CSS Day is the annual CSS community conference that brings specifiers, implementors, teachers, and authors together to discuss the current state of CSS, upcoming features, and cool demos.
On 3rd and 4th of June 2027 we'll run our thirteenth edition. Do you want to talk about CSS in real life, and not just online? Make friends, not followers? Then come. You'll love it.
Want to buy 2027 tickets on the 2026 budget? Let us know.
Our 2026 line-up
The twelfth edition ran on 11th and 12th of June 2026.
The videos (on Conffab), photos and group photos have been published.
- Bruce Lawson
: MC
- Josh Tumath
: Accessible text size
- Lyra Rebane
: CSS crimes
- Niels Leenheer
: CSS Doom Laser
- Jake Archibald
: Selects
- Ana Rodrigues
: MC
- Eric Meyer
: Offset paths and SVG
- Patrick Brosset
: Fun with grid lanes
- Manuel Matuzović
: Breaking with habits
- Una Kravets
: Modern UI Patterns
- Adam Argyle
: All the ways CSS adapts
- Bramus Van Damme
: View Transitions
- Jelle Raaijmakers
: Value processing
- Kevin Powell
: CSS is eating JavaScript
- Sara Joy
: Color-Scheming
- Lea Verou
: What the Color?!