Category: custom properties

1 Element CSS Rainbow Gradient Infinity

I first got the idea to CSS something of the kind when I saw this gradient infinity logo by Infographic Paradise: The original gradient infinity. After four hours and some twenty minutes, of which over four hours were spent on tweaking positioning, edges and highlights… I finally had the result below: My vers...

Dark theme in a day

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 an interesting take on this) in...

A Strategy Guide To CSS Custom Properties

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 existing pre...

CSS Environment Variables

We were all introduced to the env() function in CSS when all that drama about “The Notch” and the iPhone X was going down. The way that Apple landed on helping us move content away from those “unsafe” areas was to provide us essentially hard-coded variables to use: padding: env(safe-area-inse...

The CSS attr() function got nothin’ on custom properties

Normally, the connection between CSS and HTML is that CSS selectors match HTML elements, and the CSS styles them. CSS doesn’t know about the actual content in the HTML. But there is a way CSS can get its hands on data in HTML, so long as that data is within an attribute on that HTML element. It’s like this...

Creating Yin and Yang Loaders On the Web

I came across a couple such animations a while ago and this gave me the idea of creating my own versions with as little code as possible, no external libraries, using various methods, some of which take advantage of more recent features we can use these days, such as CSS variables. This article is going to guide you th...

Animating Single Div Art

When you dig deep with your tools, it is amazing what you can create out of the most basic of HTML. I have been constantly impressed with “Single Div Art” by Lynn Fisher and others where you take a single generic <div> to create a beautiful cactus, Alamo, or panda. See the Pen #dailycssimages 01: Bear...

Simplifying CSS Cubes with Custom Properties

I know there are a ton of pure CSS cube tutorials out there. I’ve done a few myself. But for mid-2017, when CSS Custom Properties are supported in all major desktop browsers, they all feel… outdated and very WET. I thought I should do something to fix this problem, so this article was born. It’s going...

The Issue with Preprocessing CSS Custom Properties

CSS has Custom Properties now. We’ve written about them a bunch lately. Browser support is good, but of course, old non-evergreen browsers like Internet Explorer don’t have them and never will. I can see the appeal of authoring with “future CSS”, and letting a preprocessor backport it to CSS tha...

CSS Custom Properties and Theming

We posted not long ago about the difference between native CSS variables (custom properties) and preprocessor variables. There are a few esoteric things preprocessor variables can do that native variables cannot, but for the most part, native variables can do the same things. But, they are more powerful because of how ...