CategoryTechniques

July 17, 2026 — The common rule of thumb is to never “block” the browser’s main thread when running JavaScript tasks. But is this a hard rule? Victor Ayomipo describes a use case he encountered involving a screenshot extension where he made an exception to the rule and decided that blocking the main thread was absolutely the right thing to do. Read more…

May 28, 2026 — Seventy percent of websites still fail basic WCAG contrast checks in 2025. After years of design system tooling, accessibility linters, and JavaScript libraries, nothing moved the needle. We didn’t need better libraries. We needed better CSS. contrast-color() is that better CSS. Read more…

May 21, 2026 — Meet sibling-index() and sibling-count(). Staggered cascade effect in one line of CSS without :nth-child() rules or JS workarounds. Works for 5 items or 5,000. Read more…

February 5, 2026 — Prescriptive class name conventions are no longer enough to keep CSS maintainable in a world of increasingly complex interfaces. Can the new @scope rule finally give developers the confidence to write CSS that can keep up with modern front ends? Read more…

January 27, 2026 — In CSS, we can create “stacking contexts” where elements are visually placed one on top of the next in a three-dimensional sense that creates the perception of depth. Stacking contexts are incredibly useful, but they’re also widely misunderstood and often mistakenly created, leading to a slew of layout issues that can be tricky to solve. Read more…

December 9, 2025 — CSS Wrapped 2025 is out! We’re entering a world where CSS can increasingly handle logic, state, and complex interactions once reserved for JavaScript. Here is an unpacking of the standout highlights and how they connect to the bigger evolution of modern CSS. Read more…

December 2, 2025 — CSS Masonry is almost here! Patrick Brosset takes a deep dive into what this long-awaited feature means for web developers and how you could make use of it in your own work. Read more…

November 21, 2025 — Animations can be one of the most joyful parts of building interfaces, but without structure, they can also become one of the biggest sources of frustration. By consolidating and standardizing keyframes, you take something that is usually messy and hard to manage and turn it into a clear, predictable system. Read more…

November 14, 2025 — Debugging controllers can be a real pain. Here’s a deep dive into how CSS helps clean it up and how to build a reusable visual debugger for your own projects. Read more…

November 13, 2025 — 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. Read more…