Search
The Power (and Fun) of Scope with CSS Custom Properties
27.11.2019
You’re probably already at least a little familiar with CSS variables. If not, here’s a two-second overview: they are really called custom properties, you set them in declaration blocks like --size: 1em and use them as values like font-size: var(--size);, they differ from preprocessor variables...
Patterns for Practical CSS Custom Properties Use
9.10.2019
I've been playing around with CSS Custom Properties to discover their power since browser support is finally at a place where we can use them in our production code. I’ve been using them in a number different ways and I’d love for you to get as excited about them as I am. They are so useful...
Collective #548
12.9.2019
Metronomes in JavaScript * VeoLuz * Logical Operations with CSS Variables * Can I Email * Simplicity (II)
Collective #548 was written by Pedro Botelho and published on Codrops
Using Custom Properties to Wrangle Variations in Keyframe Animations
12.9.2019
Have you ever wondered how to customize CSS animations keyframes without using any preprocessor feature, like mixins? I keep reaching for preprocessors for this reason, but it would so nice to drop yet one more dependency and go with vanilla CSS.
Well, I found a way to account for variations within...
Logical Operations with CSS Variables
11.9.2019
Very often, while using switch variables (a variable that's either 0 or 1, a concept that's explained in a greater detail in in this post), I wish I could perform logical operations on them. We don't have functions like not(var(--i)) or and(var(--i), var(--k)) in CSS, but we can emulate these...
Breaking CSS Custom Properties out of :root Might Be a Good Idea
27.3.2019
CSS Custom Properties have been a hot topic for a while now, with tons of great articles about them, from great primers on how they work to creative tutorials to do some real magic with them. If you’ve read more than one or two articles on the topic, then I’m sure you’ve noticed that they start...
Responsive Designs and CSS Custom Properties: Building a Flexible Grid System
26.2.2019
Last time, we looked at a few possible approaches for declaring and using CSS custom properties in responsive designs. In this article, we’ll take a closer look at CSS variables and how to use them in reusable components and modules. We will learn how to make our variables optional and set fallback...
Responsive Designs and CSS Custom Properties: Defining Variables and Breakpoints
25.2.2019
CSS custom properties (a.k.a. CSS variables) are becoming more and more popular. They finally reached decent browser support and are slowly making their way into various production environments. The popularity of custom properties shouldn’t come as a surprise, because they can be really helpful...
CSS Variables + calc() + rgb() = Enforcing High Contrast Colors
21.2.2019
As you may know, the recent updates and additions to CSS are extremely powerful. From Flexbox to Grid, and — what we’re concerned about here — Custom Properties (aka CSS variables), all of which make robust and dynamic layouts and interfaces easier than ever while opening up many other...
Slice and Dice a Disc with CSS
13.1.2019
I recently came across an interesting sliced disc design. The disc had a diagonal gradient and was split into horizontal slices, offset a bit from left to right. Naturally, I started to think what would the most efficient way of doing it with CSS be.
Sliced gradient disc.
The first thought...
DRY State Switching With CSS Variables: Fallbacks and Invalid Values
6.12.2018
This is the second post in a two-part series that looks into the way CSS variables can be used to make the code for complex layouts and interactions less difficult to write and a lot easier to maintain. The first installment walks through various use cases where this technique applies. This post...
DRY Switching with CSS Variables: The Difference of One Declaration
5.12.2018
This is the first post of a two-part series that looks into the way CSS variables can be used to make the code for complex layouts and interactions less difficult to write and a lot easier to maintain. This first installment walks through various use cases where this technique applies. The second...
How to Get and Set CSS Variable Values with JavaScript
8.10.2018
CSS variables are a very welcome addition to the language, despite them being incredibly basic. Sure we could use SASS or stylus but languages should never count on developers relying on frameworks and toolkits to accomplish what we know we need. And just like every other part of a webpage,...
1 Element CSS Rainbow Gradient Infinity
5.6.2018
I first got the idea to CSS something of the kind when I saw this gradient infinity logo by Infographic Paradise. The gradient doesn't look like in the original illustration, as I chose to generate the rainbow logically instead of using the Dev Tools picker or something like that, but other than...
Dark theme in a day
21.5.2018
Marcin Wichary has written a great piece that dives into how he used CSS Variables to create a night mode and high contrast theme in an app. There’s so many neat tricks about how to use CSS Variables (Chris has also looked at theming) as well as how to organize them (Andras Galante has...
A Strategy Guide To CSS Custom Properties
16.5.2018
CSS preprocessor variables and CSS custom properties (often referred to as "CSS variables") can do some of the same things, but are not the same.
Practical advice from Mike Riethmuller:
If it is alright to use static variables inside components, when should we use custom properties? Converting...