Mat “Wilto” Marquis

Interested in setting aside the magical prompter and learning some web standards skills the old fashioned way? You can sign up for my online Web Components course for free until Oct 31 with the code markitzero. If you find it useful, please consider letting folks know! 🎃

This has become this, through the power of polylactic acid.

CSS-Tricks has a new owner! Yes, I've got the keys to the castle, so to speak. And, even after 12 years of working on the site, I'll admit I'm a little overwhelmed and nervous about that. https://css-tricks.com/css-tricks-has-a-new-owner/

I'm so gosh-darned excited! css-tricks.com/css-tricks-h...

If you needed a win as badly as I have lately, mark this one down: CSS-Tricks is returning as an independent publication. Spread the word. wil.to/posts/taking...

Normal, that's the main thing. We can all agree that this has been a normal thing to spend my evenings making.

If they wanted to make Cyberpunk: Edgerunners S01 infinitely more relatable, all they had to do was have David occasionally mutter “things should quiet down a little next week, and then I can take a break” during the last few episodes.

Only two (2) copies of Multipage Version #2: IMAGES left — after this, I probably won’t do another run of ’em until issue #3. Act fast. Also, stickers! So far, I have “JavaScript [is] for Everyone,” “THE PEOPLE DESTROYING THE WEB HAVE NAMES AND ADDRESSES,” and the issue #2 sticker sheet up there.

The Venn diagram of “people that think one must ‘get on board with AI or get left behind’” and “credulous dorks that think a flying Tesla could ever happen” looking like the moon that they’ll definitely be able to stamp their little feet and demand their cars drop them off at someday.

I should’ve said, too: if you’ve already grabbed yourself a seat for vanilla JavaScript for Everyone — or you’re considering it — you’ll get the expanded New Game+ version as soon as it drops. Who doesn’t like free DLC? bsky.app/profile/wil....

Tomorrow, October 16th, marks Practical Accessibility's third birthday. 🎂 To celebrate, I am gifting everybody 25% off for the next 48 hours 🎁 Individual and team licenses alike! The discount is automatically applied during checkout—no code is needed. 👉🏻 practical-accessibility.today Enjoy! #a11y

We all needed a win. We’re getting one. bsky.app/profile/geof...

Want to hear some exciting news about JavaScript for Everyone: New Game+? Want to learn about putting the `setHTML()` method and Trusted Types API to use? Want to know why my “status” screen has a little skull-and-crossbones icon up next to my name? Well, do I ever have the newsletter for you!

It is not a common occasion at all that you get to be the first person on the web to properly document a HTML tag that shipped in a browser, but that is what I've done today. Have you ever heard about <HYPE>? I've explained it in this newly updated article: vale.rocks/posts/html-r...

in elementary school sometimes they used to tell u "make sure u do this on your own, dont have mommy write it for u". foolish. kids that used mommy freed up significant time for other goals! kids that dont use mommy will fall behind! give all your banking information & biometric data to mommy also

Introducing the Accessible Components Library! Common components with accessibility requirements, test scenarios, and automated tests. • Free to use and adapt • Human-readable tests in Gherkin • Mapped to WCAG 2.2, levels A to AAA Dig in! #Accessibility #OpenSource #WCAG #AccessibleComponents

Switched to drinking herbal tea most of the day to cut back on my nigh-inhuman caffiene intake, and the benefits have been really noticable: • Screaming forever-headache • Consistent execution of frame-perfect pre-00:00 microwave alarm cancels • Improved sleep only at times when sleep is undesirable

Attention class! @codepen.io School with @chriscoyier.net and @shaw.city is happening today at 11am PST. Don't be tardy! youtube.com/live/hduqhpj...

I get it, older leather is less likely to be a uniform 16-on-center, so anchors just takes some guesswork out of hanging.

Multipage Just noting Mat's Multipage Version zine rules. I bought both issues right away. It's weird, it's funny, it's a work of art, and you might even learn something. The page... https://chriscoyier.net/2026/10/09/multipage/

Happy 32nd Birthday The first proposal of Cascading HTML Style Sheets! On October 10, 1994, the Norwegian programmer Håkon Wium Lie published the first proposal of Cascading HTML style sheets.

I wonder why I made this. codepen.io/editor/Wilto...

There's so much one can do with just free will and a copy of GNU Image Manipulation Program. ko-fi.com/s/6607e50e5f

Updated this post to reflect the completely predictable result that ~30% of the 100 top English-language content websites are now using Google's Prompt API for browser fingerprinting, Google Advertising profiling, or both. The purpose of a system is what it does. eupolicy.social/@thatprivacy...

we need to be having conversations about Google's influence on web standards because it's increasingly apparent they are using their influence to cause harm as long a number goes up

Updated this post to reflect the completely predictable result that ~30% of the 100 top English-language content websites are now using Google's Prompt API for browser fingerprinting, Google Advertising profiling, or both. The purpose of a system is what it does. eupolicy.social/@thatprivacy...

After a decade at Cloudinary, I am looking work. I'm a web developer who's done a lot of devrel, too. I'm good at the front of the front end, great at browsers and standards and deeply understanding and explaining technical topics, and the stem of my T-shaped skills is: "images, on the internet".

Though a rudimentary format, all things considered, DVDs had some truly brilliant menus. My latest is about some great menus and a few technical details of DVD video interactivity. It even takes a bit of a look at some DVD games. Have a read: vale.rocks/posts/dvd-me... #DVD #PhysicalMedia

THE LEGEND OF ZELDA NINTENDO R&D4 1987 NES

“Lotta people only do it for the groupies, but for me [web standards] was about the _art_, y’know?” bsky.app/profile/stev...

Friday Podcast release 2 @wil.to and I duke it out Fireside #HTML #webDev #AI #WebStandards rss.com/podcasts/fir...

I almost didn't remark upon the fact that this shipped a couple weeks ago, on September 15th. sizes=auto is all green developer.mozilla.org/en-US/docs/W...

/ UR NOR'EASTER IS UPON U BOSTON / AS U SLIP DEEPER & DEEPER IN2 UR NOR'EASTER / DEEPER & DEEPER IN2 UR DEATH SPIRAL / DEEPER & DEEPER IN2 DEATH SPIRAL FASCISM / 1 THING IS 4 CERTAIN / WEATHER IS HAPPENING / & ITS HAPPENING THIS WEEKEND

It’s here! 👀 @wil.to multipa.ge

Necromancy is legal in Somerville, MA - but you have to get a license from the city. That's what I came here to say. G'night. 4/4

Alright, well, first of all, shut up,

Today is the LAST DAY for the end-of-summer discount on JavaScript for Everyone: use `PRICEFALL` at checkout and save 35%. Grab a copy now at the lower price and you get full access to the expanded “New Game+” version of the course when it drops: wil.to/js4e/newslet... Who doesn’t love free DLC?

There. Done. Made myself cry.

🚨 Our huge 35% discount on all courses ends tomorrow! 🚨 Use the coupon code PRICEFALL at checkout. Don't miss out! piccalil.li/courses/

why am I like this

You think I won’t do a tile countertop here in the Year of Luigi 2026? _Think again_.

Alright dorks, I’m finally going to the MIT Flea for the first time despite being raised down the street from it, and I’m gonna haul some issues of Multipa.ge along — flag me down if you want one, or just to talk me out of buying a Mac Classic or a ham radio or whatever. web.mit.edu/w1mx/www/swa...