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









