Web Standards

April 24
Your options for preloading images with JavaScript

Five approaches compared with their caching and CORS trade-offs.
April 23
Playwright accessibility testing: what axe and Lighthouse miss

Practical Playwright patterns for testing what automated scanners miss.
April 22
Highlights from Git 2.54

New git history reword and git history split commands for safer history editing.
April 21
Firefox 150 release notes for developers

New CSS features, media pseudo-classes, animation range, and ariaNotify().
April 20
Fully local code embeds

A web component for isolated code sandboxes without third-party embeds.
April 17
Introducing masonry-gridlanes-wc: a native-first masonry web component

A web component with native CSS masonry support and a JavaScript fallback.
April 16
State of AI 2026

A new survey on how developers use AI tools and coding assistants.

April 20
Fully local code embeds

A web component for isolated code sandboxes without third-party embeds.
April 7
Getting your article shared: tips from ten years of newsletter curation

Practical advice on OG tags, sharing images, titles, blurbs, and canonical URLs.
April 2
Squarespace and web standards: how we helped bring HTML video and audio lazy loading to today’s browsers

How Squarespace engineers contributed lazy loading for video and audio to the web platform.
March 31
Form-associated custom elements in practice

Retrofitting AgnosticUI with ElementInternals and form validation.
March 19
Abusing customizable selects

Three creative CSS demos with folders, cards, and emojis.
March 13
You don’t know HTML tables

Advanced deep-dive into table vocabulary, semantics, and the Table Object Model.
March 5
A new meta tag for respecting text scaling on mobile

How the proposed textscale meta tag honors OS text size settings on mobile.

April 15
Modern CSS feature support for shadow DOM

Tracking CSS feature parity across the shadow DOM boundary.
April 10
Inverted themes with light-dark()

Adaptive theme switching with CSS container style queries and a JS polyfill fallback.
April 6
What is CSS containment and how can I use it?

How contain values, shorthands, and content-visibility cut unnecessary browser work.
April 3
The great CSS expansion

CSS features that replace hundreds of kilobytes of JavaScript libraries.
March 30
CSS is DOOMed: rendering DOOM in 3D with CSS

Every wall, floor, and enemy is a <div> positioned in 3D space.
March 27
The Layout Maestro, a practical CSS course on building web layouts

Learn to think about layout decisions through visual lessons and demos.
March 26
Under the hood: a closer look at the CSS architecture behind the redesign

Cascade layers, design tokens, light-dark(), and container queries in action.

April 24
Your options for preloading images with JavaScript

Five approaches compared with their caching and CORS trade-offs.
April 20
Fully local code embeds

A web component for isolated code sandboxes without third-party embeds.
April 13
Progressive web components

An HTML-and-CSS-first library for building web components that hydrate with JS.
April 1
Native JSON modules are finally real

Import attributes syntax now works in browsers and runtimes without bundlers.
March 18
Temporal: the 9-year journey to fix time in JavaScript

From TC39 proposal to Stage 4, with a shared Rust implementation across engines.
February 27
Making WebAssembly a first-class language on the web

Component model could remove JS glue, simplify loading, and speed up web API access.
February 16
State of React 2025 results are live

React 19, CRA deprecation, CVEs and RSC debates, and AI tooling shaping the ecosystem.

April 23
Playwright accessibility testing: what axe and Lighthouse miss

Practical Playwright patterns for testing what automated scanners miss.
March 13
You don’t know HTML tables

Advanced deep-dive into table vocabulary, semantics, and the Table Object Model.
March 11
Everything you never wanted to know about visually-hidden

Two decades of CSS hacks for accessible hiding and why there is still no native solution.
March 5
A new meta tag for respecting text scaling on mobile

How the proposed textscale meta tag honors OS text size settings on mobile.
February 19
Accessible building blocks for web

Short videos on headings, images, links, buttons, and forms, with practical accessibility tips.
February 10
Reference Target: having your encapsulation and eating it too

New proposal lets shadow DOM internals be referenced via the host without breaking encapsulation.
January 30
Five accessibility checks to run on every component

Essential component tests for keyboard, tokens, names, zoom, and screen readers.

April 21
Firefox 150 release notes for developers

New CSS features, media pseudo-classes, animation range, and ariaNotify().
April 8
What’s new in Chrome 147

View transitions, contrast-color(), border-shape, Math.sumPrecise, and more.
March 25
WebKit features for Safari 26.4

Grid lanes, WebTransport, Keyboard Lock API, and 191 bug fixes.
March 24
Firefox 149 release notes for developers

Popover hint, CloseWatcher, shape-outside: xywh(), and more CSS and API updates.
March 12
What’s new in Chrome 146

Scroll-triggered animations, Sanitizer API, WebGPU compat mode, and more.
February 25
Firefox 148 release notes for developers

HTML sanitizer, Trusted Types, CSS shape(), and more.
February 17
What’s new in Chrome 145

New CSS typography properties, an Origin object, and shorter UA string by default.