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CSS

CSS Day 2026

This edition has ended

CSS Day 2026 ran Jun 4–5, 2026 in Amsterdam, Netherlands. It is a CSS conference. ConferenceGrid lists 16 speakers, 4 sponsors and 16 sessions. The next edition, CSS Day 2027, is Jun 3–4, 2027 in Amsterdam.

Lineup updated Jun 16, 2026 · dates verified May 10, 2026

This annual CSS conference brings specifiers, implementors, teachers, and authors together to discuss the current state of CSS, upcoming features, and cool demos. The twelfth edition features fourteen speakers over two days.

Visit the official site
16Speakers
4Sponsors
16Sessions
4Companies · in total

Speakers

Programmed at CSS, in alphabetical order.

Adam Argyle
Ana Rodrigues
Bruce Lawson
Eric Meyer
Harry Roberts
Jake Archibald
Jelle Raaijmakers
Josh Tumath
Kevin Powell
Lea Verou
Lyra Rebane
Manuel Matuzović
Niels Leenheer
Patrick Brosset
Sara Joy
Una Kravets

Sponsors

The companies behind the program. Tiers as disclosed.

9elementsSelector
AG GridIdentifier
GoogleIdentifier
PolypaneSelector

Agenda

Selected from 16 sessions.

  • Day 1, 11th of June, 09:20

    Opening

    Welcome by our MC: Bruce Lawson

  • Day 1, 11th of June, 09:30

    What the color?!

  • Day 1, 11th of June, 10:55

    Let's fix the web's text size

  • Day 1, 11th of June, 11:50

    The value pipeline

  • Day 1, 11th of June, 13:55

    Putting the C in CSS Crimes

  • Day 1, 11th of June, 14:50

    Color-Scheming

  • Day 1, 11th of June, 16:15

    Containment

  • Day 1, 11th of June, 17:10

    Customisable <select> and the friends we made along the way

  • Day 2, 12th of June, 09:20

    Opening

    Welcome by our MC: Ana Rodrigues

Quick answers

When is CSS Day 2026?
CSS Day 2026 ran Jun 4–5, 2026 in Amsterdam, Netherlands. The next edition, CSS Day 2027, is Jun 3–4, 2027 in Amsterdam.
Where is CSS Day 2026 held?
CSS Day 2026 was held in Amsterdam, Netherlands.
Who is speaking at CSS Day 2026?
ConferenceGrid lists 16 speakers, including Adam Argyle, Ana Rodrigues and Bruce Lawson.
Who sponsors CSS Day 2026?
ConferenceGrid lists 4 sponsors: 9elements, AG Grid, Google and Polypane.
Company intelligence

An audience of 4 companies, parsed from the program.

Four companies in attendance.

The numbers below are derived from the speakers, sponsors, and exhibitors on this page, cross-referenced into one ledger. They are the only thing here that 10times.com cannot tell you.

Who's in the room
0All threespeak · spons · exh
4Sponsoringsponsor only
0Speakingspeaker only
Speakers by seniority
  • Other roles16100%

Of 16 speakers · classified by free-text title

Most-represented companies
#CompanyRolesSpeakers
19elementsSponsor · Selector-
2AG GridSponsor · Identifier-
3GoogleSponsor · Identifier-
4PolypaneSponsor · Selector-
Sponsors by tier
identifier2
50% of 4
selector2
50% of 4
Related events · by shared sponsors
ConferenceDateCityShared sponsors
CSS Day 2027June 3, 2027Amsterdam4
Conf42 FinOps 2027February 4, 2027Virtual2

In the same series

Prior and forthcoming editions