JPEG XL vs AVIF for web use-cases

Posted 15 October 2026

JPEG XL has landed, but how does it compare?

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Controlling when CSS custom property values are computed

Posted 26 August 2026

The default might not be what you expect, and it has a big impact on your styles.

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Fixing my tooltip accessibility mistake

Posted 28 July 2026

aria-describedby isn't always enough.

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The Goldilocks customizable select height

Posted 29 June 2026

The 'ideal' sizing is more complicated than you think…

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Importing vs fetching JSON

Posted 22 October 2025

They behave differently, so make sure you pick the right one.

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The present and potential future of progressive image rendering

Posted 15 October 2025

Exploring progressive image rendering across JPEG, PNG, WebP, AVIF, and JPEG XL.

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Fetch streams are great, but not for measuring upload/download progress

Posted 15 September 2025

They're inaccurate, and there are better ways.

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Making XML human-readable without XSLT

Posted 02 September 2025

JavaScript is right there.

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Give footnotes the boot

Posted 01 July 2025

I hate footnotes, and hopefully by the end of this, you will too.

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Animating zooming using CSS: transform order is important… sometimes

Posted 17 June 2025

How to get the right transform animation.

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Jake Archibald with a black cat on his shoulders

Hello, I'm Jake and that's me there. The one that isn't a cat. I'm a developer of sorts, working on Firefox.

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Feel free to throw me an email, unless you're a recruiter, or someone trying to offer me 'sponsored content' for this site, in which case write your request on a piece of paper, and fling it out the window.

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