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.

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.

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.

The goose and the common

The web is at an inflection point. Big Tech owns the major platforms, the major browsers, the biggest websites, and carves the Web up between themselves. Users are under constant surveillance in Big Tech’s walled gardens, which it then pollutes with its AI weed killer. What can we do to ensure that the web remains for everyone, as Sir Uncle Timbo intended?

Bruce Lawson

A veteran of the browser wars, many a standards skirmish and an accessibility apocalypse or two, Bruce now leverages synergies for Vivaldi browser.

When web standards finally makes him a billionaire, Bruce has no plans to go to Mars, but will continue making music with the cruellest months.

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.

Ahmad Shadeed

Ahmad Shadeed is a UX designer and front-end developer from Tulkarm, Palestine, who enjoys tackling interesting design and development challenges. He has written extensively about CSS, accessibility, and RTL (right-to-left) styling and is the author of a book on debugging CSS, helping developers improve their CSS debugging skills and reduce the time spent on fixing CSS issues.

Ahmad also coined the term Defensive CSS, a concept focused on writing future-proof styles. Through his work, he aims to bridge the gap between design and development, making it easier for designers and developers through practical articles and guides.

When he’s not at his computer, he enjoys dialing in a new espresso blend, trying to perfect a latte art design beyond the tulip, baking cookies, going out to nature and take photographs of his child.

Tim Nguyen: Form control styling

Tim is a WebKit engineer at Apple. His interest in web technology developed through years of web design and many contributions to Firefox’s user interface. Those contributions led him eventually to hack on browser engines, starting with adding support for conic gradients to Gecko. These days, he is a prolific WebKit contributor. Features he’s implemented include the <dialog> element, popover, and View Transitions.

He grew up in Paris and lives in San Francisco.

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.

Building a Computer with CSS

Ever wondered how a computer actually works? What a CPU is actually built of? And if it's possible to build one using only CSS? If so, this talk is for you.

We’ll break down the fundamentals of a CPU and rebuild them entirely in pure CSS. Using clever selectors and advanced styling tricks, we’ll construct working logic gates and even assemble them into a functional calculator. No JavaScript, no magic, just CSS pushing the boundaries of what’s possible.

Amit Sheen

Amit is an experienced web developer, specializing in CSS, design systems, animations, and creative coding. He has a pathological curiosity and a constant desire to learn new things, and loves sharing his experience and explorations with the community.

Bramus Van Damme

Bramus is a web developer from Belgium. He’s part of the Chrome Developer Relations team at Google, focusing on CSS, Web UI, and DevTools. From the moment he discovered view-source at the age of 14 (way back in 1997), he fell in love with the web and has been tinkering with it ever since.

Before joining Google, Bramus worked as a freelance developer in various frontend and backend roles. For seven years he also was a College Lecturer Web & Mobile, educating undergrad students all about HTML, CSS, and JavaScript — in that order.

Chris Coyier

I’m a web designer and developer that tries to help other people get better at those things.

I’m the co-founder of CodePen, a social development environment for web designers and developers. CodePen is a front-end focused IDE in the browser allowing people to write HTML, CSS, JavaScript, and related languages. It’s as much of a community and social network as a coding platform.

Along with Dave Rupert, I’m the co-host of a podcast called ShopTalk, a show about (you guessed it) building websites. We’re over 10 years and 500 episodes strong!

I built CSS-Tricks, a website all about building websites, and ran it for 15 years, from 2007 to 2022, before selling it to DigitalOcean.

I’m big on the power of writing as a way to improve yourself and be successful.

Ana Rodrigues

Ana works as a front-end developer at tech-for-good agency Hactar. She started coding as a teenager building fan sites, and has been working as a front-end developer for the last 12 years.

Nowadays, Ana spends most of her free time experimenting on her personal blog and is particularly interested in ethics, IndieWeb, sustainability, privacy, and all things CSS.

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.

display: green; applying the web sustainability guidelines

The tech sector has an elephant in the room: we use too much energy. In 2024, the World Bank estimated the internet to account for 1-4% of global greenhouse emissions, similar to aviation. The good news is: there are documented and measurable opportunities to improve. From code to infrastructure. In this talk, we’ll look at best practices from the W3C’s new Web Sustainability Guidelines and beyond, focusing on lessons you can apply today.

Hidde de Vries

Hidde is a freelance front-end, design systems and accessibility specialist (CPWA). He is also involved in the W3C’s Open UI Community Group and Accessibility Guidelines Working Group. His favourite programming language is CSS and he strongly believes in a web that puts people first. Hidde writes about these things and more on hidde.blog. In his free time, he works on a coffee table book covering the video conferencing applications of our decade.