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.
- Bruce Lawson
: MC
- Bramus Van Damme
: View Transitions
- Kevin Powell
: CSS is eating JavaScript
- Patrick Brosset
: Fun with grid lanes
- Sara Joy
: Color-Scheming
- Adam Argyle
: All the ways CSS adapts
- Ana Rodrigues
: MC
- Jelle Raaijmakers
: Value processing
- Lyra Rebane
: CSS crimes
- Niels Leenheer
: CSS Doom Laser
- Manuel Matuzović
: Breaking with habits
- Jake Archibald
: Selects
- Josh Tumath
: Accessible text size
- Lea Verou
: What the Color?!
- Una Kravets
: Modern UI Patterns
- Eric Meyer
: Offset paths and SVG