One way to work with Custom Properties is to think of them as design tokens. Colors, spacings, fonts, and whatnot. You set them at the root of the page and use them throughout your CSS. Very useful, and the classic …
I’ve seen this confuse more than a handful of people recently, including myself, so I’m making sure it’s written down.…
I recently wrote a very basic Sass loop that outputs several padding and margin utility classes. Nothing fancy, really, just a Sass map with 11 spacing values, looped over to create classes for both padding and margin on each side. …
For quite a while now, the CSS spec has included a lot of really useful mathematical functions, such as trigonometric functions (sin(), cos(), tan(), asin(), acos(), atan(), atan2()), exponential functions (…
Let’s build a fully functioning and settable “analog” clock with CSS custom properties and the calc() function. Then we’ll convert it into a “digital” clock as well. All this with no JavaScript!…
Normally, a project will have a set of pre-determined font sizes, usually as variables named in such a way that seeks some semblance of order and consistency. Any project of considerable size can use something like that. There are always …
PPK laid out an interesting situation in “Two options for using custom properties” where he and Stefan Judis had two different approaches for doing the same thing with custom properties. In one approach, hover and focus styles for a …
Jonathan Neal tweeted a heck of a little CSS trick the other day, putting JSON inside CSS and plucking it out with JavaScript. Valid values for custom properties are quite liberal! So this looks for a CSS rule (e.g. a …
I love to make CSS do stuff it shouldn’t. It’s the type of problem-solving brain training you’d get building a calculator in Minecraft, except you probably won’t get a job working with Minecraft Redstone no matter how good you …
