Reposted by Stefan MateiIDF Hannibal Brigade @hannibalbrigade.biz · 21hThree years ago today the IDF carried out the Hannibal Directive, mass murdering their own people to bolster their pretext for the genocide in Gazajpost.comIDF carried out Hannibal Directive, new 'Sword of Damocles' on October 7 | The Jerusalem PostThe Israeli Air Force was carrying out a new 'Sword of Damocles' operation as it was carrying out the 'Hannibal directive,' the IDF's probes found. 217872
Reposted by Stefan MateiLea Verou, PhD @lea.verou.me · 03/10/2026This is exciting. 😍 CSS Mixins and Functions are features that will transform how CSS is written and shared and this makes them usable, today! I'd use these via `@import url(…) supports(not at-rule(@function));` otherwise you get no benefit in browsers that support functions/mixins natively. 1315
Reposted by Stefan MateiBurton Smith @stuffbreaker.bsky.social · 02/10/2026Okay, here's some more fun with CSS-only custom elements - layout components! #html #css #webcomponents dev.to/stuffbreaker...dev.toCSS-Only Custom Elements for LayoutsBuild declarative layouts using CSS-only custom elements 0102
Reposted by Stefan MateiDaniel Schwarz @dxnny.fun · 23/09/2026keith.is/post/digital...keith.isDigitalOcean has $3 million for DHH and nothing for CSS-TricksA week and a bit on UpCloud, deleting my DigitalOcean account after more than 10 years, and what DigitalOcean is doing to CSS-Tricks, one of the best places on the whole internet. 032
Reposted by Stefan MateiNathan Knowler @knowler.dev · 23/09/2026Another idea that lets you use range syntax: ```css :root { --tablet: 37.5rem; --desktop: 64rem; --width: 100vw; /* probably need to register this or name the root container */ } @container style(--desktop > --width > --tablet) { p { color: DeepPink; } } ``` 082
Reposted by Stefan MateiBurton Smith @stuffbreaker.bsky.social · 21/09/2026Lately, I've been exploring CSS-only custom elements. They're pretty rad! #html #css #webcomponents dev.to/stuffbreaker...dev.toCSS-Only Custom ElementsBuild real, composable web components using markup and CSS, with no JavaScript 8529
Reposted by Stefan MateiPaweł Grzybek @pawelgrzybek.com · 17/09/2026This recent article by @bram.us announces a new web component, that is built on top of two superb exciting modern APIs. • CSS Custom Highlight API • OpaqueRange API These two will change the way we build for the web. This post is really worth reading. www.bram.us/2026/09/14/i... #web #cssbram.usIntroducing <rich-input>, a GitHub-like search/filter text input to embed on your siteWhile working on a side-project to better navigate and search through my record collection, I found myself in need of a rich search input: one that accepts free-form text alongside structured filters ... 0274
Reposted by Stefan MateiBrecht De Ruyte @utilitybend.com · 08/09/2026🚀 Container style queries are baseline; New attr() capabilities are nearly there. Neat apart, but together they change how we can wire up components. Practice will make perfect, and I still need to rewire my brain for this combo. So, time to start that rewire. utilitybend.com/blog/contain...utilitybend.comContainer style queries and advanced attr(): rethinking how to wire up my components in CSS | utilitybendWiring HTML attributes into CSS with advanced typed attr(), and letting container style queries pass that state down to child components. 23314
Reposted by Stefan MateiVale @vale.rocks · 09/09/2026Here is my fully documented HTML boilerplate. It is a lean, minimal and solid foundation I use across the sites I develop. Written mostly for me, because I'm sure to forget why I've done things the way I have, but I hope it is of use to you too. vale.rocks/posts/html-b... #HTML #WebDevvale.rocksMy HTML BoilerplateA document outlining and explaining my general structure for HTML pages to use. A slim general markup template that applies to almost all HTML documents on the web and forgoes anything unnecessary. It is a general framework to build upon for individual sites. 511015
Stefan Matei @stefanmatei.com · 09/09/2026This is my mental model for it: Only custom elements (with a “-“ in the name) can be undefined, regular HTML elements can be known or unknown but they’re always defined. 020
Reposted by Stefan MateiZach Leatherman @zachleat.com · 06/09/2026aarongustafson.github.io/table-sort… from @aaron-gustafson.com is a very good web component!aarongustafson.github.iotable-sortable 293
Reposted by Stefan MateiLea Verou, PhD @lea.verou.me · 04/09/2026Came across this fantastic post by Slava Shestopalov randomly while looking for something else medium.com/design-bridg... In the usability & web tech class we used to teach at MIT with @karger.bsky.social I’d give a lecture on graphic design that included this, but this is so much better presented.medium.comOptical effects in user interfacesHow to make optically balanced icons, correct shapes alignment, and perfect corner rounding 14612
Stefan Matei @stefanmatei.com · 04/09/2026I need this so much in all editors (particularly in browser based ones) 020
Reposted by Stefan MateiVale @vale.rocks · 02/09/2026Respected friends and acquaintances, initial-scale is dead! We are freed of its tyranny. You no longer need to include it in your HTML head. It is an obsolete part of your head's meta viewport declaration. The details: vale.rocks/micros/20260... #WebDev #HTMLvale.rocksYou Don't Need Initial-Scale In Your HTML - 2 Sept 2026 13:50 UTC 410620
Reposted by Stefan MateiCaræsten 🇵🇸 @cara.city · 30/08/2026I don't think it's fair to post the home address of the Flock CEO online. instead we should have a website that tracks the exact position of his car at all times. 122234450
Reposted by Stefan MateiSam Rose @samwho.dev · 28/08/2026TIL the <samp> element: developer.mozilla.org/en-US/docs/W...developer.mozilla.org<samp> HTML sample output element - HTML | MDNThe <samp> HTML element is used to enclose inline text which represents sample (or quoted) output from a computer program. Its contents are typically rendered using the browser's default monospaced fo... 2302
Reposted by Stefan MateiKevin Powell @kevinpowell.co · 21/08/2026One of my favorite new-ish (and decently well supported) CSS features is the linear() function, and because of that, one of my favorite sites is easingwizard.com 0254
Reposted by Stefan MateiManuel Matuzović @matuzo.at · 17/08/2026Here is the 2026 edition of the HTML boilerplate I use for websites I build! Let me know if there's anything else I should consider including! matuzo.at/blog/2026/ht...matuzo.atMy HTML boilerplate in 2026 - Manuel MatuzovicEvery element I use for the basic structure of a HTML document, with explanations why. 718035
Reposted by Stefan MateiFrontend Dogma @frontenddogma.com · 22/07/2026Kernel—Semantic HTML Components for React and Web Components, by @kejk@mastodon.design: www.kernelui.com/?ref=frontenddogma… #websites #libraries #componentskernelui.comKernel — Semantic HTML components for React and Web ComponentsA component library built on real semantic HTML — React and Web Components, one shared token layer. 001
Reposted by Stefan MateiFirefox for Web Developers @webdevs.firefox.com · 22/07/2026popover="hint" landed in Firefox 153. Here's how it differs from regular popovers: youtube.com/shorts/HWetx... (sorry for the YouTube link, it seems like video uploads are broken on bsky today)youtube.compopover="hint" - new in Firefox 153YouTube video by Firefox for Web Developers 27621
Reposted by Stefan MateiDavid Bisset @davidbisset.com · 20/07/2026Jelly UI is a dependency-free Web Components library for "soft, tactile product interfaces"... soft-body physics, with dark mode, right-to-left support and WCAG AA color tokens built in. #css #frontend #html #webdev jelly-ui.comjelly-ui.comJelly UI — Soft Web ComponentsJelly UI is a dependency-free Web Components library for tactile product interfaces: soft-body physics, real form controls, dark mode, RTL and WCAG AA accessibility. 093
Reposted by Stefan MateiDesigner Hasan @designer4hasand.bsky.social · 18/07/2026My friends, It's been 3 days without a single donation💔 Every £25 helps us put food on the table & cover the basic daily needs of my family. Your kindness is what keeps us going through the hardest days. If you're able to help or share,it would mean the world to us🧡 Help here: gofund.me/6c54d52fd 084117
Reposted by Stefan MateiFirefox for Web Developers @webdevs.firefox.com · 15/07/2026Ohhhh this has just been added to WebKit bugs.webkit.org/show_bug.cgi...bugs.webkit.org319178 – [css-text-decor-4] Add support for text-decoration-inset 1594
Reposted by Stefan MateiPiccalilli @piccalil.li · 15/07/2026This is fantastic. The writing is superb and the interactive demos really help nail, understanding the concepts. polypane.app/blog/using-s...polypane.appUsing safe-area-inset to build mobile-safe layouts | PolypaneModern phones are not simple rectangles. They have rounded corners, camera cutouts, dynamic islands, and home indicators that double as gesture areas. Browsers… 0186
Reposted by Stefan MateiNilesh Prajapati @nileshprajapati.com · 14/07/2026Setting type like a printed page by @carmenansio.bsky.social #csscarmenansio.comSetting type like a printed pageFluid scales, balanced headings, drop caps, optical sizing, hanging punctuation. The browser now ships most of a typesetter's toolkit in pure CSS, switched off by default until you ask for it. 051
Reposted by Stefan MateiFrontend Dogma @frontenddogma.com · 27/06/2026What Is Google’s Project Nimbus, and Why Are Students Protesting Against It?, by @thehindu.com: www.thehindu.com/sci-tech/technolog… #google #amazon #politics #ethicsthehindu.comWhat is Google’s Project Nimbus, and why are students protesting against it?Students protested against Google’s Project Nimbus, a tech contract between the search giant and the Israeli government that is linked with violence against Palestinian civilians. 021
Reposted by Stefan MateiBadEmpanada @badempanada.com · 18/06/2026Unlike most people I actually read your platform. You wanted a State Department dictatorship over Gaza. It was essentially the exact same as what Trump is doing. 4415
Reposted by Stefan MateiKevin Powell @kevinpowell.co · 18/06/2026Inspired by @meyerweb.com's talk at @cssday.nl I played with offset-path before, but somehow missed that we can use it with border-box and padding-box, making this so incredibly easy. I need to fix up the code a bit as it's kinda messy, but you can see it here: codepen.io/editor/kevin... 612813
Reposted by Stefan MateiFirefox for Web Developers @webdevs.firefox.com · 17/06/2026CSS field-sizing is newly baseline, meaning you can make various form fields size to their contents, without needing JavaScript. 714827
Reposted by Stefan MateiSchalk Neethling @schalkneethling.com · 15/06/2026headingoffset is Not the Document Outline Algorithm | Hi, just me heading off some bad advice I’m starting to see in developer venues. adrianroselli.com/2026/06/head...adrianroselli.comheadingoffset is Not the Document Outline AlgorithmHi, just me heading off some bad advice I’m starting to see in developer venues. Background The proposed Document Outline Algorithm, where headings would automatically reset themselves to the appropri... 011
Reposted by Stefan MateiFirefox for Web Developers @webdevs.firefox.com · 02/06/2026Ever struggled to get heading tags right in includes/components? headingoffset could be the answer… 1124661
Reposted by Stefan MateiJosh W. Comeau @joshwcomeau.com · 28/04/2026The design of this new API is so elegant. It repurposes keyframe animations so that our animation can run over a *scroll range* rather than running over a duration. 🔥 Here’s an interactive widget from the post, showing the core concept: 141
Reposted by Stefan MateiFirefox for Web Developers @webdevs.firefox.com · 20/05/2026CSS style() queries landed in Firefox 151 making them newly available across engines. Here's how they work: 215734
Reposted by Stefan MateiChris Coyier @chriscoyier.net · 19/05/2026"Like if shadcn and Open Props had a baby." open-props-ui.netlify.app/html/open-props-ui.netlify.appOpen Props UI 3336
Reposted by Stefan MateiPhasers On Fun @humanspareparts.bsky.social · 19/05/2026we sanctioned the Special Rapporteur because she advocates for Palestinians. now we sanction Sumud Flotilla organizers because they are trying to feed Palestinians. not to be dramatic but i think it’s important you never forget how both parties betrayed humanity www.aljazeera.com/news/2026/5/...aljazeera.comUS imposes sanctions on Gaza flotilla organisers amid Israeli crackdownRights advocate accuses Washington of using 'terrorism label' to shut down Palestine activism internationally. 041
Stefan Matei @stefanmatei.com · 18/05/2026the way his face changes colors as he powers through his speech 020
Reposted by Stefan MateiAhmad Shadeed @ishadeed.com · 17/05/2026✍️ New Article: Better fluid sizing with round() I wrote about how CSS round() enhances the values you get from clamp() in sizing, typography, and spacing. Why it matters, and how to use it. 🔗 ishadeed.com/article/css-round 712418
Stefan Matei @stefanmatei.com · 16/05/2026youtube.comThe Palestinian game fighting to exist | #ajshortsYouTube video by Al Jazeera English 021
Reposted by Stefan MateiJulia Evans @b0rk.jvns.ca · 15/05/2026moving away from tailwind, and learning to structure my CSS jvns.ca/blog/2026/05... 1624230
Reposted by Stefan MateiRandom MDN @random-mdn.bsky.social · 13/05/2026🦖 <code>any-pointer</code> CSS media featu… 🦖 developer.mozilla.org/en-US/docs/We… The any-pointer CSS media feature tests whether the user has any pointing device (such as a mouse), and if so, how accurate it is. #webdev #CSSdeveloper.mozilla.org<code>any-pointer</code> CSS media featu…The any-pointer CSS media feature tests whether the user has any pointing device (such as a mouse), and if so, how accurate it is. 021
Reposted by Stefan MateiMatt the Dad Dude @undefeatedmatt.wifeguy.online · 12/05/2026This story was fact checked true ✅ by actual fucking demons from hell 515019
Reposted by Stefan MateiCaræsten 🇵🇸 @cara.city · 12/05/2026I do think a lot of the pointed publicity on Microsoft's dealings in Israel came from BDS specifically, so this is legitimately a huge victory for the movement 102417757
Reposted by Stefan MateiChris Coyier @chriscoyier.net · 05/05/2026`zoom` in CSS was so known to be unreliable for so long I don't think I ever really learned what it was supposed to do. But I think that's all fixed now and @stefanjudis.com's demo makes it super clear. Scales stuff while keeping the element in flow. www.stefanjudis.com/today-i-lear... 37413
Reposted by Stefan MateiMDN Web Docs @developer.mozilla.org · 27/04/2026Parse and build query strings the easy way 🔗 URLSearchParams gives you a clean API for working with URL parameters. Get, set, append, delete, and iterate, no regex needed. Learn more 👇 developer.mozilla.org/en-US/docs/... 0253
Reposted by Stefan MateiCSS by T. Afif @css-only.dev · 24/04/2026💡 CSS Tip! You have the code of a CSS shape and you want its cutout version? Learn how to do it with a simple code. css-tip.com/invert-shape/ 0317
Reposted by Stefan MateiStefan Judis @stefanjudis.com · 24/04/2026Josh published a new post, and we all know what this means: lots of demos and eye candy. I'd forgotten about the ability to overwrite the SVG `d` attribute in CSS. Still on the fence about whether that's a good idea. 😅 www.joshwcomeau.... 0131
Stefan Matei @stefanmatei.com · 23/04/2026adrianroselli.comWhere to Put Focus When Opening a Modal DialogTL;DR: blanket statements about where to put focus when opening a modal dialog are wrong, including this one. This post is meant to help you, an intelligent and thoughtful and empathetic reader, figur... 000
Reposted by Stefan MateiStefan Judis @stefanjudis.com · 22/04/2026Do you know that you can use `image-set` to serve different background images right in CSS? Now you do and `image-set` is "widely available" since last month! 🎉 developer.mozill... 2438