CSS Day

Reminder: On 14th of May CSS Day ticket prices will go up by €75 + VAT. Want to come to cssday.nl ? Ordering now is cheaper than ordering later. See you in June,

Would you like to but CSS Day 2027 tickets ON THE 2026 BUDGET? That's possible; we're even working with a few companies to do that. Just let us know: cssday.nl/contact.html

📢 I need 160 more web developers to answer 1 important question. How do you interpret the "Fully Supported" label on MDN support tables? Let me know in the survey below and tell your web developer friends to answer too 🙏🏾 github.com/lolaslab/acd...

Check out whose sketches got added to @cssday.nl ! cssday.nl/2025/ cssday.nl/speakers.html See you in 2027!

The two Google #cssday presentations are on YouTube: youtu.be/QA5f2loqtM4 @una.im about modern UI patterns youtu.be/8FSLsVAJj2w @bram.us about view transitions. The other videos will be published on Conffab in the not too distant future. We'll tell you when they're available.

And the #cssday aftermovie is also online. www.youtube.com/watch?v=IarC... The full videos will follow on Conffab, but it'll take a little while longer.

The #cssday photos are online: cssday.nl/2026/pix/pho...

First Doom, now Quake. Next year we could fill a CSS gaming corner somewhere.

Did you attend #CSSDay and saw my talk (or heard about it), and you really want CSS Grid Lanes to be supported across browsers? ➡️ Give this issue a thumbs-up *and* add a comment explaining your use case. This can help a lot move things forward 💟 github.com/web-platform...

The slides for my talk "Breaking with habits" at @cssday.nl 2026 are online! noti.st/matuzo/XfWwB... Transcript: noti.st/matuzo/XfWwB...

At Schiphol, headed home from two excellent days at #cssday. I’m tired, my feet ache, and my throat is a little more scratchy than I’d like; but I’m leaving with a full heart and head full of odd ideas for things i want to try out. [1/2]

Will Lyra survive her encounter with the grid lanes of an original Dutch automatiek? Stay tuned...

I built an offline-first CSS grid lanes demo in my car after learning how to do it from @patrickbrosset.com yesterday at #cssday

The people of #cssday have spoken: we want gamut mapping and we want it NOW!

I find myself in a church. Why? Have I been put here for a reason? Is there a deeper purpose to my presence?

A #sketchnotes for the talk "What the color?!" by Lea Verou at the @cssday.nl #cssday

There is nothing to worry about. There will be relatively few flamethrowers at CSS Day and we are very protective of our target audience.

@cssday.nl speakers. As always, an amazing lineup. Looking forward to the talks. Sketchnotes at the ready. @bram.us @html5test.com @jakearchibald.com @joshtumath.uk @kevinpowell.co @lea.verou.me @matuzo.at @meyerweb.com @nerdy.dev @patrickbrosset.com @rebane2001.bsky.social @sjoy.lol @una.im

We still have a few tickets left. Maybe come off your fence and join us next week? cssday.nl/tickets.html

And they feel totally relaxed about the whole situation. That's so great.

And they have a solid grasp on the practicalities of the conference.

They will never be late in preparing the best talks for our audience.

We're fortunate to have such experienced, professional speakers.

🎨😵‍💫 Q: What do you find confusing or difficult about color in modern CSS? Working on my talk for @cssday.nl and if you send me your questions you may find some of them answered in it!

If you have a special diet, make sure we know about it this week. On Friday night we're going to send the special diet list to the caterer, and it will be locked down. Check your diet on your attendee page. Vegetarian options will be available throughout; it does not count as special. cssday.nl

The schedule for @cssday.nl is online! It's going to be fun! Who will I meet in Amsterdam? cssday.nl/schedule.html

Working on my talk for @cssday.nl and I just realized it's less than a month away. Not panic time yet, but it's coming fast 😅 Also, early bird pricing ends today, so if you don't have your ticket yet, now's the time! cssday.nl

Made progress with cssDOOM last evening. Created a special multi-player deathmatch version for CSS Day that runs in kiosk mode. It uses a video wall controller to split up the screen into sections. On the computer it is just one full screen window, but it drives two separate screens.

Oh look, the #cssday speakers are starting to cooperate to bring DOOM to our audience. front-end.social/@bramus/1165...

Reminder: TODAY is the last day you can buy tickets by invoice. From tomorrow on only Stripe payments are possible. cssday.nl/tickets.html

Reminder: In three weeks, #cssday ticket prices go up from €675 to €750. Also, buying tickets on invoice is only possible for another week; after that it's Stripe only. cssday.nl/tickets.html

... and we can announce our final three speakers: @meyerweb.com the father of CSS testing and documenting @jakearchibald.com  (Mozilla), returning to conferences near you @csswizardry.com, who's going to talk about his recent article about containment See you there! cssday.nl

Who else celebrates CSS Naked Day? cssday.nl

Conference organising in 2026 quirksmode.org/quirksblog/a...

I don’t have time to do as many conference talks these days but @cssday.nl always has a special place in my heart. It’s such a fantastic conference, both for the content and the community. If you can go, don’t miss it!

My career highlight was getting to talk at CSS Day a few years ago, so I'm so excited to be heading back this year, alongside so many other great speakers.

So happy to be back on the CSS Day stage this June with so many other fantastic speakers. And I can't wait to show what I've been working on the last year or two. Yes it will be about Doom, Lasers and CSS, and so much more. ✨ I do feel I've hit peak talk title with "CSS Doom Laser".

Also, we announce new speakers today. @kevinpowell.co Lea Verou, @matuzo.at and @html5test.com will join us on 11th and 12th of June. No flamethrowers will be used. Probably. cssday.nl

Writing a CSS Day newsletter about flamethrowers and doom lasers. We must address the legitimate concerns of our audience.

🎥 Out now: video of my @cssday.nl talk on making the web greener at work with the Web Sustainability Guidelines youtu.be/u76IcrzZPwc

The modern CSS stack demands constant care and attention social.lol/@hl/11615470...

At 100 attendees! And the best part of the conference is the people you meet, the community you're steeped in. (Or words to that effect.) cssday.nl/attendees.html

... and @ishadeed.com talks about smart layouts at #cssday. www.youtube.com/watch?v=_njU...