Web dev

• 1min read Browserbaseis now available on the Vercel Marketplace, allowing teams to run browser automation for AI agents without managing infrastructure. • This integration connec

• Here’s a really quick tip. • You can think of Tailwind utilities as components - because you can literally make a card ‘component’ out of Tailwind utilities. • @utility card { bo

• Designing A Streak System: The UX And Psychology Of Streaks I’m sure you’ve heard of streaks or used an app with one. • But ever wondered why streaks are so popular and powerful?

• 8 min read AI has changed the way that people find information. • For businesses, this means it’s critical to understand how LLMs search for and summarize their web content. • We

• 1 min read PostHog is now available in the Vercel Marketplace as a feature flags, experimentation and Analytics provider. • With this integration, you can now: Declare flags in c

• Confession time: I’ve read about the performance benefits of scroll-timeline() , but when I see an impressive JavaScript scrollytelling site like this one, it makes me question i

• Interop 2026 is formally a thing. • So, you know all of those wild, new CSS features we’re always poking at but always putting under a ’lack of browser support’ caveat? • The Big

• 4min read A six-week program offering over $6M in credits from Vercel,v0, AWS, and leading AI platforms Building an AI business is no small feat. • Delivering a great agentic pro

• 1 min read Anthropic’s latest flagship model, Claude Opus 4.6, is now available on AI Gateway. • Built to power agents that handle real-world work, Opus 4.6 excels across the ent

• 1 min read The Vercel Sandbox SDK now includes two new methods that make file retrieval simple. • When you run code in a Vercel Sandbox, that code can generate files like a CSV r

• 1 min read Sanity is now available on the Vercel Marketplace as a native CMS integration. • Teams can now install, configure, and manage Sanity directly from the Vercel dashboard

• 4min read Today, we’re expanding the Geist font family withGeist Pixel. • Geist Pixel is a bitmap-inspired typeface built on the same foundations as Geist Sans and Geist Mono, re

• 6min read Prototyping is democratized, but production deployment isn’t. • AI models have commoditized code and agent generation, making it possible for anyone to build sophistica

• 1min read When Vercel API credentials are accidentally committed to public GitHub repositories, gists and npm packages, Vercel now automatically revokes them to protect your acco

• This issue of What’s !important is dedicated to our friends in the UK (aka me), who are currently experiencing a very miserable 43-day rain streak. • Presenting: the five most in

Empathy-centered UX framework builds trust in mental health apps. Avoids harsh color schemes and shameful notifications. Places users’ emotional state at the forefront of design de

• In the previous article, we built the classic hexagon grid. • It was a responsive implementation without the use of media queries. • The challenge was to improve a five-year old

• Home Blog Interop 2026: Continuing to improve the web for developersStay organized with collectionsSave and categorize content based on your preferences. • Rachel AndrewGitHubLin

• You have an element with a configurable background color, and you’d like to calculate whether the foreground text should be light or dark. • Seems easy enough, especially knowing

• Designing For Agentic AI: Practical UX Patterns For Control, Consent, And Accountability In the first part of this series, we established the fundamental shift from generative to

• Speaking of charts… When was the last time you had to use a pie chart? • If you are one of those people who have to give presentations right and left, then congratulations! • Y

• New CSS features can sometimes make it easier and more efficient to code designs we already knew how to create. • This efficiency could stem from reduced code or hacks, or improv

• CSS @scope rule enables component-level scoping without heavy naming conventions. • Eliminates style leakage, reducing the need for overly specific selectors. • BEM and similar n

• Home Blog Start our latest course, Learn AI!Stay organized with collectionsSave and categorize content based on your preferences. • Alexandra KlepperGitHubBluesky Published: Febr

• Creating your theme is the fun part. • After you’re done, the next step is to publish your theme so you - and others - can enjoy your creation! • You’d think that publishing a VS

• 5 min read UI,Design,User Experience Share onTwitter,LinkedIn About The Author Vitaly Friedman loves beautiful content and doesn’t like to give in easily. • When he is not writin

• Years ago, when I read Sarah Drasner’s article on creating a VS Code theme, I silently thought to myself, That’s a lot of work… I’m never going to make a theme… But lo and be

• Short Month, Big Ideas (February 2026 Wallpapers Edition) Sometimes, the best inspiration lies right in front of us. • With that in mind, we embarked on our wallpapers adventure

• Neither Chrome, Safari, nor Firefox have shipped new features in the last couple of weeks, but fear not because leading this issue of What’s !important is some of the web develop

• Copilot, Cursor, Claude, ChatGPT integrated into daily web dev workflow. • Tools automate repetitive tasks, improving speed and consistency. • Responsible developers prioritize c

• Chrome 144 and Firefox 147 released, bringing new web platform features to stable browsers. • Firefox 147 adds CSS Anchor Positioning baseline, enabling element positioning relat

• Chrome 144 recently shipped ::search-text , which is now one of several highlight-related pseudo-elements. • This one selects find-in-page text, which is the text that gets highl

• We all have a few skeletons in our CSS closets. • There’s probably that one-off !important where you can now manage that more effectively with cascade layers. • Or maybe a dated

• CSS stacking contexts create an imaginary z-axis, controlling element depth perception. • Position, z-index, opacity, transform, and filter each can trigger a new stacking contex

• Modal using native showModal lets users tab out to address bar, challenging old focus‑trap rule. • WCAG spec never mandates trapping focus inside dialogs; guidance is outdated. •

• December 2025 saw a quiet Baseline release, with developers taking a holiday break. • New API: document.caretPositionFromPoint() simplifies caret location detection in the DOM. •

• Modern CSS lets you build responsive hexagon grids without JavaScript or media queries. • The new corner‑shape property replaces clip‑path, simplifying hexagon creation with aspe

• Firefox Nightly now supports @custom-media, enabling developers to alias complex media queries. • Open Props offers 45+ ready‑made @custom-media aliases for common design pattern

• Agentic AI enables systems to plan, execute, and persist tasks autonomously, surpassing simple recommendation engines. • Unlike RPA, Agentic AI creates dynamic plans based on goa

• A component passed automated tests but remained inaccessible to screen readers due to an unnecessary ARIA role. • Removing the ARIA role restored native keyboard behavior, provin

• Pixel-perfect design is a relic, misaligned with responsive, fluid web experiences. • AI-enhanced workflows now automate layout adjustments across devices, reducing manual pixel

• I love me some good web research reports. • I’m a sucker for them. • HTTP Archive’s Web Almanac is one report I look forward to every year, and I know I’m not alone there. • It’s

• Smashing Animations Part 8: Theming Animations Using CSS Relative Colour I’ve recently refreshed the animated graphics on my website with a new theme and a group of pioneering ch

• 9 min read Career,UX,Design,Inspiration Share onTwitter,LinkedIn About The Author Vitaly Friedman loves beautiful content and doesn’t like to give in easily. • When he is not wri

• 6 min read Workflow,Tools,AI Share onTwitter,LinkedIn About The Author Designer, dev, editor, writer, and nomad.More about Daniel ↬ Email Newsletter Weekly tips on front-end & UX

• Pivoting Your Career Without Starting From Scratch Has work felt ‘different’ to you? • You show up, do your work, fix what needs fixing, and get the job done, but the excitement

• Countdown To New Adventures (January 2026 Wallpapers Edition) A new year is the perfect opportunity to break free from routines, reset habits, and refine how you do things. • And

• How To Design For (And With) Deaf People When we think about people who are deaf, we often assume stereotypes, such as ‘disabled’ older adults with hearing aids. • However, this

• Giving Users A Voice Through Virtual Personas In my previous article, I explored how AI can help us create functional personas more efficiently. • We looked at building personas

• Smashing Animations Part 7: Recreating Toon Text With CSS And SVG After finishing a project that required me to learn everything I could about CSS and SVG animations, I started w

• Home Blog LCP and INP are now Baseline Newly availableStay organized with collectionsSave and categorize content based on your preferences. • Barry PollardXGitHubMastodonBlueskyH

• Home Blog New to the web platform in DecemberStay organized with collectionsSave and categorize content based on your preferences. • Discover some of the interesting features tha

• Home Blog Vote for the web features you want to seeStay organized with collectionsSave and categorize content based on your preferences. • Rick ViscomiGitHubBlueskyHomepagePublis

• Accessible UX Research, eBook Now Available For Download Please note that we are currently unable to ship printed books to the United States due to customs clearance issues. • We

• State, Logic, And Native Power: CSS Wrapped 2025 If I were to divide CSS evolutions into categories, we have moved far beyond the days when we simply asked for border-radius to f

• Home Blog November 2025 Baseline monthly digestStay organized with collectionsSave and categorize content based on your preferences. • Jeremy WagnerGitHubLinkedInHomepagePublishe

• Home Blog Announcing Baseline in actionStay organized with collectionsSave and categorize content based on your preferences. • Jeremy WagnerGitHubLinkedInHomepagePublished: Decem

• Home Blog New to the web platform in NovemberStay organized with collectionsSave and categorize content based on your preferences. • Discover some of the interesting features tha

• Home Blog WebGPU is now supported in major browsersStay organized with collectionsSave and categorize content based on your preferences. • François BeaufortGitHub Published: Nove

• Home Blog October 2025 Baseline monthly digestStay organized with collectionsSave and categorize content based on your preferences. • Jeremy WagnerGitHubLinkedInHomepagePublished