An affordable full-day conference for designers & front-end developers. Join us in the heart of Leeds for an all-star lineup featuring some of the industry’s finest minds.

30th April, 2018

Buy Tickets – SOLD OUT



Single-track, single-day front-end conference


09:00 – 17:00, Monday 30th April, 2018


Everyman Leeds,
Trinity Leeds,
Albion Street,


In association with Leeds International Festival  


Phil Hawksworth

Phil Hawksworth, Netlify (MC)

Phil works in Developer Relations at Netlify, the fastest growing automation and hosting platform for modern websites.

With a passion for browser technologies, and the empowering properties of the web, he loves seeking out ingenuity and simplicity, especially in places where over-engineering is common.


Rachel Andrew

Rachel Andrew, Perch

Rachel Andrew is a front and back-end web developer, author and speaker. Author or co-author of 22 books including The New CSS Layout and a regular contributor to a number of publications both on and offline.

Rachel is co-founder of the CMS Perch, Editor in Chief of Smashing Magazine, a Google Developer Expert and an Invited Expert to the CSS Working Group. She writes about business and technology on her own site at


Una Kravets

Una Kravets, Bustle

Una Kravets is an international speaker, technical writer, open source advocate, and Director of Product Design at Bustle. She’s written for various online publications such as A List Apart, 24 Ways, Smashing Magazine, and Sitepoint. Una also co-hosts the Toolsday podcast and started both the DC and Austin Sass Meetups. She's a performance nerd, loves the open source community and listens to way too many audio books.


Ian Feather

Ian Feather, BuzzFeed

Ian leads the front end infrastructure team at BuzzFeed working on performance, testing, automation and resilience. He is particularly fond of working on problems relating to scale: both of sites and of teams.

His background is in Front End Web Development and it’s only in recent years that he has stepped away from feature development to focus on Front End Infrastructure. He is a big fan of continuous delivery and creating a safe environment to push code quickly and easily. Prior to BuzzFeed he worked for Schibsted Media, Lonely Planet and Burberry.


Peter Gasston

Peter Gasston, rehabstudios

Peter is a veteran web developer who now works as a technologist at rehabstudio on projects for clients including Google and Facebook, and in partnership with some of the world’s biggest creative agencies. He’s the author of The Book of CSS3 and The Modern Web, and has written for Net Magazine, Smashing Magazine and A List Apart.


Ashley Baxter

Ashley Baxter, Jack

Ashley Baxter is currently building Jack, business insurance on a first name basis. She is also Director of Brokers Direct. Ashley likes video games, photography, and her dog, Indie. She is based in Glasgow, Scotland.


Jake Archibald

Jake Archibald, Google

Jake is developer advocate for Google Chrome. He’s one of the editors of the service worker spec, so he’s into offline-first, push messaging, and web performance.



09:00 – 09:30


09:30 – 09:45

Opening Remarks

09:45 – 10:30

Rachel Andrew – Unlocking the Power of CSS Grid Layout

Once you have grasped the basics of CSS Grid, you quickly discover how it enables many existing design patterns in a streamlined, elegant way. However, we shouldn’t see Grid in isolation. Understanding how other parts of CSS work together with Grid is key, in order to get the most out of our new abilities.

In this talk Rachel will be concentrating on a couple of these areas, CSS Box Alignment and CSS Sizing. Rachel will show you practical ways in which a little bit of knowledge in these areas can unlock the full potential of the Grid Specification. You’ll learn how to create useful components and to start thinking of ways in which you can solve design and interface problems in more creative ways.

10:30 – 11:15

Ian Feather – Building Resilient Frontend Systems

It’s time to accept that system and network failures are inevitable and to start designing our systems to withstand them. Accomplishing this isn’t easy but we’ve learnt a few tricks along the way which we would love to share!

I’ll explain the principles behind our approach as well as detailing some of the solutions we have put in place: covering areas of automation, instrumentation and continuous testing in production. Come and learn 19 ways BuzzFeed designs their frontend to be resilient to failure!

11:15 – 11:45

Break (30 minutes)

11:45 — 12:30

Peter Gasston – What is the Web without the Browser?

The smartphone platform has reached maturity, and everyone’s looking at what’s next. There are many options—from voice computers to face computers to ambient computers—and for each of them we must ask: what will the Web look like here? And, more interestingly, is there still a role for the browser?

12:30 — 13:15

Ashley Baxter – Idea to Execution, and Beyond

A high-level run-through of what it takes to execute and launch a project. Ashley covers the idea stage, build process, launch, and what to expect post-launch. Idea validation, shipping anxiety, and customer development are just a few of the themes covered.

13:15 – 14:30

Lunch (1 hour 15 minutes)

14:30 – 15:15

Lightning Talks

A series of lightning talks covering a variety of topics.

15:15 – 16:00

Una Kravets – CSS — Past, Present, and Future

CSS has gone through so many changes in the past few months, let alone years! In her talk, Una will go through some hacks of CSS past, tricks of CSS present, and exciting opportunities for CSS of the future. She’ll cover things like CSS grid, custom properties, rhythmic sizing, filter effects, and more. Be prepared for an exciting talk about what CSS has to offer yesterday, today, and tomorrow.

16:00 – 16:45

Jake Archibald – In the Loop

Have you ever had a bug where things were happening in the wrong order, or particular style changes were being ignored? Ever fixed that bug by wrapping a section of code in a setTimeout? Ever found that fix to be unreliable, and played around with the timeout number until it kinda almost always worked?

This talk looks at the browser’s event loop, the thing that orchestrates the main thread of the browser, which includes JavaScript, events, and rendering. We’ll look at the difference between tasks, microtasks, requestAnimationFrame, and where events land.

Hopefully you’ll never have to use setTimeout hacks again!


Closing Remarks


After party at Headrow House

We’re social!

After party

We will be holding an official after party on the top floor of Headrow House following the conference from 5pm. To gain entry simply show your lanyard at the door (first drink is free!). Our DJ’s will be playing an eclectic mix well into the evening.


We’ve put together a handy map of places of interest in Leeds. This contains some of our favourite places as well as important locations and transportation.

Friends of Hey!

We’ve partnered with some of Leeds’ finest independent bars, restaurants, and coffee shops. Visit any of our friends listed here (presenting your All Day Hey! lanyard) and you’ll receive a discount off every purchase.

  • Headrow House
  • Belgrave Music Hall & Canteen
  • Waterlane Boathouse

The following are exempt from the Friends of Hey! discount scheme, but we would still highly recommend you pay them a visit:

  • North Star Coffee Shop
  • Laynes
  • Kapow
  • Mrs Athas
  • La Bottega Milanese
  • Caravanserai
  • Whitelocks
  • Manjits Kitchen
  • Bluebird Bakery
  • Friends of Ham
  • Ox Club



Depending on where you’re travelling from, the quickest way to get to the venue is a train into Leeds city centre. From there it’s just a 5 minute walk to Trinity Leeds, where you’ll find the Everyman cinema on the second floor up the escalators.


The nearest bus stops to the venue are on Boar Lane. There are frequent buses to the following stops:


A taxi from a Leeds suburb will cost you anything from £6 – £20. White taxis will cost slightly more. Amber Cars are a well known and respected Leeds taxi company, however you will need to pre-book.


Whilst it might be more convenient to drive to the venue, the cost of all day parking may outweigh that convenience. The nearest car parks can be found on Swinegate and Butts Ct. CitiPark Leeds Dock is further away but may be cheaper than the more central options.


If you’re looking to stay the evening of the conference, we’d recommend the following nearby places:

Code of Conduct

All Day Hey! is a gathering of individuals who share a focus on front-end development and the various fields with which it intersects. All Day Hey! is an inclusive, cooperative environment where all practitioners and interested non-practitioners are welcomed, open dialogue is encouraged, and all perspectives are appreciated.

We expect cooperation from all participants to ensure a safe environment for everybody. Our conference is dedicated to providing a harassment-free conference experience for everyone, regardless of gender, gender identity and expression, age, sexual orientation, disability, physical appearance, body size, race, ethnicity, religion.

We do not tolerate harassment of conference participants in any form in any conference venue, including talks, workshops, social events, or other channels of communication.

A conference participant who violates these rules will be asked to stop. Should the participant not comply, the participant may be expelled from the conference without a refund. The conference organizers reserve the right to expel anyone who violates these rules.

If you need help at any point during the conference, please reach out directly and immediately to the conference co-chairs Josh Nesbitt and Harry Roberts. You can also reach out to any Everyman Cinema staff member at the conference. We all can also be reached via email. All information will be kept confidential unless we determine that disclosure with appropriate third parties (including but not limited to law enforcement, Everyman Cinema, etc.) is necessary. We will discuss your options with you before we take any step unless your security or that of other attendees is at risk.