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HomeEducationChris' Nook: Higher CSS Animation Receive US

Chris’ Nook: Higher CSS Animation Receive US

CSS animation guidelines. Simply take a look at… CodePen lol.

There was a (lengthy) time when it didn’t exist, although. My previous buddy Jonathan Snook wrote in 2007 that he didn’t like the concept of animation coming to CSS in any respect, however had changed his mind by 2009.

They’ve advanced a bit since these early days. They’re GPU-accelerated now. We don’t want vendor prefixes on the properties. We are able to animate extra properties, together with the values of Customized Properties (particularly if we type them). However they haven’t modified that a lot, and that’s one of many cool issues concerning the internet. Precise internet platform issues don’t change underneath our ft that dramatically, making them price studying as a result of that data has a protracted shelf life.

What additionally evolves is how individuals use them, greatest practices, and the intelligent methods that have to be found.

Right here’s one!

I noticed a weblog publish by Harold Cooper a short time again referred to as Spinning Diagrams with CSS. It’s since been gone’d from the web, however the ol’ archive caught it and I’ve made a Pen out of it, too, for posterity. Harold was displaying off mathematical formulation that benefitted from a 3D look, like this:

I fully wimped out there and used an animated GIF. However Harold didn’t:

A number of individuals expressed shock that the spinning diagrams don’t use any JavaScript or animated picture codecs, simply HTML and CSS. 

One of many cool elements of Harold’s difficult is utilizing one animation to spin issues, and one other animation to unspin them. Discover how the numbers at letters seem to maneuver in 3D area, however at all times “face ahead”. No one was desirous about that in 2007, I’ll inform ya that.

I keep in mind I first learn this publish over RSS and the animations labored even in RSS. In all probability as a result of the styling was inbuilt <fashion> blocks that my reader revered. So cool.


Josh Collinsworth wrote Ten tips for better CSS transitions and animations which is filled with good sensible stuff. Big fan of #1: “Make them shorter than you assume they need to be”. I don’t assume I’ve ever picked a transition-duration that didn’t get decrease and decrease over the time I performed with it, and even after deploying.

So many nice examples and real-world recommendation!

Chris' Nook: Higher CSS Animation Receive US Obtain US

Among the recommendation, like “don’t use browser defaults”, means then having to exchange easing with extra bespoke stuff ala cublic-bezier curves. Josh has a more in-depth post on that as nicely that could be very useful. I in all probability depend on browser defaults an excessive amount of in the case of these things, however typically after I play with customized curves they find yourself feeling worse to me. Possibly I shouldn’t simply take the very first thing Copilot offers me and truly perceive it.


Should you haven’t heard of After Dark, you’ve in all probability heard of Flying Toasters. It’s this iconic screensaver from the Nineteen Nineties the place, uh, flying toasters fly in sort-of 3D-looking area throughout your display screen. From the highest proper to the underside left, really.

Excellent news, Bryan Braun did it in CSS, together with all the other After Dark screensavers.

Chris' Nook: Higher CSS Animation Receive US Obtain US

… annnnnd he did that in 2014 which reveals you ways up to the mark I’m. (I like clicking on the Contributors web page of a repo because it clearly reveals you the yr of the primary commit.) You possibly can kinda get a really feel of the classic by seeing chunks of CSS like this:

      -webkit-animation: fly 10s linear infinite;
         -moz-animation: fly 10s linear infinite;
          -ms-animation: fly 10s linear infinite;
           -o-animation: fly 10s linear infinite;
              animation: fly 10s linear infinite;

That’s simply how we used to roll.


VERY NEW THING ALERT. I have to do a deeper dive on this however I believe it’s price mentioning right here proper now. I’m assuming you recognize what cubic-bezier() is, partially as a result of I actually linked to an article about it from Josh above.

Cubic bezier has 4 parameters. No extra. No much less.

The brand new factor right here is linear() which features instead for animation timing values, which might take any variety of values. Ollie Williams has a great article on it, and I’ll take a quote that he took as a result of it’s a pleasant fast abstract:

MDN explains the syntaxlinear(0, 0.25 75%, 1) produces a linear easing perform that spends 75% of the time transitioning from 0 to .25 and the final 25% transitioning from .25 to 1.”

A extra real-world instance seems like this:

animation-timing-function: linear(0, 0.218 2.1%, 0.862 6.5%, 1.114, 1.296 10.7%, 1.346, 1.37 12.9%, 1.373, 1.364 14.5%, 1.315 16.2%, 1.032 21.8%, 0.941 24%, 0.891 25.9%, 0.877, 0.869 27.8%, 0.87, 0.882 30.7%, 0.907 32.4%, 0.981 36.4%, 1.012 38.3%, 1.036,1.046 42.7% 44.1%, 1.042 45.7%, 0.996 53.3%, 0.988, 0.984 57.5%, 0.985 60.7%,1.001 68.1%, 1.006 72.2%, 0.998 86.7%, 1);

Fancy! There’s a 92% probability this might be generated by a device for you, like possibly this one, and others prone to spring up. Get it? Spring?

All these factors, nicely, there’s a straight line between them, which I suppose is why “linear” is the title. Nevertheless it’s form of a sucky title as a result of it makes you assume it’s going to behave just like the”linear” key phrase which is boring and straight all over. Oh nicely.

It’s best to in all probability learn Create complex animation curves in CSS with the linear() easing function by Bramus. Ben Holmes made a very clicky button I’ll make you click on over to click on.

Adam Argyle’s one-minute explanation will in all probability do you proper, as nicely.


Bear in mind when CSS nesting was coming of age and browser distributors have been placing out all these polls to get you to vote on the syntax? I believed that was kinda cool, regardless that each single individual was identical to “can or not it’s like Sass?” and they’re like “no” after which they made it identical to Sass.

However anyway!

I believed that’s what they have been doing with animation-composition in Bramus’ Specify how multiple animation effects should composite with animation-composition, but it surely seems he’s simply displaying us the best way to use it.

It’s just a little within the weeds actually, but it surely actually is one thing that comes up typically with animation. It helps with when a number of animations have an effect on the identical property. The remodel property is infamous for making this difficult as a result of one remodel is perhaps rotating a component, whereas one other is translate shifting it, however they’d overwrite one another up to now, so that you’d need to nest components or one thing. Now you’ll be able to substitute, add, or accumulate the values, which is actually fairly cool.

My first check was this considering it will work:

button 
  place: relative;
  animation-composition: accumulate;

  &:hover 
    translate: 0 1px;
  
  &:lively 
    translate: 0 1px;
  

However nope, I suppose pseudo-states like that absolutely substitute the opposite, so a button isn’t hovered and lively on the similar time? I dunno. Actually, it’s extra helpful with keyframes than transitions anyway.


OK, final thing I promise. Glorious video: Animation vs. Math.


#Chris #Nook #CSS #Animation

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