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A focused, advanced CSS conference

5th and 6th June 2025

CSS Day, 5th and 6th of June 2025 in Amsterdam, is a focused, advanced CSS conference. Our attendees and speakers are a mix of CSS designers, developers, spec writers, and browser vendors, who take pride in what they know and do.

Featuring Chris Coyier, Rachel Andrew, Adam Argyle, Ahmad Shadeed, Miriam Suzanne and many others, covering everything you need to know about CSS in 2025.

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Catchup all the talks from CSS Day for just €99

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  • 12 months of Conffab Pro (€249): access the full on‑demand library
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Day 1

Thursday 5th June 2025

  1. Level up your scroll UXAdam Argyle CSS Working Group Member Google
  2. A Dao of CSSJohn Allsopp Founder Web Directions
  3. Is Sass Dead Yet? CSS Mixins & Functions &c.Miriam Suzanne Co-founder & CSS Working Group Expert OddBird
  4. +4 more in this session
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Day 2 part I

Friday 6th June 2025

  1. Scope in CSSChris Coyier Founder CSS-Tricks
  2. Smart layoutsAhmad Shadeed UI Designer
  3. Form Control StylingTim Nguyen WebKit engineer Apple
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Day 2 part II

Friday 6th June 2025

  1. Building a Computer with CSSAmit Sheen CSS Artist
  2. Refactoring CSSAna Rodrigues Front-end Architect
  3. display: green; applying the web sustainability guidelinesHidde de Vries Accessibility Specialist
  4. +1 more in this session
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