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.
The 2026 videos (on Conffab), photos and group photos have been published.
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.
Our 2026 line-up
The twelfth edition ran on 11th and 12th of June 2026.
- Lea Verou
: What the Color?!
- Lyra Rebane
: CSS crimes
- Josh Tumath
: Accessible text size
- Adam Argyle
: All the ways CSS adapts
- Jake Archibald
: Selects
- Manuel Matuzović
: Breaking with habits
- Una Kravets
: Modern UI Patterns
- Kevin Powell
: CSS is eating JavaScript
- Ana Rodrigues
: MC
- Bramus Van Damme
: View Transitions
- Patrick Brosset
: Fun with grid lanes
- Bruce Lawson
: MC
- Niels Leenheer
: CSS Doom Laser
- Sara Joy
: Color-Scheming
- Eric Meyer
: Offset paths and SVG
- Jelle Raaijmakers
: Value processing