A guide to designing accessible, WCAG-compliant focus indicators — Sara Soueidan says you can make more accessible focus outlines by doing your own, rather than leaving it to the browser — as long as you do it right. Deep dive! a11y-syntax-highlighting — Eric Bailey’s repo of code syntax highlighting themes for a variety...

The SQL standard knows an interesting feature where you can project any functional dependencies of a primary (or unique) key that is listed in the GROUP BY clause without having to add that functional dependency to the GROUP BY clause explicitly. What does this mean? Consider this simple schema: CREATE TABLE author ( ...

There is an old Russian fable where Okhsv and Okhsl are on a rowboat and Okhsv says to Okhsl, “What are the known shortcomings of HSL and HSV color pickers in design applications?” I kid, I kid. But really, what are they? Björn Ottosson shows the two classics: Despite color picking playing a big role in a lot of applications,...

Vite, “Next Generation Frontend Tooling” from Evan You, has been capturing a lot of attention. I’ve heard rave reviews from developers, even in private chats (you gotta try this!). Being from Evan, Vite works great with Vue, but Vue doesn’t seem to be the only first-class citizen of Vite. The plugins support Vue and React...

This article is part of our “Advanced Git” series. Be sure to follow Tower on Twitter or sign up for their newsletter to hear about the next articles. Merge conflicts… Nobody likes them. Some of us even fear them. But they are a fact of life when you’re working with Git, especially when you’re teaming up with other developers....

(This is a sponsored post.) Kendo UI makes it possible to go from a basic idea to a full-fledged app, thanks to a massive component library. We’re talking well over 100 components that are ready for you to drop into your app at will, whether it’s React, Angular or Vue you’re working in — they just work. That is because...

I ran across this 30 seconds of code website the other day, and they have a CSS section which is really good! The first example snippet I looked at was this “floating section headers” example, reminding me yet again how satisfying definition lists can be. With nice simple HTML like this: <div class="floating-stack"> ...

A look from Christian Kozalla on the <dialog> HTML element and using it to create a nice-looking and accessible modal. CodePen Embed Fallback I’m attracted to the <dialog> element as it’s one of those “you get a lot for free” elements (even more so than the beloved <details> element) and it’s so easy...

Cypress is an automated test runner for browser-based applications and pages. I’ve used it for years to write end-to-end tests for web projects, and was happy to see recently that individual component testing had come to Cypress. I work on a large enterprise Vue application, and we already use Cypress for end-to-end tests....

We’ve covered URL schemes: A URL Scheme is like “http://…” or “ftp://…”. Those seem like a very low-level concept that you don’t have much control over, but actually, you do! I’d call it non-trivial, but developers can register new URL schemes in apps that users install. Back in 2017, Microsoft Edge did this: microsoft-edge://...