Delicious

I cannot count the number of times in my career I wished I could run JS in response to CSS property changes, regardless of what triggered them: media queries, user actions, or even other JS. Use cases abound. Here are some of mine: Implement higher level custom properties in components, where one custom property changes multiple others in nontrivial ways (e.g. a --variant: danger that sets 10 color tokens). Polyfill missing CSS features Change certain HTML attributes via CSS (hello --aria-expanded!) Set CSS properties based on other CSS properties without having to mirror them as custom properties The most recent time I needed this was to prototype an idea I had for Web Awesome, and I decided this was it: I’d either find a good, bulletproof solution, or I would build it myself. Spoiler alert: Oops, I did it again

Discover how to create a fully functional tabs component using Alpine.js. Learn key features, accessibility tips, and enhance your web development skills.

Leverage our handcrafted library of free Alpine components, designed with Tailwind CSS, to enhance your web projects.

An online SVG generator for various kinds of grid patterns that can then be used as visual decoration in web designs.

Use modern CSS to create fancy wavy boxes with a few lines of code

Do you write CSS? Do you use custom properties with calculations? Do you want to preview their values while you’re debugging them? What if you could do so by setting just one additional custom property? Without any JS? In this article, I present a native CSS mixin that will output various values as pseudo-elements.

The ::view-transition root overlay captures all clicks … but you can undo that.

Leaflet.js is a free open-source mapping library. We'll look at how to use it to create a basic map with location points of cats up for adoption.

The median web page has grown 8% in one year. How does this affect your Core Web Vitals, your search rank, your business and your users?

Combining HTMX and WordPress is a fantastic way to develop dynamic and interactive experiences without the need of a framework. I'll show you how to do it.

In this article, you'll learn how to make a full-on star rating component out of nothing but a single input element and vanilla CSS.

Prebuilt UI components and templates to make your next project addicting for your users. Less time on interactions, more time building products.

Build better with Web Awesome, the open source library of web components from Font Awesome.

Are we responding to the right inputs?

Support for Nested Container Queries and the CSS if() function inside CSS Custom Functions make @function very powerful.

My thesis for today's article offers further reassurance that inline conditionals are probably not the harbinger of the end of civilization: I reckon we can achieve the same functionality right now with style queries, which are gaining pretty good browser support.

The View Transitions API is more a set of features than it is about any one particular thing. And it gets complex fast. But in this post, we’ll cover a couple ways to dip your toes into the waters without having to dive in head-first.

Remove image backgrounds automatically in seconds with just one click. Don't spend hours manually doing it yourself.

Blendy, a framework-agnostic tool that smoothly transitions one element into another with just a few lines of code.

Frontend web developer, turned engineering manager.

Just four declarations in CSS can handle this nicely, while avoiding the vertical scrollbar issue.

I enjoy organizing code and find cascade layers a fantastic way to organize code explicitly as the cascade looks at it. The neat part is, that as much as it helps with "top-level" organization, cascade layers can be nested, which allows us to author more precise styles based on the cascade and inheritance.

Changing what I thought I knew about typesetting.

Blendy, a framework-agnostic tool that smoothly transitions one element into another with just a few lines of code.

Animated AVIF, AV1 video, JPEG-XL...

Are partials the only thing keeping you writing CSS in Sass? With a little configuration, it's possible to compile partial CSS files without a Sass dependency. Ryan Trimble has the details.

Prefer SVG over PNG, trust browsers to downscale, drop obscure formats—the ultimate, exhaustive guide to favicons for modern web. Includes steps for static HTML and Webpack.

Generate palettes for Tailwind v4 with P3 gamut colors in the Oklch space.

A how to guide on building an accessible tab component using Web Components.