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Animating Layouts with the FLIP Technique

User interfaces are most effective when they are intuitive and easily understandable to the user. Animation plays a major role in this – as Nick Babich said, animation brings user interfaces to life. However, adding meaningful transitions and micro-interactions is often an afterthought, or something that is “nice to have” if time permits. All too often, we experience web apps that simply “jump” from view to view without giving the user time to process what just happened in the …


Animating Layouts with the FLIP Technique is a post from CSS-Tricks

Robust React User Interfaces with Finite State Machines

User interfaces can be expressed by two things:

  1. The state of the UI
  2. Actions that can change that state

From credit card payment devices and gas pump screens to the software that your company creates, user interfaces react to the actions of the user and other sources and change their state accordingly. This concept isn’t just limited to technology, it’s a fundamental part of how everything works:

For every action, there is an equal and opposite reaction.

– Isaac Newton…


Robust React User Interfaces with Finite State Machines is a post from CSS-Tricks

Robust React User Interfaces with Finite State Machines

User interfaces can be expressed by two things:

  1. The state of the UI
  2. Actions that can change that state

From credit card payment devices and gas pump screens to the software that your company creates, user interfaces react to the actions of the user and other sources and change their state accordingly. This concept isn’t just limited to technology, it’s a fundamental part of how everything works:

For every action, there is an equal and opposite reaction.

– Isaac Newton…


Robust React User Interfaces with Finite State Machines is a post from CSS-Tricks

Emulating CSS Timing Functions with JavaScript

CSS animations and transitions are great! However, while recently toying with an idea, I got really frustrated with the fact that gradients are only animatable in Edge (and IE 10+). Yes, we can do all sorts of tricks with background-position, background-size, background-blend-mode or even opacity and transform on a pseudo-element/ child, but sometimes these are just not enough. Not to mention that we run into similar problems when wanting to animate SVG attributes without a CSS correspondent.

Using …


Emulating CSS Timing Functions with JavaScript is a post from CSS-Tricks

Creating Vue.js Transitions & Animations

My last two projects hurled me into the JAMstack. SPAs, headless content management, static generation… you name it. More importantly, they gave me the opportunity to learn Vue.js. More than “Build a To-Do App” Vue.js, I got to ship real-life, production-ready Vue apps.

The agency behind Snipcart (Spektrum) wanted to start using decoupled JavaScript frameworks for small to medium sites. Before using them on client projects, however, they chose to experiment on themselves. After a few of my …


Creating Vue.js Transitions & Animations is a post from CSS-Tricks

Writing Smarter Animation Code

If you’ve ever coded an animation that’s longer than 10 seconds with dozens or even hundreds of choreographed elements, you know how challenging it can be to avoid the dreaded “wall of code”. Worse yet, editing an animation that was built by someone else (or even yourself 2 months ago) can be nightmarish.

In these videos, I’ll show you the techniques that the pros use keep their code clean, manageable, and easy to revise. Scripted animation provides you the opportunity …


Writing Smarter Animation Code is a post from CSS-Tricks

Repeatable, Staggered Animation Three Ways: Sass, GSAP and Web Animations API

Staggered animation, also known as “follow through” or “overlapping action” is one of the twelve Disney principles of animation as defined by Ollie Johnston and Frank Thomas in their 1981 book “The Illusion of Life”. At its core, the concept deals with animating objects in delayed succession to produce fluid motion.

The technique doesn’t only apply to cute character animations though. The Motion design aspect of a digital interface has significant implications on UX, user perception and “feel”. Google even …


Repeatable, Staggered Animation Three Ways: Sass, GSAP and Web Animations API is a post from CSS-Tricks

Animating Single Div Art

One thing that single div pieces rarely do is animate. If you can transform your div or one of its pseudo elements, that’s fair (as Lynn Fisher does with her fantastic BB-8). But you cannot directly change the opacity or transform of the individual “elements” you create inside your div, since they are not actual DOM elements.

I am a big believer of trying something a little different and interesting to learn tools you otherwise might never learn. Working with the constraints of a single div might not be great for production work, but it can be a great exercise (and challenge) to stretch your skills in a fun way. In that spirit, we’ll use this technique to explore how Custom Properties (CSS Variables) work and even provide us a path to animation inside our div.


Animating Single Div Art is a post from CSS-Tricks

Snap Animation States

There are many ways to make icons for a website. Inline SVG is scalable, easy to modify with CSS, and can even be animated. If you’re interested in learning more about the merits of using inline SVG, I recommend reading Inline SVG vs Icon Fonts. With ever increasing browser support, there’s never been a better time to start working with SVGs. Snap Animation States is a JavaScript plugin built around Snap.svg to help create and extend icon libraries with …


Snap Animation States is a post from CSS-Tricks

Building Performant Expand & Collapse Animations

It’s starting to be pretty common knowledge that there are only 2 things you can animate cheaply in CSS: opacity and transforms. Anything else, you run a high risk of that animation/transition being choppy. Fortunately, there is a ton of animation possibility with those properties, especially since transform can move and resize elements any-which-way.

You can even get tricky and fake the animating of other properties with transforms. In this tutorial on the Google Chrome Developers Blog, Paul Lewis and …


Building Performant Expand & Collapse Animations is a post from CSS-Tricks