Web Standards

July 8
Introducing Baseline Alerts
Subscribe to notifications when web features change status across browsers.
July 7
Time-based background colour transitions with Temporal and CSS color-mix
Mapping the time of day to four colour stages that blend smoothly as hours pass.
July 6
The Goldilocks customizable select height
Sizing the picker with anchor positioning and calc-size() so it fits just right.
July 3
Introducing the Safari MCP server for web developers
Let AI agents see how your code actually renders in Safari, all running locally.
July 2
What’s new in Chrome 150
System accent colors, polygon rounding, animatable zoom, url() modifiers, and text-fit.
July 1
A11y.quest: 128 questions to level up your accessibility game
An interactive quiz to test and sharpen your web accessibility knowledge.
June 30
Modern CSS theming with light-dark(), contrast-color(), and style queries
Accessible, composable color themes that adapt elevation to light and dark modes.

July 1
A11y.quest: 128 questions to level up your accessibility game
An interactive quiz to test and sharpen your web accessibility knowledge.
June 18
Context-aware headings in HTML
How headingoffset shifts heading levels in the accessibility tree without changing tags.
June 5
The website specification
A platform-agnostic reference of features every quality website should have.
May 26
Declarative partial updates
New web platform APIs for inserting HTML out of order into specific document locations.
May 14
The HTML Sanitizer API
Browser-native XSS-safe HTML insertion without DOMPurify or other libraries.
April 30
The web is fun again: first experiments with HTML in <canvas>
An experimental Chrome API that draws real HTML into <canvas>, with pixel and shader effects.
April 27
The end of responsive images
How sizes="auto" with loading="lazy" lets browsers handle most responsive images.

July 7
Time-based background colour transitions with Temporal and CSS color-mix
Mapping the time of day to four colour stages that blend smoothly as hours pass.
July 6
The Goldilocks customizable select height
Sizing the picker with anchor positioning and calc-size() so it fits just right.
June 30
Modern CSS theming with light-dark(), contrast-color(), and style queries
Accessible, composable color themes that adapt elevation to light and dark modes.
June 29
Your grid lanes will likely fail WCAG 2.4.3
How balanced column heights break keyboard focus order, and how to fix it.
June 26
What’s missing from SVG
A synthesis of developer feedback maps the platform’s eleven biggest gaps.
June 25
Experimenting with random() in CSS
A new function brings randomized values to layout, animation, and visual effects.
June 24
Animating the dialog element using view transitions
Morph a button into a <dialog> by swapping view-transition-name inside startViewTransition().

June 22
Releasing Babel 8 today: ESM-only, drop ES5 default, and a smooth migration path
ESM-only, Node.js 22+, modern browser target, and assumptions over loose and spec.
June 15
CSS reacts, JS just listens
A tiny library that exposes runtime state to CSS through custom properties.
June 11
The quiet problem with unnecessary async
Marking sync code as async changes its contract and propagates Promises through callers.
May 28
CSS vs. JavaScript: exploring the performance implications of different animation strategies
How CSS, Web Animations API, GSAP, and Motion behave under main-thread congestion.
May 14
The HTML Sanitizer API
Browser-native XSS-safe HTML insertion without DOMPurify or other libraries.
May 13
Soon we can finally banish JavaScript to the ShadowRealm
A look at the TC39 ShadowRealm proposal for isolating JavaScript in clean execution contexts.
April 24
Your options for preloading images with JavaScript
Five approaches compared with their caching and CORS trade-offs.

July 1
A11y.quest: 128 questions to level up your accessibility game
An interactive quiz to test and sharpen your web accessibility knowledge.
June 30
Modern CSS theming with light-dark(), contrast-color(), and style queries
Accessible, composable color themes that adapt elevation to light and dark modes.
June 29
Your grid lanes will likely fail WCAG 2.4.3
How balanced column heights break keyboard focus order, and how to fix it.
June 23
Improving card patterns with anchor positioning
A pseudo-element covers the card surface but stops short of the secondary actions.
June 18
Context-aware headings in HTML
How headingoffset shifts heading levels in the accessibility tree without changing tags.
June 5
The website specification
A platform-agnostic reference of features every quality website should have.
May 25
600+ million people write right-to-left: two fixes your app needs
Use dir="auto" for RTL input and logical CSS properties for fully localized interfaces.

July 8
Introducing Baseline Alerts
Subscribe to notifications when web features change status across browsers.
July 3
Introducing the Safari MCP server for web developers
Let AI agents see how your code actually renders in Safari, all running locally.
July 2
What’s new in Chrome 150
System accent colors, polygon rounding, animatable zoom, url() modifiers, and text-fit.
June 17
Firefox 152 release notes for developers
field-sizing for form controls, Notification actions, and pointer lock unadjustedMovement.
June 12
Web technology sessions at WWDC26
Six WebKit sessions on Safari 27, grid lanes, customizable <select>, <model> element, and extensions.
June 9
News from WWDC26: WebKit in Safari 27 beta
58 new features, 525 fixes, customizable <select>, scroll anchoring, and WebAssembly JSPI.
June 4
What’s new in Chrome 149
CSS gap decorations, shape-outside functions, SVG path-length, crisp-edges, and back/forward cache for WebSocket.