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Josh Tumath

@joshtumath.uk

1.1K followers 150 following 600 posts

Dev in the BBC Design System team. CSSWG member. Here for CSS nerdery, design systems and Intrinsic Web Design. Also Christian and 日本語学習者. he/him

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Josh Tumath @joshtumath.uk · Nov 3

Hello to recent new followers!

I guess I should give a brief introduction. I'm Josh and I've been working on the BBC's Design System team for over five years. My passion is CSS and I recently had the privilege of joining the CSSWG in the summer.

I hope to serve you all well. 🫡

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Josh Tumath @joshtumath.uk · 4d

And we're not getting any younger. 😭

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Josh Tumath @joshtumath.uk · 5d

The best bit was when they rotated the Enter key. 😂

Josh Tumath @joshtumath.uk · 13d

It means you're batman.

a cartoon of batman standing on top of a building with a lightning bolt behind him

Alt: a cartoon of batman standing on top of a building with a lightning bolt behind him

media.tenor.com

Josh Tumath @joshtumath.uk · 19d

Yes there was some weird reason that I can't remember about how British army bases need to be able to view the UK version of the website as well.

Reposted by Josh Tumath

Piccalilli @piccalil.li · 21d

A double focus ring is really useful in general but especially so with complex, themed systems. Eric Bailey shows us how to develop a really smart system, using modern CSS.

piccalil.li/blog/taking-...

Taking a shot at the double focus ring problem using modern CSS

A double focus ring is really useful in general but especially so with complex, themed systems. Eric Bailey shows us how to develop a really smart system, using modern CSS.

piccalil.li

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Josh Tumath @joshtumath.uk · 22d

No, they should only have my mum's cooking. You don't want to see the beige meal she cooked for me when I visited yesterday. 😂

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Josh Tumath @joshtumath.uk · 26d

Yesssssss!!! Very happy to hear that!

Reposted by Josh Tumath

Dave Letorey @letorey.co.uk · 27d

You should come to @londonwebstandards.org #sotb2026
Early bird tickets are £70
And if you can’t afford it apply for a diversity ticket

2026.stateofthebrowser.com

SotB14 | State of the Browser

Welcome to the fourteenth edition of State of the Browser, a yearly one-day, single-track conference with widely-varying talks about the modern web, accessibility, web standards, and more, organised b...

2026.stateofthebrowser.com

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Josh Tumath @joshtumath.uk · Sep 4

It's going to be a key a11y feature for every website, so I hope I can have more opportunities to talk about it once it lands in the css-fonts specification.

It's surprising how much our websites (including the BBC's) really struggle with supporting increased text size.

Josh Tumath @joshtumath.uk · Sep 4

I got to speak at our internal BBC conference, today, about what I've been involved with in the CSSWG: the new meta tag for websites to opt-in to respecting the text size accessibility settings in iOS and Android.

Photo of me presenting the talk on stage. In the foreground, there is a video camera recording me.

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Josh Tumath @joshtumath.uk · Aug 29

Yes I like that. @lukewarlow.dev has just suggested that on the issue.

However, you wouldn't be able to use the if() with prefers-color-scheme, because it doesn't use the *used* colour scheme. We'll need a new type of container query for that.

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Josh Tumath @joshtumath.uk · Aug 29

Ah yeah of course. It's cyclic. We can't do that, then.

Josh Tumath @joshtumath.uk · Aug 29

I'd love to hear your feedback! Should we be able to detect the used color scheme with a container query or a new pseudo-class?

@container color-scheme(dark) {
.header {
background-image: url("dark-bg.avif");
}
}

.header:color-scheme(dark) {
background-image: url("dark-bg.avif");
}

Josh Tumath @joshtumath.uk · Aug 29

I've created a proposal for a new CSS style query or pseudo-class that gets the current 'used color scheme'.

"But don't we already have @media (prefers-color-scheme)?"

Yes, but authors can override the color scheme and the media query can't know that.

github.com/w3c/csswg-dr...

[css-conditional][selectors] A way to set styles according to the used color scheme · Issue #12681 · w3c/csswg-drafts

Problem We can use @media (prefers-color-scheme) to set styles according to the user's preferred colour scheme. We can use the light-dark() colour function to set a colour value according to the us...

github.com

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Josh Tumath @joshtumath.uk · Aug 26

Thank you for writing this, our Dave! I hope the support you're getting will change things for you. Whether it's a long road or short, we'll always appreciate you and what you've done for us!

Reposted by Josh Tumath

Bramus @bram.us · Aug 21

🤩 View Transitions excitement!

Jake Archibald @jakearchibald.com · Aug 21

View Transitions are enabled by default in Firefox Nightly, so they're on their way to stable. Give it a test with your current transitions, and give me a shout if anything doesn't look right.

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Reposted by Josh Tumath

Una Kravets @una.im · Aug 14

Follow me on Youtube where I'm trying to post more consistently 🙂

www.youtube.com/@UnaKravets

Thank you ❤️

Una Kravets

Videos about CSS, UI development, productivity, life in the tech industry, building your career, front-end web development, and more.

www.youtube.com

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Josh Tumath @joshtumath.uk · Aug 12

And the new nighttime show in the Disneyland park can be viewed from all down main street so don't feel like you have to get the prime spot in front of the castle.

Josh Tumath @joshtumath.uk · Aug 12

Give yourself time to wander! Especially in adventureland.

Pirates of the Caribbean, phantom manor and it's a small world have very fast moving queues. Good to go on if the park is busy.

If you're there multiple nights, most rides are walk ons after 9 so good time for Big Thunder!

Josh Tumath @joshtumath.uk · Aug 10

It looks like a mini Crystal Maze.

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Josh Tumath @joshtumath.uk · Jul 31

Yesssss! Very pleased! And pleased to see Mozilla making some good hires recently for web standards!

Josh Tumath @joshtumath.uk · Jul 27

Oooh lovely! I'll be there from Monday!

Josh Tumath @joshtumath.uk · Jul 25

Graphics go downhill? That's a very hot take. 🔥

Josh Tumath @joshtumath.uk · Jul 25

Sonic 3 & Knuckles

Josh Tumath @joshtumath.uk · Jul 23

🤮