Our speakers
Our line-up is now complete.
Day 1
Stephen Hay: MC

Stephen Hay is a creative director, designer, author, and speaker with a passion for code, design processes, and systems thinking. With a background in graphic design and fine art, he became an early advocate for responsive design, design systems, and using CSS as a design tool. He's the author of Responsive Design Workflow, co-author of Smashing Book #3, writer of countless articles on design topics, and has spoken at industry conferences worldwide. Stephen is always exploring smarter ways to work and create.
Level up your scroll UX
Slide by slide, CSS feature by feature, we'll incrementally enhance and craft a rad scroll experience. Normally a pain in the box; styling and managing scroll across touch, keyboard, mouse and more PLUS juggling each operating system's slightly different affordances, can be daunting. We’ll emerge victorious, nay, elegant! Learn terms like scroll hint, overscroll behavior, overscroll effect. Plus, when to use what, and a whole bunch of niche details about CSS and scrolling. It’s definitely something people do on your site right? Have you polished it or is yours a bit basic? Upgrade time.
Adam Argyle

Adam is a bright, passionate, punk engineer with an adoration for the web who prefers using his skills for best in class UI/UX and empowering those around him. He’s worked at small and large companies, and built an app for pretty much every screen (or voice). He is capable of over-engineering, but spends lots of brain power not to. Loves CSS, loves JS, loves great UX.
A Dao of CSS
What if we stopped trying to control the web—and started working with it?
In this talk, I return to A Dao of Web Design, an essay I wrote 25 years ago, to look again—this time through the lens of CSS. Drawing on a close reading of the Tao Te Ching, I explore how CSS isn’t broken or lacking—it’s just deeply misunderstood.
CSS is not a language of force. It doesn’t tell the browser what to do. It suggests, it yields, it adapts. It’s declarative, contextual, and quietly powerful—more in tune with Taoist ideas of the dao–flow, humility, and non-action (wei wu wei) than we may realise.
By understanding CSS through this lens, we see the cascade, inheritance, and layout not as problems to overcome, but as patterns to follow. We stop chasing pixel perfection and start designing systems that respond—gracefully, appropriately, and even beautifully—to the world around them.
This isn’t a talk about new techniques. It’s about letting go. And perhaps seeing CSS—and the web—with new eyes.
John Allsopp

John Allsopp has been working on the Web for nearly 30 years. He's been responsible for innovative developer tools such as Style Master and X-Ray, and his ideas formed the foundation for Typekit, now Adobe Fonts, and the entire concept of Responsive Web Design.
His writing includes several books, including Developing With Web Standards and countless articles and tutorials in print and online publications. He also organises Web Directions.
His "A Dao of Web Design", published in 2000, is cited by Ethan Marcotte as a key influence in the development of his acclaimed 2010 Responsive Web Design, which begins by quoting John in detail, and by Jeremy Keith as "a manifesto for anyone working on the Web".
Is Sass Dead Yet? CSS Mixins & Functions &c.
Sass has inspired new developments in CSS for over a decade – from variables to nesting, and now author-defined CSS mixins and functions. As these features make the jump from Sass to CSS, they tend to change in significant ways. So what can we do with CSS functions and mixins, how will they be different from the Sass tools that inspired them, how can you help in the spec process, and what other features might this open up in the future? Is this finally a death blow for CSS pre-processors? (No, but let’s talk about it anyway!)
Miriam Suzanne

Miriam is an author, artist, developer, and open web advocate. She’s a co-founder of OddBird, Invited Expert with the W3C CSS Working Group, and member of the Sass core team. Offline, Miriam spends her time repairing clocks, knitting socks, or creating hybrid performances with Teacup Gorilla & Grapefruit Lab.
CSS tried to come for my job — A practical guide to View Transitions for creative developers
CSS has gotten more powerful in terms of layout for the last couple of years, but lately, it’s also been creeping into places that have traditionally relied heavily on Javascript.
Features like scroll-driven animations and view transitions are changing what’s possible natively in the browser. As a creative developer, I’ve spent years building animated sites using GSAP, Swup, and Javascript-heavy custom setups.
In this talk, I’ll share what I learned switching from full-control Javascript animations to CSS-driven transitions. I’ll talk about what works, what doesn’t (yet), and how these tools are reshaping the creative developer’s workflow. If you’ve ever spent days tweaking timelines or writing math for transitions, this might just convince you to let CSS take over (at least a little).
Cyd Stumpel

Cyd is a freelance creative developer and part time teacher at the Amsterdam University of Applied Sciences. She creates accessible, award winning websites for everyone; from large organisations like WeTransfer and Amnesty International to creative agencies and freelancers. She’s got an eye for details and loves to turn flat designs into rich experiences.
Cyd has mostly focused on JavaScript animation over the last couple of years but has rediscovered her passion for CSS this year, rebuilding her portfolio with View Transitions and Scroll Driven Animation.
Select it! Styling new HTML UI capabilities
We are getting spoiled with increased UI capabilities, partially thanks to the efforts from the W3C community group Open UI. One of those features is the customizable select. This new capability for selects seems to love new CSS features, and that love is mutual.
This presentation is a love letter to W3C community groups, new UI capabilities, and CSS, showing you how to combine features such as anchoring, transitioning, scroll snapping, and much more to create fun, progressively enhanced, customized select elements.
Brecht De Ruyte

Brecht De Ruyte is a self-taught front-end developer located in Belgium with a passion for UX and Design. During the day you can find him working at iO, a full service agency. Besides that, he is also a Google Developer Expert, Smashing Magazine writer and blog owner of utilitybend.com. He also participates in the W3C communities: Open UI and CSS-next.
Rachel Andrew: Multicol and fragmentation

Rachel works for Google as content lead for Chrome Developer Relations, publishing to web.dev and developer.chrome.com. She is a front and back-end web developer, speaker, and author or co-author of 22 books including The New CSS Layout. Rachel is a Member of the CSS Working Group, and can be found posting photos of her cats on Mastodon and being all business on LinkedIn.
Brad & Ian Frost
In addition to speaking at the conference Brad and Ian will give an Advanced Design Tokens workshop on Wednesday 4th of June, the day before the conference.
Brad

Brad Frost is a design system consultant, web designer & developer, speaker, writer, teacher, musician, and artist located in beautiful Pittsburgh, PA. He helps people establish & evolve design systems, establish more collaborative workflows, and design & build software together. He is the author of the book Atomic Design, which introduces a methodology to create and maintain effective design systems. He co-hosted the Style Guides Podcast and has helped create several tools and resources for web designers, including Pattern Lab, Styleguides.io, This Is Responsive, Death to Bullshit, and more.
Ian

Ian Frost is a front-end architect, technical lead, and consultant passionate about helping developers level up their skills.
Over the last decade, Ian has developed many design systems in a variety of technologies, including Web Components, React, Angular, and Vue. Ian has partnered with tech leads, developers, and designers from numerous Fortune 500 organizations to successfully establish, implement, and maintain robust design systems and token architectures. He views this work as a blend of art and science and is eager to share hard-earned lessons to make the process easier for others.
Before becoming a web designer, Ian worked as a professional meteorologist. Outside of coding and forecasting, he enjoys playing music, participating in sports, and spending time with his wife and son.