn’t indent and everything right of it does.

Nice tips, the animation with only 50% really handy.

Thanks for the video sir 😄

Thanks for the video. As always very useful.

Awesome! it was very interesting stuffs! thanks for that!

19:08 Mind blown, this is a game changer!

Hey Kevin, Thanks for this. I was wondering how is you button centered in page? I was thinking there will be some classes you might have attached to button I don't see anyone. Have you added flex to button's parent container and then justify content center and align items centre? Just curious

Really enjoyed video and will definitely use this tricks! Thank you Kevin

Love you sir

We want hair tutorial

nice video! thank you so much for your great content. One question: in terms of SVG animation what do you think is better to use on a react-app project Gsap or lottie?

great video Kevin

I didn't remember that I had animation turned off in the system, probably did it for optimization. I don't agree that this should affect the animations in the browser

I'm looking forward an animation series 😬😬

Nice animations for games :) I guess -100ms animation-delay is like when u click it, it's like clicking it 100ms ago. Dots looks behaving that way starting at the top already when u click given that -value. Makes sense - back, + forward. Good 2c no JS for many effects. Great animations treats demo, maybe useful on projects someday. Thanks for holy week CSS treat - Cheers!

Thanks for this video

Hi Kevin, I've been doing a lot of reading into how to use custom @property . One thing I keep coming across that I'm not understanding is the use case for having an @property with `syntax: '

thanks for this

Brilliant!

Thanks 😊

Can we register custom properties in vanilla css by using @property method ??

Thanks CSS Pope.

You could do the n-th child delay in vanilla CSS with counters, right?

Please cover the Gsap Library is possible, it will be very useful.

Are you human? AWESOME! 😁

Hi sir, is there any solution for animation-delay not working with animation-timeline:view() ? Thank you!

This last tip about hovering gradient was amazing, is it crossbrowser solution?

do you use tailwind what are your views on it

Another great video, as usual, and I'm glad I had a small part in it. ☺ These are some great tips, and if anyone wants to go a little deeper into the negative delay thing, I have a part in one of my lectures where I tried to explain it in a more visual way. Feel free to take a look: kzfaq.info/get/bejne/ob6YZqh-1cewdqM.html

you mind doing loading animation

is there any way I can polyfill so that I can use @property in safari or other browsers that does not support that?

What's the theme you're using to have that kinda of effect on VSCode's open tabs?

The links aren’t in the description. I don’t know if I am the only one that sees that.

does the king like comments

The problem with Houdini is none of the specifications are past draft stage and that can result in many issues in the future, that is why Mozilla doesn’t support it.

W tips

why at his style is scss and not css

I feel like Firefox is falling behind, Even its implementation of :has() cannot detect changes to the DOM.

hmmm ... for me as a beginner in animation, that was totally spanish, not fully explained, too quickly jumped from line to line, and how javascript (which was not mentioned in the Title as beeing part of it) interfeares was by far not even guessable. hmm... spanish, chinese and cambodian, that is what I would answer, if you'd ask me how easy it is to understand.

у меня был рюкзак с ноутом

What is this haircut? 😂

I use “0%, 100%” to have a smooth infinite animation.

I'll ask ai to give me tips and follow those tips and order me a sandwich

Great video but your shirt is triggering me lmaoo

made too many mistakes. guy sucks

Nice