Contact Me

Please note that I get a lot of email, so it may take me a while to get back to you. I do try and reply to everyone, no matter how long it might take, but I do also try and prioritise the order in which I respond: client and work-related emails first, then speaking requests, and then general requests for help and advice.

If I do seem to be taking a while to respond, I would not be at all offended if you tweeted at me, or sent me a follow-up email, to remind me to reply.

Twitter: @csswizardry
For informal, quick contact and questions, feel free to fire me a Tweet!
For longer enquiries and questions, please send me an email.
For infrequent updates about discounts, exclusive content, resources, etc.

Postal Address

My office is based in the centre of Leeds, at Duke Studios:

CSS Wizardry Ltd.
℅ Duke Studios
3 Sheaf Street
LS10 1HD

Hi there, I’m Harry. I am an award-winning Consultant Front-end Architect, designer, developer, writer and speaker from the UK. I write, tweet, speak and share code about authoring and scaling CSS for big websites. You can hire me.

I am currently accepting new projects for Q1–2 2019


  • inuitcss
  • ITCSS – coming soon…
  • CSS Guidelines

Next Appearance

  • Talk & Workshop

    CSSCamp, Barcelona (Spain), July 2019

I am available for hire to consult, advise, and develop with passionate product teams across the globe.

I specialise in large, product-based projects where performance, scalability, and maintainability are paramount.