CSS Day

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On 16th of June, 2017, the fifth CSS Day took place in Amsterdam. On 15th of June we ran a Browser API Special.
Schedule · Speakers · Attendees · Sponsors

Day 1: Browser API Special

08:15Doors open
09:00Rachel NaborsAnimations
09:50Peter-Paul KochConstraint Validation
10:40<br>
11:10Philip WaltonPolyfills & Houdini
12:00Ruth JohnWeb Audio
12:50<br type="lunch">
13:50Ada Rose EdwardsWebVR
14:40Mike TaylorWeird APIs
15:30<br>
16:00Patrick KettnerProgressive Web Apps
16:50Chris WilsonPayments & Credentials
17:40Partydrinks & discussions

Day 2: CSS Day

08:30Doors open
09:00Bert Bos & Håkon Wium LieCSS Reset
09:50Rachel AndrewGrid Layout
10:40<br>
11:10Mark BoultonDesigning Grids
12:00Jen SimmonsWriting Modes
12:50<br type="lunch">
13:50Gregor AdamsVariables
14:40Tab AtkinsHoudini & the Future
15:30<br>
16:00Chris CoyierFour Properties
16:50Stephen HayCSS for Evil, not Good
17:40Partydrinks & discussions

Side Events

Lecture and masterclass by CSS pioneers Bert Bos and Håkon Wium Lie, June 15th

CSS pioneers Dr. Bert Bos, from the World Wide Web Consortium (W3C), who is based in France, and Dr. Håkon Wium Lie from YesLogic, will give a unique lecture and a masterclass at CWI on Thursday 15 June 2017. They will talk about 'A walk-through of CSS Grid' and 'CSS in print'. Everybody interested in the current state and future of the CSS web standard for web design and print is cordially invited. Please save the date! Abstracts can be found below.

The lecture and the masterclass will be given in English. Date: Thursday 15 June, 14.00-17.00h. Location: Centrum Wiskunde & Informatica (CWI) , Science Park 123, 1098 XG Amsterdam. Admission fee:100 euro. Admission for Members of W3C, ISOC.nl, students and press: 1 euro. As there is limited space available, please register soon.

role=drinks, June 17th

It’s an accessibility meetup! The event features lightning talks by accessibility specialist, time to talk to the speakers and fellow attendees, and more than enough time to grab a drink.

You'll have to register, but on the other hand it's free. So what's not to like?

Browser API Special, Thursday June 15th

Your MC: Mathias Bynens

Mathias is a Belgian web standards enthusiast. He likes HTML, CSS, JavaScript, Unicode, performance, and security.

Alice in Web Animations API Land

Animation is back in the web development tool chest! We know of declarative CSS Animations and Transitions and fully featured JavaScript animation libraries like GreenSock, but there's an upcoming third option: the Web Animation API! In this talk Rachel Nabors will take you on a magical journey with Alice from Wonderland to show you how this new API is used to run the CSS Animations in your browser and how you can use it to generate and manipulate animations in your project. Colorful, interactive, useful fun for all disciplines.

Slides Video

Rachel Nabors

Rachel is a Program Manager on the Edge Platform Team at Microsoft where she represents the web design and animation communities. At the W3C, she works to bring about the animation APIs tomorrow's web will be built on. Her goal: unite developers, designers, and Uxers--head, hand, and heart--to make the web a better place for everyone.

In the past she has worked on interactive projects with companies like Adobe, Sesame Street, and Mozilla. Today Rachel speaks, writes, experiments, curates the Web Animation Weekly newsletter, and cultivates the Animation at Work community. You can catch her as @rachelnabors on Twitter and at rachelnabors.com

Constraint Validation

Form validation is literally the oldest trick in the JavaScript book: it was just about the only thing you could use JavaScript for in Netscape 2. Nowadays the state of the art has advanced with the Constraint Validation API and the CSS :invalid pseudo-class. That sounds great ... until you actually try to use them.

In this presentation PPK will discuss how the API works, why it is not all that great, and draw some valuable lessons about how not to design APIs. He'll also tell you how to validate your forms properly.

Slides Video

Peter-Paul Koch

Peter-Paul Koch is a mobile platform strategist, browser researcher, and conference organiser in Amsterdam, the Netherlands. He specialises in the mobile web, and especially mobile browser research. On the Web he’s universally known as ppk. He won renown with his browser compatibility research, founded Fronteers, the Dutch association of front-end professionals, and consults with mobile and desktop browser vendors on their implementation of Web standards. His personal mobile phone collection consists of about 50 pieces. Occasionally one of them emits a soft, melancholy beep, but he has no idea which one and studiously ignores it.

Polyfills & Houdini

Slides Video

Philip Walton

Philip Walton is an engineer working on the web platform at Google. He writes and speaks about emerging web technologies and builds libraries and tools to help developers be successful on the web today.

The Web Audio API (with a little bit of MIDI)

Audio with web technologies; it doesn't always have to be annoying background music that starts playing when you open a new tab.

The Web Audio API is extremely powerful, we can create sounds, load them, analyse them, modify them in an insane amount of different ways. This is an in-depth talk into the different methods of the API and not just the details, but how best we could use them in our development work flow. What techniques really come in useful when loading and manipulating sounds? We'll outline just that so you can go away feeling more confident knowing you that yes you can use audio!

And if all that wasn't enough, there's just a sprinkling of MIDI to go on top.

Slides Video

Ruth John

Ruth is a web developer and creative technologist, who has enjoyed a career spanning over a decade working on websites, applications and most recently interactive art projects. She likes to educate people about new web technologies and inspire them to try them, coming up with exciting and engaging ways to use them, as well as interesting integrations into everyday development. As a Google Developer Expert she's almost always got a conference talk lined up or article ready to be published.

Her favourite things include hacking with hardware, evangelising about Web Audio and MIDI and taking her award nominated, hand coded, audio/visual software to the streets, (or more recently conference after parties).

WebVR

VR is here, there are VR web browsers and new APIs to enable VR across a wide range of devices. The WebVR APIs rely on WebGL to render an immersive environment. This interactive talk aims to introduce a way of writing and controlling WebGL scenes with just HTML, accessible to web developers of all skills; no knowledge of 3D rendering required!!

Slides Video

Ada Rose Edwards

Ada Rose is a Senior Engineer and Developer Advocate for the Samsung Internet web browser. Specialising in Virtual Reality and Progressive Web Apps.

Weird APIs

The DOM hasn't been known for its sense of design or ergonomics, since, well, ever. In this talk I've cover a handful of browser DOM APIs that can get pretty weird.

We'll learn about some of the warts of the web platform, why we're mostly stuck with them, and ideally how we can learn from their mistakes.

Come get weird with the Fullscreen API, DOM Events, Indexed DB, showModalDialog, CSSStyleDeclaration, Canvas, WebRTC APIs... and more!

Slides Video

Mike Taylor

Mike Taylor leads the Web Compatibility team at Mozilla, and works from home in Austin, TX. Previously he worked at Opera Software as a “Web Opener”, whatever that means. In a former life, he studied linguistics and still has hopes of learning English one day.

Progressive Web Apps

Progressive Web Apps are one of the hottest things to come to the web platform in years, but how much of it is just hot air? When can you actually start shipping these things? Decades ago! In a hands on presentation, I'll show how PWAs are truly meant to be progressive - building on an evolution of web technologies nearly as old as the web itself, and still let you ship one of the most performant and cutting edge web apps around.

Slides Video

Patrick Kettner

Patrick Kettner won an eighth grade talent show competition singing Gloria Gaynor’s 1978 disco hit “I Will Survive”, and things have been looking up ever since. He has traded in the golden microphone for a PM position on Microsoft Edge, as well as being the lead developer for Modernizr. He lives in Seattle with his wonderful partner Katrina, son Holden, and dog Baxter.

Web Payments and Credential Management

By now, you know that Progressive Web Apps is really just a name for reducing user friction. This session will work through the next two scenarios that are challenging on the web today: getting users to authenticate and keeping them logged in, and creating pain-free checkout experiences so users can easily give you money. In this session, we'll look at the Credential Management API and the Payment Request API as solutions to these problems.

Slides Video

Chris Wilson

Chris Wilson is Developer Advocate on the Web team at Google. He started helping build the web in 1993 when he co-authored the original Windows version of the NCSA Mosaic browser. He then spent fifteen years at Microsoft working on Internet Explorer, and then joined Google in 2010. He has a particular interest in enabling awesome user experiences and hacking on audio and MIDI in the web platform, and is a long-time participant in various web standards working groups. He chairs the Web Platform Incubation Group at the W3C, and also sits on the W3C Advisory Board.

CSS Day, Friday June 16th

Your MC: Vasilis van Gemert

Vasilis van Gemert is a lecturer at the Amsterdam University of Applied Sciences, where he teaches the next generation of digital product designers how to design things with the web as a material. Before he became a lecturer he worked as a principal front-end developer for large and small clients in The Netherlands. Today he only creates websites for himself. This not only means that he can use any new feature he wants, it also means he is able to investigate things that might not seem very interesting. Most of the time this turns out to be true.

CSS Reset

In this session the two inventors of CSS will talk about what they’d do differently if they could design CSS all over again. For instance, was the C-language syntax optimal, or should CSS1 have been even simpler to achieve quick and widespread interoperability?

No slides Video

Bert Bos

Bert Bos studied Mathematics and Computer Science at the University of Groningen, The Netherlands, where he also got his PhD, on a thesis about Graphical User Interfaces. Together with Håkon Wium Lie he invented CSS (Cascading Style Sheets) and, in 1995, he joined W3C to further develop and standardize CSS. He created the Internationalization activity of W3C and was also involved in developing Web technologies such as HTML, XML and MathML. Today he is still Activity Lead for both the Style and Math Activities in W3C, but also works on other topics, such as, most recently, Web Security. Bert is based at ERCIM, the European host of W3C, in Sophia-Antipolis in the south of France.

Håkon Wium Lie

Håkon Wium Lie proposed Cascading Style Sheets (CSS) while working with Tim Berners-Lee at CERN in 1994. Along with Bert Bos, he developed a set of ideas for web style sheets into a implementeable W3C Recommendation. As CTO of Opera Software he shepherded Opera's implementation, and he proposed the Acid2 test to ensure that all browsers complied. He is now the chairman of YesLogic, which makes the Prince CSS-to-PDF formatter. He holds a MS from the MIT Media Lab, and a PhD from the University of Oslo.

What I discovered about layout via CSS Grid

CSS Grid Layout finally lands in browsers in 2017, after over five years of specification and browser development. For some of us, we may quickly find 80% of our users have support for the spec. For others, we can take advantage of Grid in a progressively enhanced way - leaning on CSS Feature Queries to detect support. Grid enables a whole range of layout possibilities, both in terms of streamlining existing patterns and in creating new design possibilities for the web.

This is a talk about Grid Layout, and the previously impossible tasks that grid makes possible. However it is also a talk about what it is to do CSS layout in 2017. I’ll be sharing the things I’ve learned about layout, as I’ve learned about Grid. Passing on the key lessons that can help you really take advantage of what has shipped in browsers already, and the things that are to come.

Slides Video

Rachel Andrew

Rachel Andrew is a front and back-end web developer, author and speaker. Her books include the recent Get Ready for CSS Grid Layout and she is a regular contributor to a number of publications both on and offline. Rachel is co-founder of the CMS Perch, a Google Developer Expert and an Invited Expert to the CSS Working Group. She writes about business and technology on her own site at rachelandrew.co.uk.

Designing Grids

We’ve been using the same 12 column grids on the web now for over a decade. What started with a few blog posts by an influential couple of design bloggers in 2006 found its way into new (at the time) CSS frameworks and that was that. However, there is way more to designing grids than choosing how many columns you want. Lucky for us, with Grid Layout, we have a powerful tool to realise those grids.

This talk will delve into grid design theory and make it applicable for today’s web. We’ll tackle how you systematically make decisions about how to approach grid design and resulting layout. How you create connectedness between design elements and how a well-designed grid can help answer a plethora of design problems in your process. Mark will bridge the gap between grid design and layout theory and modern web design that you can put into practice tomorrow. Together we might just move the web on from 12 columns for the next decade.

Video

Mark Boulton

Mark is a typographic designer and a member of the International Society of Typographic Designers; author of Designing for the Web and Web Standards Creativity; co-creator of Gridset; and was a founding partner of indie publisher, Five Simple Steps.

Mark is the Design Director at Monotype following the acquisition of his small design studio, Mark Boulton Design. Previously, Mark Boulton Design worked with global media companies such as ESPN and Al Jazeera; small brands with big stories like Hiut Denim; technology organisations such as Drupal and Alfresco; and home to the greatest scientific experiment on earth, CERN.

Living in Wales with his wife and two small children, Mark likes nothing more than riding up hills on his bike, trying to cook Japanese food, and consistently moaning about the design of bathroom taps.

Writing Modes

The web was invented to display text in a left-to-right horizontal writing mode — the way English and other western European languages flow. But as Bruce Lawson says, WWW stands for the World Wide Web, not the Western Wealthy Web. It's more important now than ever to be inclusive and global in our thinking, and resist imperialistic and nationalistic impulses.

Of course, over time the web has evolved. Unicode and the bidirectional algorithm provide support for right-to-left languages. More recently, the CSS Writing Mode specification added support for scripts that are typeset vertically. This talk will go through the Writing Mode Specification, unpacking our landscape of CSS tools for typesetting a complex range of written language. You'll also learn tricks for using writing mode properties to typeset graphic design effects for horizontal languages.

Slides Video

Jen Simmons

Dubbed “the Terry Gross of the tech industry,” Jen Simmons is the host and executive producer of The Web Ahead. Her in-depth interviews explain emerging technology and predict the future of the web — and won the 2015 Net Award for Podcast of the Year.

Jen is a Designer and Developer Advocate at Mozilla, where she advocates for web standards and researches the coming revolution in graphic design on the web. She’s spoken at events including SXSW, An Event Apart, Fluent, Generate, Future of Web Design, and Respond. Her talk, Modern Layouts: Getting Out of Our Ruts, was awarded Best Conference Presentation at CSS Dev Conf 2014.

Jen launched her first client website in 1998 and spent years making sites for small mom & pop shops, arts organization, and creative individuals. Her more well-known clients include CERN, the W3C, Google, Drupal, Temple University, and the Annenberg Foundation. Jen earned a MFA in Film and Media Arts from Temple University. She lives in New York City.

Variables

The concept of CSS variables has been around for a while but just recently most modern browsers actually started to support them. I always knew that something amazing would happen and that this feature would allow things beyond our imagination.

While the use case for variables might be very obvious the features are often underestimated. Variables in CSS allow behavior that was preivously not possible. Looking at every detail and reading the specs carefully can deliver some interesting facts. I found awesome but also scary possibilities and created examples for any use case I could think of.

It turns out that CSS variables are a real "Game changer" with one mind blowing feature after the other.

You want to interact between CSS and JS, you're looking for a layout framework, or simply want to reduce your code base? CSS variables cover all these cases and a lot more.

Slides Video

Gregor Adams

If you have ever heard of Gregor Adams aka “pixelass” it was probably related to some impressive use of CSS. In the past years Gregor dedicated a lot of time to art, in form of fractals, illusions or animations. Being creative, as he says, is one of the reasons for his wide range of skills and source for his love for detail. A few years ago Gregor decided to try something new and quit his old job to work as a web developer. Self taught and mentored by the open source community he soon found his path and now spends a lot of time helping others or speaking about his works.

Houdini & the Future

Slides Video

Tab Atkins

I'm Tab Atkins Jr, and I wear many hats. I work for Google on the Chrome browser as a Web Standards Hacker. I'm also a member of the CSS Working Group, and am either a member or contributor to several other working groups in the W3C.

A Tale of Four Properties

There are some values in CSS that allow you to create shapes. For example, you can use the clip-path property and the circle() function to clip and element in a circle of your liking. A circle is a "basic shape" in CSS, just as it is in SVG, and you can use these basic shapes as values for a number of CSS properties. Basic shapes don't include "path" though, which is the ultimate vector defining syntax. In a strange twist, path() does exist in CSS, in places that don't support basic shapes!

In other words, it’s complicated. In this session Chris will show you how to carefully navigate this minefield.

Slides Video

Chris Coyier

Chris is a web designer and developer. He created CSS-Tricks, a website all about building websites. Going strong for nearly 10 years, it’s a community with a blog, forum, almanac, and video screencast.

He is also the co-founder of CodePen, a playground for front-end web development. CodePen is a code editor for HTML, CSS, and JavaScript right in the browser. It’s also a community. People share what they make, write and comment about code, collect favorites, follow each other, and more. It’s a social network for front end designers and developers.

Chris is the co-host of a podcast called ShopTalk, a show about (you guessed it), building websites. Modelled after CarTalk, the show features call-in questions and industry guests. It’s going on 230 episodes!

Chris has also spoken at events all over the world and authored two books: Pratical SVG and Digging Into WordPress. The web is Chris’ life and career focus. The web is an incredible, inspiring, and empowering place and helping people know it better is good for everyone.

CSS for Evil, not Good.

Fact one: The language we use for designing the Web is a constantly evolving, powerful tool.

Fact two: People who stand to gain something from you have a motive to deceive.

In this presentation, Stephen explores the dark—and sometimes scary—space where both meet.

Slides Video

Stephen Hay

Californian by birth and Dutchman by choice, Stephen is an art director, designer-who-codes, and writer. He designed and built his first website in 1995 while art directing for a design firm. He left print behind. The things that happened after that could turn a conference bio into a book—a thriller, even. Stephen is Head of UX at online auction platform Catawiki.

Stephen wrote the book Responsive Design Workflow, which is all about content first, progressive enhancement, low-fi wireframing, and browser-based prototyping.

Attendees

All attendees, 354 in total
Name Company Twitter Days From
Ada Rose Edwards Samsung @Lady_Ada_King Both UK
Aico Klein Ovink Luminis CSS NL
Aina Requena Lafuente Exozet Berlin @ainarela Both DE
Albert Lamme Clockwork CSS NL
Alec Gorge Stack Overflow @alecgorge Both US
Alex Robinson Solidgoldpig Both UK
Alex van Hoek Elements Interactive Both NL
Alice de Mauro TMG Both NL
Aljan Scholtens @aljanscholtens CSS NL
Allard Rothengatter Dolphiq @dolphiq Both NL
Amir Swaleh inSided @humpff1 Both NL
Andre Vink Nextail CSS NL
Andreas Isaak LOUIS INTERNET @andreasisaak CSS DE
Anna-Lena Schlenker Cybercon Both DE
Anneke Sinnema Anneke Sinnema @asinnema Both NL
Ant Orant IDAGIO Both DE
Anthony Cleaver MHR Both UK
Anton Lantz Trollweb Solutions @skepton Both SE
Anton Rademaker Netsupport Both NL
Arien de Groot SIMgroep @ariendegroot Both NL
Arjen Weeber theFactor.e Both NL
Arne Timmerman YourSurprise Both NL
Arno Manders theFactor.e Both NL
Arnoud Huberts Luminis CSS NL
Artur Kornakov aviasales.ru @fliptheweb Both TH
Aurelia Koinberg Trollweb Solutions Both SE
Bart Vandeputte Sioen Industries @bvdputte Both BE
Bart Veneman Drukwerkdeal Both NL
Bas Kok bakotaco @bakotaco Both NL
Bas van den Wijngaard RAAK | voor online beleving @piekhaar Both NL
Bastian Otto E.M.P. Merchandising Both DE
Ben Darlow Deliveroo @kapowaz Both UK
Benjamin Dudok BLIS.digital Both NL
Berend Pronk CMD Amsterdam API NL
Bernardo Baquero Stand TMG @berbaquero Both NL
Bert Bos W3C Both FR
Bert De Swaef Vulpo @burtds Both BE
Blazej Misiak ZPG @ZPGCareers Both UK
Bram Smulders Colours @bramsmulders Both NL
Bram Van Damme 3RDS @bramus Both BE
Bryan Scheele Hamaka @haamaakaa CSS NL
Camille Sébastien CMD Amsterdam API NL
Carlos Rodrigues Ev-box @vampaz Both NL
Chanel Mepschen CMD Amsterdam @chanelzippora API NL
Chris Asteriou Digital Bliss @digitalblissltd Both UK
Chris Coyier CodePen @chriscoyier Both US
Chris van der Leij Nextail CSS NL
Chris Wilson Google @cwilso Both US
Christer Janzon Funka Nu Both SE
Christiaan Laarman Coolblue Both NL
Christin Heinze Folkwang University of the Arts CSS DE
Christoffer Sørensen Trollweb Solutions Both NO
Chrit Kessels Fontys Hogescholen CSS NL
Coen de Zeeuw AlienTrick media creators CSS NL
Constantin Groß 48DESIGN @Connum Both DE
Cédric Lesne Cerebe @cerebe Both BE
Daan Schaeffer Both NL
Dan Elder Standard Life Both UK
Daniel Lewis Blue Apron @danrlewis Both US
Daniël Koster @Danichan_webdev CSS NL
Danny de Kruijk The Valley CSS NL
Danny de Vries CMD Amsterdam @dandevri API NL
Danny Evenwel Driebit CSS NL
Darice de Cuba @Darice CSS NL
Darius Kruythoff Hectius @dkruythoff API NL
Dave Bitter CMD Amsterdam @DVYBTTR API NL
Dave Smith Trinity College Dublin @davesmiths Both IE
David Mahl KPS digital CSS DE
Diana Mounter GitHub @broccolini Both US
Dijana Ceric CSS NL
Dirk Bazuin LimoenGroen CSS NL
Dirk Ginader Google @ginader Both US
Dominik Koscielak IDG @domkoscielak Both UK
Dominique van Gimst LimoenGroen CSS NL
Dorien Drees Driebit @doriend CSS NL
Ed Schenk Mediacollege Amsterdam Both NL
Eddie Bimmel YourSurprise Both NL
Edward Januszewski MHR Both UK
Edwin Metselaar Mobile Professionals @emetselaar API NL
Edwin Witlox Clockwork @edthenet CSS NL
Ekaterina Khurtina Yandex Both RU
Elaine Oliver Elsevier @skinkfu CSS NL
Elena Malta YOOX NET-A-PORTER GROUP Both IT
Elke Steegmans UCLL Both BE
Elwin Schmitz Coolblue API NL
Emil Björklund inUse Experience @thatemil Both SE
Emil Nordqvist Trollweb Solutions Both SE
Erik Gerrits Drukwerkdeal Both NL
Evan Stack Trinity College Dublin Both IE
Evert Slagter 1020concepts @evertslagter Both NL
Fabio Bier Albert Heijn Online @xblackbytesx Both NL
Federico Fabbri Benevolent AI Tech Both UK
Francine Navarro Shopify @francinedev Both CA
Frank Zijlstra Béyonit @fzijlstra Both NL
Freek Bron Internetbureau Elephant @FreekBron Both NL
Gaganpreet Arora NewsMedia @_gagan Both NL
Gary Hayes Visma CSS DK
Geert van Drunen BLIS.digital Both NL
Gerald van den Hengel JDriven @G_Hengel Both NL
Gerard Piek Bank Mendes Gans Both NL
Gerben Kuipers iWink CSS NL
Gijs Rogé Intracto Group @GijsRoge Both BE
Gregor Adams Both DE
Grygorii Polinovskyi Mobility Media @polinovskyi Both DE
Gunther Lehmann Blitzen Both DE
Haico Heemstra Albert Heijn Online @HaicoH Both NL
Hans Borst Both NL
Hans Grimm Grimm.nl @grimmweb CSS NL
Hans Verschooten Buzz @hansv Both BE
Harald Wastesson Trollweb Solutions Both SE
Harro Heijboer RAAK | voor online beleving Both NL
Heidi Olsen eROI @SwissWebMiss Both US
Herrmann Dettmann Exozet Berlin Both DE
Hidde de Vries hiddedevries.nl @hdv Both NL
Humberto Barrientos Gonzales CM Both NL
Håkon Wium Lie Opera @wiumlie Both NO
Ian Stewart CMD Amsterdam @ianstews Both NL
Ibe Garritsen a&m impact internetdiensten Both NL
Ieva Ozolite Visma Both LV
Ilya Daraselia Gen25 CSS NL
Ingrid Arcas Gemini Design Both NL
Ingrid van de Bovenkamp Mediacollege Amsterdam API NL
Ioannis Kapritsias CMD Amsterdam @ioannisDevelop API NL
Isabela Nastasa diconium digital solutions Both DE
István Szmozsánszky Skylark Software Consulting @slsoftworks API EE
Iwan Vlierman Drukwerkdeal Both NL
Jan Enning Kleinejan.org Both NL
Jan Lemmens AMPLEXOR Both BE
Jan Van Hee UCLL Both BE
Jannie Breij CSS NL
Jelle Sjollema Mediacollege Amsterdam Both NL
Jen Simmons Mozilla @jensimmons Both US
Jens Oomen DesignCloud CSS NL
Jeremy Keith Clearleft @adactio Both UK
Jeroen Bakker YourSurprise Both NL
Jeroen Bijl Clockwork CSS NL
Jeroen Landsman Colours Both NL
Jeroen Stengs PB Web Media @Bhalial Both NL
Jeroen Trotz Event Engineers @eventwifi Both NL
Jeroen van Woerkom 3w Media CSS NL
Jeroen Visschers Redhotminute Both NL
Jimmy van der Sleen AlienTrick media creators @sjimsters CSS NL
Job van Achterberg 3ode @detonite Both NL
Jochem Keller Internetbureau Elephant @jochemkeller Both NL
Joeri Claes Intracto Group @joericlaes Both BE
Joey Schmitz Mediacollege Amsterdam Both NL
Johan Huijkman Q42 @huijkman API NL
Johan Smits @mimsaxion Both NL
Johan Zandstra Dolphiq API NL
Johannes Großmann Cybercon Both DE
John Beitler Coffee Media @coffeemedia CSS NL
Jon Pearse @jonpearse Both UK
Jonas Linn medizinfuchs @jonaslinn Both DE
Joost Klein Schiphorst PB Web Media Both NL
Joost van der Borg SSR @joostvanderborg Both NL
Jordi Veenvliet Orange Juice Both NL
Jorgen Leijenaar Rabobank Both NL
Joris Hulsbosch Colours Both NL
Joris von Loghausen NewsMedia @vonloghausen Both NL
Joël Kuijten Xebia Nederland @pm5544 Both NL
Juan Rios NGTI @juanrios_nl Both NL
Julia Rietveld SSR Both NL
Kamila Zborowska-Tas TOPdesk API NL
Kevin Lorenz IDAGIO @verpixelt Both DE
Kevin Savonije YourSurprise Both NL
Kjell Bronkhorst The Valley API NL
Klaas Dieleman Valtech Both NL
Koen Peters ISAAC @koenpeters Both NL
Krijn Hoetmer Qontent @krijnhoetmer Both NL
Kris Klepers meinestadt.de Both DE
Kristiaan Thivessen Valtech Both NL
Kristian Svartstad Trollweb Solutions Both NO
Kristien Melaerts UCLL Both BE
Lars Jensen Trollweb Solutions Both DK
Laura Wilkinson ZPG @wilc0de Both UK
Lennart de Pender MaxServ CSS NL
Leon van Grient Driebit CSS NL
Leontien Kleibrink Mediacollege Amsterdam API NL
Leroy Doornebal Coolblue Both NL
Lewi Hussey Orange Juice @Lewitje Both NL
Linda Stuurman Luminis @rwlinda CSS NL
Lionell Wiesell NewsMedia Both NL
Lisette Hensen Mediacollege Amsterdam Both NL
Lotte Bijl Online Department @lottebijl89 Both NL
Luca Morandi Entopic Both NL
Lucien Immink ISAAC @lucienimmink Both NL
Lukas Feitsma Occhio Both NL
Luuk Hafkamp CMD Amsterdam @luukhafkamp API NL
Luuk Hartsema Devhouse Spindle @lkhrtsm CSS NL
Luuk Lamers DimCoppen @xaddict Both NL
Lydia van Deursen Luminis CSS NL
Mannus Menting DesignCloud CSS NL
Marc Derix DimCoppen @marcderix Both NL
Marcin Zalewski Unic @Wyrazisty Both PL
Marco Cardoso Both NL
Marco Leuwer Cybercon Both DE
Marianne Borowiak Rangle.io Both CA
Mariano Garcia Drukwerkdeal Both NL
Marije de Jong SIMgroep Both NL
Mark Boulton @markboulton Both UK
Mark Leenders Devhouse Spindle @mcleenders CSS NL
Markus Priewasser Netconomy Software & Consulting Both AT
Marlou Scholten AlienTrick media creators CSS NL
Mart Linger Indivirtual Both NL
Martijn Broere LimoenGroen CSS NL
Martijn Cuppens Intracto Group @Martijn_Cuppens Both BE
Martijn de Valk Valtech Both NL
Martijn van Duuren @Martijnvduuren Both NL
Martijn van Turnhout CM @MvanTurnhout Both NL
Martin Schimmel Drukwerkdeal API NL
Martin van Houte Aviva Solutions Both NL
Masataka Yakura PixelGrid @myakura Both JP
Mathias Bynens Google @mathias API BE
Matteo Ferretti Mozilla @zer0 Both NL
Matthew Grantski eROI Both US
Matthijs Adriaanse Burst Both NL
Maurice den Engelsman S5 MERKwaardige Specialisten @maurice_S5 Both NL
Maxim Tsoy Surfly @muodov Both NL
Menno van Os Studio van Os Both NL
Merlijn Vos CMD Amsterdam @Murderlon API NL
Michael Hastrich 72/300 @mchaste CSS NL
Michael Teeuw Xonay Media @michmich CSS NL
Michael van den Oudenalder Valtech Both NL
Michiel Bijl The Paciello Group @MichielBijl CSS NL
Michiel Koning Brainbrothers Both NL
Mike Taylor Mozilla @miketaylr Both US
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Mitch Rynart CM Both NL
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Nanno Jissink Béyonit Both NL
Neil Paterson Standard Life @fourrFour Both UK
Nick Koopmanschap CIG Both NL
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Niels Leenheer HTML5test @html5test Both NL
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Nynke Visser Both NL
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Patrick Kettner Microsoft @patrickkettner Both US
Paul Lloyd @paulrobertlloyd Both UK
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Pavlos Chrisochoidis Spil Games Both NL
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Rachel Andrew @rachelandrew Both UK
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Reina Zwarts Valtech Both NL
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Rijk van Zanten CMD Amsterdam @rijkvanzanten API NL
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Rowdy Rabouw double-R webdevelopment @rowdyrabouw Both NL
Roy Tomeij AppSignal @roy Both NL
Ruben Bos @rubenbos API NL
Ruben Janssen Iquality @RubenJ Both NL
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Said Zadou Connective Power @avokadro CSS NL
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Sander Langendoen Kleefaan @Kleefaan CSS NL
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Stijn De Prijck CM Both BE
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