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Styling the space between layout items — the gap — has typically required some clever workarounds. But a new CSS feature changes all that with just a few simple CSS properties that make it easy, yet also flexible, to display styled separators between your layout items.

The Gap Strikes Back: Now Stylable originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

Being the bad boy I am, I don't take Tailwind's default approach to cascade layers as the "best" one. Over a year experimenting with Tailwind and vanilla CSS, I've come across what I believe is a better solution.

Using CSS Cascade Layers With Tailwind Utilities originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

Blob, Blob, Blob. What's the most effective way to create blob shapes in CSS? Turns out, as always, there are many. Let's compare them together!

CSS Blob Recipes originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

KelpUI is new library that Chris Ferdinandi is developing, designed to leverage newer CSS features and Web Components. I've enjoyed following Chris as he's published an ongoing series of articles detailing his thought process behind the library, getting deep into his approach. You really get a clear picture of his strategy and I love it.

KelpUI originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

The CSS if() function enables us to use values conditionally, but what exactly does if() do? Let's look at a possible real-world use case.

Poking at the CSS if() Function a Little More: Conditional Color Theming originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

The CSS if() function was recently implemented in Chrome 137, making it the first instance where we have it supported by a mainstream browser. Let's poke at it a bit at a very high level.

Lightly Poking at the CSS if() Function in Chrome 137 originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

Zell discusses refactoring the Resize, Mutation, and Intersection Observer APIs for easier usage, demonstrating how to implement callback and event listener patterns, while highlighting available options and methods.

A Better API for the Intersection and Mutation Observers originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

An introduction to "Color spaces", "Color models", "Color gamuts," and basically all of the "Color somethings" in CSS.

Color Everything in CSS originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

CSS has a number of functions that can be used to set, translate, and manipulate colors. Learn what they are and how they are used with a bunch of examples to get you started.

CSS Color Functions originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

How do you stay informed of new CSS features when the language evolves quickly and information is spread all around the web? Sacha Greif has some tips from his work running an annual survey focused on new CSS features.

How to Keep Up With New CSS Features originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

ResizeObserver, MutationObserver, and IntersectionObserver enhance performance over their predecessors. Zell discusses their API similarities, usage steps, refactoring strategies, and advantages with practical examples.

A Better API for the Resize Observer originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

We put it to the test and it turns out Sass can replace JavaScript, at least when it comes to low-level logic and puzzle behavior. With nothing but maps, mixins, functions, and a whole lot of math, we managed to bring our Tangram puzzle to life, no JavaScript required.

Breaking Boundaries: Building a Tangram Puzzle With (S)CSS originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

The HTML popover attribute transforms elements into top-layer elements that can be opened and closed with a button or JavaScript. Popovers can be dismissed a number of ways, but there is no option to auto-close them. Preethi has a technique you can use.

Creating an Auto-Closing Notification With an HTML Popover originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

This is the third article in a series about the CSS shape() function. We've covered drawing lines and arcs in previous articles and, this time, we look specifically at the curve command and how to use it for drawing complex shapes.

Better CSS Shapes Using shape() — Part 3: Curves originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.

The contrast-color() function doesn’t check color contrast, but rather it outright resolves to either black or white (whichever one contrasts the most with your chosen color). Safari Technology Preview recently implemented it and we explore its possible uses in this article.

Exploring the CSS contrast-color() Function… a Second Time originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.