Introducing the Safari MCP server for web developers. Saron Yitbarek presents a Model Context Protocol server giving AI agents access to the DOM, network data, screenshots, and console in Safari through 16 local tools. #safari #ai webkit.org/blog/1813...

What’s new in Chrome 150. AccentColor system colors for installed apps, polygon() corner rounding, animatable zoom, url() modifiers, the new text-fit property, background-clip: border-area, and scroll methods that return promises. #chrome #browser developer.chrome.com...

A11y​.quest: 128 questions to level up your accessibility game. Dave Davies built an interactive quiz across topics like semantic HTML and ARIA, sorted by difficulty, with accuracy tracking, streaks, and shuffle. #a11y #html https://a11y.quest/

Modern CSS theming with light-dark(), contrast-color(), and style queries. @una.im layers light-dark(), @​property, contrast-color(), and @​container style() queries to build accessible, composable themes that adapt elevation per mode. #css #color una.im/modern-css-th...

Your grid lanes will likely fail WCAG 2.4.3. @matuzo.at shows how grid lanes reorder items to balance column heights, breaking the match between tab order and visual order. The flow-tolerance property helps, and reading-flow may fix it. #css #a11y www.matuzo.at/blog/2...

What’s missing from SVG. Patrick Brosset gathered developer feedback from bug trackers, Interop proposals, and surveys to map eleven gaps, from external styling and CSS integration to text wrapping, reuse, geometry APIs, and accessibility. #svg #css patrickbrosset.com/a...

Experimenting with random() in CSS. Kilian Valkhof, on the Polypane blog, explores CSS random() with demos for bokeh, falling petals, a photo stack, and an aurora. Works in Safari 26.2+ and Chromium 148+ behind a flag. #css #animation polypane.app/blog/ex...

Animating <dialog> with view transitions. Rik Schennink swaps view-transition-name from a <button> onto the <dialog> inside startViewTransition() to morph button into modal. Behind a prefers-reduced-motion check. #css #viewtransition pqina.nl/blog/animat...

Improving card patterns with anchor positioning. Emil Björklund covers a card with a link pseudo-element, then an anchor() inset stops it above the secondary actions, keeping dead space around the favorite button. #anchor #css thatemil.com/blog/cl...

Releasing Babel 8 today. The Babel team ships version 8 after eight years: now ESM-only needing Node.js 22+, no longer compiling to ES5 but targeting modern browsers via Browserslist, with loose and spec replaced by per-tradeoff assumptions. #js #tools babeljs.io/blog/2026...

The fundamentals and dev experience of CSS @​function. @janeori.propjockey.io covers custom CSS functions: typed arguments with defaults, private internals, return type validation, and DX gotchas like silent failures and missing spread syntax. #css #learn frontendmasters.com/...

Context-aware headings in HTML. @matuzo.at explores headingoffset, an HTML attribute that offsets descendant heading levels in the accessibility tree without changing the tags. Useful for web components. In Firefox Nightly. #html #a11y www.matuzo.at/blog/2...

Firefox 152 release notes for developers. The field-sizing CSS property, Notification actions in showNotification(), unadjustedMovement for requestPointerLock(), and experimental text module imports with { type: "text" }. #firefox #browser developer.mozilla.or...

Introducing the field guide to grid lanes. Jen Simmons announces a new learning resource for CSS grid lanes with a playground, reference, and six real-world demos. Best in Safari 26.4+. #css #layout webkit.org/blog/1809...

CSS reacts, JS just listens. @nerdy.dev’s prop-for-that library exposes runtime state to CSS through custom properties: pointer position, scroll velocity, battery, viewport, and 16+ more, no event handlers needed. #css #js prop-for-that.netlif...

Web technology sessions at WWDC26. Saron Yitbarek rounds up six WebKit talks: Safari 27 beta, CSS grid lanes, customizable <select>, the <model> element, immersive visionOS environments, and web extensions. #safari #browser webkit.org/blog/1797...

The quiet problem with unnecessary async. Matt Smith warns that async without real asynchronous work changes a function’s contract, propagates outward through callers, and hides where real I/O actually happens. #js #performance allthingssmitty.com/...

CSS animated SVG maps. Amber Weinberg shows how to stagger pin opacity, fade in the background, and draw lines with stroke-dasharray and stroke-dashoffset, all inside a prefers-reduced-motion media query. #css #svg amberweinberg.com/cs...

News from WWDC26: WebKit in Safari 27 beta. Jen Simmons introduces 58 new features and 525 fixes: customizable <select>, scroll anchoring, transform-aware anchor positioning, WebAssembly JSPI, and top-level await. #safari #browser webkit.org/blog/1796...

Introducing the CSS Property Type Validator Stylelint plugin. Schalk Neethling released the first beta that validates @​property registrations, custom property assignments, and var() usage in your linting workflow. #css #tools schalkneethling.com/...

The website specification. @joost.blog published a platform-agnostic reference of technical features a quality website should have, covering HTML, SEO, accessibility, security, performance, internationalization, and agent readiness. #html #a11y specification.website

What’s new in Chrome 149. CSS gap decorations for grid and flexbox, shape-outside with path() and shape(), SVG path-length as a CSS property, image-rendering: crisp-edges, and WebSocket connections that no longer block back/forward cache. #chrome #browser developer.chrome.com...

CSS is filling the gaps with rules. Brecht De Ruyte introduces column-rule, row-rule, rule-break, rule-inset, rule-overlap, and rule-visibility-items for styling gaps in grid and flex layouts. The rules are animatable too. #css #layout utilitybend.com/blog...

The state of CSS centering in 2026. @css-only.dev compares flexbox, grid, position: absolute, and text-align, explains text-box, anchor-center, and safe vs unsafe centering. #css #layout css-tricks.com/the-s...

Entry and exit transitions with modern CSS. matia 🇭🇷 shows how @​starting-style, transitions with allow-discrete, and the View Transition API together create smooth, interruptible animations for <dialog> and popovers. #css #animation joyofcode.xyz/entry-...

Replacements​.fyi. A tool from the e18e collective that helps you find more performant and safer replacements for outdated or unnecessary npm packages. Type a package name and get drop-in alternatives or short code snippets to use instead. #npm #tools replacements.fyi/

CSS vs. JavaScript animations. Josh W. Comeau shows CSS and the Motion library stay smooth when the main thread is busy, while JS and the GSAP library freeze. Use native CSS when you can, and reach for JS only for what CSS can’t do. #animation #performance www.joshwcomeau.com/...

Better fluid sizing with round(). Ahmad Shadeed shows how the CSS round() function complements clamp() by snapping fluid values to consistent intervals, avoiding awkward decimals like 19.7px in typography, spacing, and baseline grids. #css #typography ishadeed.com/article...

Declarative partial updates. Barry Pollard and Noam Rosenthal introduce processing instructions and new setHTML(), appendHTML(), streamHTML() methods for inserting HTML out of order into specific document locations. #html #api developer.chrome.com...

600+ million people write right-to-left: two fixes your app needs. Nina Torgunakova from Evil Martians shows how dir="auto" handles RTL input in English apps, while dir="rtl" plus logical CSS properties enable fully localized UIs. #css #a11y evilmartians.com/chr...

Look up web platform features from your terminal. Patrick Brosset’s wf command shows Baseline status, MDN docs, specs, browser bugs, survey results, and Chrome usage, with data from the W3C WebDX Community Group. #tools #baseline www.npmjs.com/packag...

State of CSS 2026. Devographics opened the annual CSS survey, this year focused on the features that matter most. It takes 15–20 minutes and helps map how developers actually use modern CSS. #css #survey survey.devographics....

Modern web guidance. A set of expert-vetted skills from the Chrome team that guide AI coding agents toward accessible, performant, and secure web practices, helping with modern features like <dialog>, popover, container queries, passkeys, CSP. #tools #ai developer.chrome.com...

Firefox 151 release notes for developers. New shadowrootslotassignment attribute for <template>, @container style() queries, position-anchor: normal, Document Picture-in-Picture API, desktop Web Serial, and keyboardLock in fullscreen. #firefox #browser developer.mozilla.or...

State of AI 2026 survey results. Sacha Greif’s annual survey of 7,258 developers shows AI-assisted coding has gone mainstream, with respondents generating 54% of their code with AI, up from 28% last year. #ai #survey 2026.stateofai.dev/e...

Browsers treat big sites differently. Den Odell shows how Safari and Firefox ship thousands of lines of site-specific fixes, while Chrome’s dominance forces minority browsers to compensate, echoing the IE era in reverse. #browser #interop denodell.com/blog/br...

The HTML Sanitizer API. Ahmad Alfy explains the new browser-native API for XSS-safe HTML. setHTML and parseHTML always strip dangerous content, while setHTMLUnsafe variants follow your allow-list or block-list configuration. #security #html alfy.blog/2026/05/07...

Soon we can finally banish JavaScript to the ShadowRealm. @wil.to walks through the TC39 proposal for isolated execution contexts with pristine globals, perfect for sandboxing third-party scripts. Still at Stage 2.7. #js #ecmascript css-tricks.com/soon-...

WebKit features for Safari 26.5. Jen Simmons introduces the :open pseudo-class, element-scoped random(), color-interpolation for SVG gradients, ToggleEvent.source for popovers, the new Origin API, and 63 bug fixes. #safari #browser webkit.org/blog/1793...

How to control infinite CSS animations. In part 1 of 2, @css-only.dev shows how to speed up, slow down, and reverse infinite CSS animations on demand using animation-composition, CSS variables, and abs() and sign() functions. #css #animation frontendmasters.com/...

From React to native web with nanotags: a migration that saved 100 KB. Pavel Grinchenko replaced React and Ark UI with native Web Components and a 2.5 KB wrapper, nanotags, cutting 100 KB of JavaScript. #webcomponents #react evilmartians.com/chr...

Using safe-area-inset to build mobile-safe layouts. The @polypane.app blog covers env(safe-area-inset-*), viewport-fit=cover, calc() for extra spacing, and safe-area-max-inset-* that stays stable when the address bar hides. #css #layout polypane.app/blog/us...

What’s new in Chrome 148. CSS name-only container queries, at-rule() in @​supports, lazy loading for video and audio, the Prompt API for on-device AI, Web Serial on Android, and Web Authentication Immediate UI. #chrome #browser developer.chrome.com...

Media queries range syntax. Ahmad Shadeed shows how min-width and max-width create overlap bugs at identical breakpoints. The fix: CSS range syntax with operators like <=, >=, and >, supported since March 2023. #css #layout ishadeed.com/article...

Design token naming conventions: a practical guide. Stuart Robson breaks down how to build token names that scale: three tiers (primitives, semantic, component), five naming conventions, and principles like consistency over perfection. #design #component www.alwaystwisted.co...

SVG from scratch. Carmen Ansio presents SVG not as a graphics format but as a DOM where every shape is an element, every attribute a style, that could be selected with CSS, animated with transitions, and targeted with JavaScript. #svg #animation www.carmenansio.com/...

The web is fun again: first experiments with HTML in <canvas>. Amit Sheen explores Chrome’s experimental Canvas Draw Element API that renders HTML into <canvas> while keeping semantics, with pixel effects, mouse interaction, and WebGL shaders. #html #api frontendmasters.com/...

Scroll-driven animations. Josh W. Comeau explains CSS animation-timeline, which maps keyframes over scroll distance instead of duration, with ranges, scroll progress timelines, and linked timelines. Around 85% browser support. #scroll #animation www.joshwcomeau.com/...

Automate the browser from the terminal with Chrome DevTools MCP CLI. Joan León tours a CLI that controls Chrome through shell commands, with a persistent daemon for navigation, screenshots, Lighthouse audits, and Core Web Vitals tracing. #devtools #tools joanleon.dev/en/chro...

The end of responsive images. @wil.to revisits a decade of sizes headaches and shows how sizes="auto" with loading="lazy" finally hands that work back to the browser. Supported in Firefox, Safari, and Chrome. #html #performance piccalil.li/blog/the...