When people think of artificial intelligence, they imagine complex models, data centers, and cloud servers. What most don’t realize is that the real engine behind this AI revolution started in a place few expected: inside the humble gaming PC. The ...  ( 7 min )

Picture this: you’re sitting in a café with your laptop open, phone on the table, smartwatch buzzing every few minutes, and Bluetooth earbuds playing music. From your perspective, life is peaceful. From your phone’s perspective, it’s juggling a ridic...  ( 14 min )

If your phone were a person, it would probably be that overachieving friend who cannot sit still. The kind who insists they are relaxing while secretly running errands, replying to messages, and checking the weather at the same time. Inside your Andr...  ( 15 min )

Large language models are powerful, but they can also be unpredictable. They might generate long explanations when you expect a short summary, skip fields in a JSON output, or change the format completely from one request to another. When you’re buil...  ( 7 min )

JSON, or JavaScript Object Notation, was popularized by Douglas Crockford in early 2000. Since then, there’s been no looking back. JSON has become the standardized data exchange format between client and server technologies. JSON was built for humans...  ( 8 min )

If you’ve ever opened the Android Bluetooth source code, you might know this feeling. You go in with the calm confidence of a developer who just wants to understand how things work. You open BluetoothAdapter.java and think, “Ah, this looks clean.” Th...  ( 31 min )

You may have built a Retrieval-Augmented Generation (RAG) pipeline to connect a vector store to a powerful LLM. And RAG pipelines are incredibly effective at grounding models in factual, up-to-date knowledge. But if you've worked with them long enoug...  ( 15 min )

Discrete mathematics plays a key role in machine learning and algorithms. You can use it to find the shortest path (graph theory), encrypt files, compress data, and to do many other things. We just posted a discreet mathematics course on the freeCode...  ( 4 min )

n8n is an open-source workflow automation platform that lets you connect different apps, APIs, and services to easily automate tasks without needing to implement extensive code. We just posted a course on the freeCodeCamp.org YouTube channel that is ...  ( 4 min )

Being able to use the range syntax with container style queries — which we can do starting with Chrome 142 — means that we can compare literal numeric values as well as numeric values tokenized by custom properties or the attr() function. The Range Syntax Has Come to Container Style Queries and if() originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.  ( 11 min )

There are many existing web features and technologies in the wild that you may never touch directly in your day-to-day work. Perhaps you’re fairly new to web development and are simply unaware of them because you’re steeped in the abstraction of a specific framework that doesn’t require you to know it deeply, or even at all. Bryan Rasmussen looks specifically at XPath and demonstrates how it can be used alongside CSS to query elements.  ( 22 min )

Integrating vector search into traditional data platforms is becoming a common task in the current AI-driven landscape. When Google announced general availability for vector search in BigQuery in early 2024, it joined a growing list of established da...  ( 14 min )

There are lots of tips for [improving your website performance](https://www.debugbear.com/blog/improve-website-performance?utm_campaign=sm-10). But even if you follow all of the advice, are you able to maintain an optimized site? And are you targeting the right pages? Matt Zeunert outlines an effective strategy for web performance optimization and explains the roles that different types of data play in it.  ( 13 min )

A few links about headings that I've had stored under my top hat. Headings: Semantics, Fluidity, and Styling — Oh My! originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.  ( 10 min )

SVG is one of those web technologies that’s both elegant and, at times, infuriating. In this article, pioneering author and web designer Andy Clarke explains his technique for animating SVG elements that are hidden in the Shadow DOM.  ( 16 min )

Why should you use a semantic instead of a generic ? Accessibility, right? By how exactly does it help accessibility? Explaining the Accessible Benefits of Using Semantic HTML Elements originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.  ( 8 min )

Let’s dive into the building blocks of UX strategy and see how it speaks the language of product and business strategy to create user value while achieving company goals. Part of the Measure UX & Design Impact (use the code 🎟 IMPACT to save 20% off today).  ( 13 min )

With component variants, design systems become more flexible, letting you reuse the same component while adapting its look or state with ease. In this article, Daniel Schwarz demonstrates how design tokens can be leveraged to manage components and their variations using Penpot, the open-source tool built for scalable, consistent design.  ( 15 min )

Last time, we discussed that, sadly, according to the State of CSS 2025 survey, trigonometric functions are deemed the “Most Hated” CSS feature. That shocked me. I may have even been a little offended, being a math nerd and … The “Most Hated” CSS Feature: tan() originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.  ( 12 min )

The new month is just around the corner, and that means: It’s time for some new desktop wallpapers! All of them are designed by the community for the community and can be downloaded for free. Enjoy!  ( 16 min )

On mobile, people can lose their sense of context and can’t easily tell where a section begins or ends. Good small-screen design can help orient them using a variety of techniques. Getting Creative With Small Screens originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.  ( 12 min )

Can we use the element as the foundation for a tabbed interface? Why yes, we can! Pure CSS Tabs With Details, Grid, and Subgrid originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.  ( 11 min )

Here is a lesson on Iterators. Iterables implement the iterable iteration interface, and iterators implement the iterator iteration interface. Sounds confusing? Mat breaks it all down in the article.  ( 15 min )

When we change an element’s intrinsic sizing, its children are affected, too. This is something we can use to our advantage. CSS Animations That Leverage the Parent-Child Relationship originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.  ( 8 min )

A thorough but approachable lesson on JavaScript expressions excerpted JavaScript For Everyone, a complete online course offered by our friends at Piccalilli. An Introduction to JavaScript Expressions originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.  ( 14 min )

Motion can be tricky: too much distracts, too little feels flat. Ambient animations sit in the middle. They’re subtle, slow-moving details that add atmosphere without stealing the show. In part two of his series, web design pioneer Andy Clarke shows how ambient animations can add personality to any website design.  ( 16 min )

Honeypots are fields that developers use to prevent spam submissions. They still work in 2025. But you got to set a couple of tricks in place so spambots can’t detect your honeypot field. Building a Honeypot Field That Works originally published on CSS-Tricks, which is part of the DigitalOcean family. You should get the newsletter.  ( 9 min )

A simple but powerful mental model for working with AI: treat it like an enthusiastic intern with no real-world experience. Paul Boag shares lessons learned from real client projects across user research, design, development, and content creation.  ( 19 min )

Research isn’t everything. Facts alone don’t win arguments, but powerful stories do. Here’s how to turn your research into narratives that inspire trust and influence decisions.  ( 13 min )