Vadim Makeev

Now that most of the browsers are moving to a 2-week release cycle, expect: Firefox 200 in 2028 ✨ F

2026-07-09T16:10:31+00:00

Now that most of the browsers are moving to a 2-week release cycle, expect:

Firefox 200 in 2028 ✨
Firefox 300 in 2032 ✨

…and if I live long enough, I might see Firefox 1000 in 2059 😬

Firefox • Edge • Chrome

Why bother with time zones when you can just offload this problem on your user’s shoulders? Lazy Vat

2026-07-05T13:50:24+00:00

Why bother with time zones when you can just offload this problem on your user’s shoulders? Lazy Vattenfall bastards 🙄

(pressing “Continue” reloads the page)

Yes, that’s exactly what you need to do when a client-side exception has occurred: fill the page bla

2026-06-25T15:14:16+00:00

Yes, that’s exactly what you need to do when a client-side exception has occurred: fill the page black and guide users to the console. Well done 👏

Hello CSS Day, or more like CSS week? I’ve only arrived in Amsterdam, but I’ve already been amazed b

2026-06-10T16:16:51+00:00

Hello CSS Day, or more like CSS week? I’ve only arrived in Amsterdam, but I’ve already been amazed by what CSS can do. Just one example: resize the window on the desktop to save the octopus from drying out!

https://smulvin.github.io/Melvin-Web_CSS/

I can finally quickly test adaptive layouts in Firefox’s new Split View mode. For more advanced test

2026-03-25T11:05:00+00:00

I can finally quickly test adaptive layouts in Firefox’s new Split View mode. For more advanced testing, there’s Polypane, of course. But there are many other simpler side-by-side use cases. Yay!

https://blog.mozilla.org/en/firefox/split-view/
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For almost 10 years we've been publishing daily web platform news for the Russian-speaking comm

2026-02-11T12:53:00+00:00

For almost 10 years we've been publishing daily web platform news for the Russian-speaking community. I always wanted to do the same in English, and five months ago I finally started. Yesterday I published the 100th news on Web Standards. Here’s a little story behind the project. Of course, built with Eleventy 😎

https://pepelsbey.dev/articles/web-standards-news/

One second-hand Apple Magic Keyboard is dead. But another Touch ID box in a 3D-printed case is born!

2025-12-11T11:51:54+00:00

One second-hand Apple Magic Keyboard is dead. But another Touch ID box in a 3D-printed case is born! 🤓
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Finally published my Stylelint config as a separate npm package so I can conveniently reuse it betwe

2025-12-08T11:24:04+00:00

Finally published my Stylelint config as a separate npm package so I can conveniently reuse it between projects. Including a list of 499 properties sorted in a way that makes sense to me (never-ending work in progress). The update.js script will help me to keep it up to date using MDN’s BCD.

https://github.com/pepelsbey/stylelint-config-pepelsbey

Yay! Safari TP recently joined Firefox and Chrome in removing legacy styling for nested h1s. Though

2025-12-01T11:35:22+00:00

Yay! Safari TP recently joined Firefox and Chrome in removing legacy styling for nested h1s. Though I haven’t noticed it in the release notes 🤔

Demo, details on MDN.

Finally set up Firefox profiles to separate different sides of my everyday work. Custom icons make i

2025-11-14T06:13:54+00:00

Finally set up Firefox profiles to separate different sides of my everyday work. Custom icons make it much easier to navigate 😎

Arrived at TPAC in Kobe, Japan. Very confused by everything around (first time in Asia, come on) and

2025-11-09T06:24:29+00:00

Arrived at TPAC in Kobe, Japan. Very confused by everything around (first time in Asia, come on) and still jet-lagged, but started exploring the city.

I build websites!

2025-10-27T23:18:54+00:00

I build websites!

Arrived just in time for vacation 🤓 Face with Tears of Joy: A Natural History of Emoji

2025-08-23T06:49:49+00:00

Arrived just in time for vacation 🤓

Face with Tears of Joy: A Natural History of Emoji

Div is not a button, you say. How about li? Looks legit. <li _ngcrap routerlink=&

2025-07-31T11:38:50+00:00

Div is not a button, you say. How about li? Looks legit.


    
        
<li _ngcrap routerlink="/activities" tabindex="0">
  Activity stream
</li>{}

I guess I’m not a pro anymore 🥲 Jumped from 15” Pro M1 Max to just 13” M4 Air and can’t really tell

2025-06-19T19:32:44+00:00

I guess I’m not a pro anymore 🥲 Jumped from 15” Pro M1 Max to just 13” M4 Air and can’t really tell the difference, even for the podcast production workflow. Not sure if I’ve ever used the extra ports that much.

Most of the people: Huh? 🤔 Me: There’s no way you can use Shure SM7B on a stand like this because t

2025-06-19T08:25:29+00:00

Most of the people: Huh? 🤔

Me: There’s no way you can use Shure SM7B on a stand like this because the XLR port is blocked 🙄

(Étoile S01E02)

You don’t have to be a GeoGuessr expert to spot the city in the photo. Just walking here feels like

2025-06-05T21:20:12+00:00

You don’t have to be a GeoGuessr expert to spot the city in the photo. Just walking here feels like a crime 😬

This book didn’t age well 🥲 (Hail Mary Project by Andy Weir)

2025-05-10T20:15:44+00:00

This book didn’t age well 🥲

(Hail Mary Project by Andy Weir)

Planned a four-day CSS trip to Amsterdam in June: June 4, Pre-CSS Day meetup June 5–6, CSS Day conf

2025-04-09T11:22:30+00:00

Planned a four-day CSS trip to Amsterdam in June:

June 4, Pre-CSS Day meetup
June 5–6, CSS Day conference
June 7, CSS Café meetup

See you there 🤓

I just discovered that you can’t debug styles in a shadow root in WebKit Web Inspector if they’re at

2025-03-18T11:35:47+00:00

I just discovered that you can’t debug styles in a shadow root in WebKit Web Inspector if they’re attached using adoptedStyleSheets (constructable stylesheets). For some reason, they’re considered user agent stylesheets 🤔

https://bugs.webkit.org/show_bug.cgi?id=289948

Starting from Chrome 122 and today’s Firefox 134, you can use align-self and justify-self (or the pl

2025-01-08T18:39:04+00:00

Starting from Chrome 122 and today’s Firefox 134, you can use align-self and justify-self (or the place-self shortcut) to control boxes with position: absolute and inset: 0. Waiting for Safari to catch up!

https://codepen.io/pepelsbey/pen/xxvLBYZ

I have a suspicion that jzczhz and jzazbz color spaces were named by a cat walking on a keyboard 🥲

2024-12-18T16:56:11+00:00

I have a suspicion that jzczhz and jzazbz color spaces were named by a cat walking on a keyboard 🥲

https://mastodon.scot/@svgeesus/113673628536576666

Happy browser choice day to those in Europe who celebrate! This is a second attempt to get it right.

2024-12-12T22:00:55+00:00

Happy browser choice day to those in Europe who celebrate! This is a second attempt to get it right. Brought to you by the iOS 18.2 update and the fine folks from Open Web Advocacy

Gather around the fire, kids. Today, I will tell you an HTMHell story about native HTML color scheme

2024-12-09T11:13:20+00:00

Gather around the fire, kids. Today, I will tell you an HTMHell story about native HTML color scheme switching. It’s getting dark early in Berlin in the winter…

https://htmhell.dev/adventcalendar/2024/9/

With another wave of seasonal migration between social networks, let me remind you that I cross-post

2024-11-03T09:05:50+00:00

With another wave of seasonal migration between social networks, let me remind you that I cross-post pretty much everywhere I can to stay in touch with scattered friends. I’m mostly active on Mastodon, but feel free to pick the one that works for you: Mastodon, Bluesky, Threads, X, LinkedIn, Facebook.

Also, occasional photos and videos from gigs on Instagram.

Have you seen any good articles or projects using Cascade Layers for CSS architecture? Modern CSS se

2024-10-31T19:14:36+00:00

Have you seen any good articles or projects using Cascade Layers for CSS architecture? Modern CSS seems capable of something similar to BEM without complex tooling, but I’m struggling to make it work. You know, 15-year-old habits won’t let you go easy.

I’ll start:

A whole cascade of layers
Modern alternatives to BEM
Modern CSS for dynamic component-based architecture

Performance is a key aspect of the user experience 🥲

2024-10-31T10:01:34+00:00

Performance is a key aspect of the user experience 🥲

Any idea who’s right? It would be nice to be able to position a popover right next to the button tha

2024-10-28T12:47:26+00:00

Any idea who’s right? It would be nice to be able to position a popover right next to the button that triggers it. Firefox and Safari both make it easy. Chrome’s behavior makes me sad.

Yesterday, I gave a talk about MathML, and I heard that some people thought “ML” stood for “machine

2024-10-27T12:41:49+00:00

Yesterday, I gave a talk about MathML, and I heard that some people thought “ML” stood for “machine learning.” “Math Machine Learning” even makes some sense. To their disappointment, I was talking about markup language instead.

It got me thinking… With all the hype around AI, maybe next time I pitch an HTML talk, I should throw in “Hypertext Machine Learning” somewhere in the description, just to improve my odds 🤔

Last week, I successfully broke free from the vendor-locked and rather limited Apple smart home ecos

2024-10-16T11:32:20+00:00

Last week, I successfully broke free from the vendor-locked and rather limited Apple smart home ecosystem and jumped straight into the rabbit hole of Home Assistant, running on a VM inside of my NAS with Zigbee and Bluetooth dongles sticking out of it. If you know what the hell I’m talking about, give me a sad like and share some of your favorite Home Assistant tricks and resources 🤓

Remember* that annoying browser behavior when they copy text in uppercase, although it’s only styled

2024-10-10T00:28:32+00:00

Remember* that annoying browser behavior when they copy text in uppercase, although it’s only styled like that with text-transform? Yes, the one that goes against the spec. Apparently, Chrome 127 shipped the fix in July! Now, only Safari does that 🤨

It only took me half an hour to figure out how to find a specific branch base position here to download an old Chromium version from here and test it. Oh, and also xattr -cr /Applications/Chromium.app to be able to run it 🙄

* If you don’t, here’s an updated article

Starting from Firefox 131, released yesterday, text fragments are now cross-browser, aka Baseline (n

2024-10-02T09:43:05+00:00

Starting from Firefox 131, released yesterday, text fragments are now cross-browser, aka Baseline (newly available). You can also style the highlighted content with the ::target-text pseudo-element. I’m still getting over the #:~:text= thing, but it might be a good moment to start using it.

https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/131#:~:text=Text%20fragments%20are%20now%20supported

TIL there’s a .mml file extension for standalone MathML files (like there’s .svg for SVG, you know),

2024-10-01T16:08:12+00:00

TIL there’s a .mml file extension for standalone MathML files (like there’s .svg for SVG, you know), and only Firefox supports MML rendering! Chrome shows it as plain text. Safari doesn’t even bother with that. Naturally, I filed feature requests (Safari, Chrome), but I’m not holding my breath: it’s MathML, after all.

What does running a music commentary podcast feel like on different platforms? You know, fair use an

2024-09-06T22:57:26+00:00

What does running a music commentary podcast feel like on different platforms? You know, fair use and all that.

Apple Podcasts, Spotify, etc. just fine. Google Podcasts used to be like that, too. Now YouTube Music? They’ll just block the hell out of your feed.

Some pictures from Zurich and Pilatus mountain near Lucerne from last week’s trip to Switzerland.

2024-09-04T23:18:54+00:00

Some pictures from Zurich and Pilatus mountain near Lucerne from last week’s trip to Switzerland.