About Me

Hi there, I’m Harry; I am an award-winning Consultant Front-end Architect, writer, and speaker from the UK. I help companies all over the world write better quality, more manageable, more scalable user interfaces. I am available for work.

On stage at beyond tellerrand. Photo by Stefan Nitzsche.

A Google Developer Expert, and named Young Developer of the Year (2014) by net magazine, I was previously a Senior Developer at BSkyB. I have consulted internationally with clients including the United Nations, the BBC, the NHS, Google, and the Financial Times. I specialise in CSS architecture and front-end performance for large and long-running sites and applications.

I’ve got a crush on Harry Roberts…

Andrew Clarke

I write, work, speak, and run workshops across the globe covering pragmatic, product-led approaches to building and scaling large front-ends for long-running projects and products. I specialise in OOCSS, architecture, scalability, front-end performance, and mobile and responsive web design and development.

I am a member of Smashing Magazine’s Experts Panel, co-author of a book on new approaches to web development, and lead and sole developer of the increasingly popular, open-source, OOCSS framework inuitcss. For a more comprehensive overview, please see my CV.

Most importantly, I am available for hire to help people build great products. Workshops, consultancy, training, advice, development, and more are all available to clients of all shapes and sizes, all over the world:

Hire me.


I am open to interesting and fun consulting gigs, short-term contracts, workshops and any exciting projects working with nice people starting in 2014. If you think you have something we can work together on then get in touch.

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!
Email: csswizardry@gmail.com
For longer enquiries and questions, please send me an email.


CSS Wizardry makes use of many great tools and services; tools and services that make my life as a developer much, much simpler.

CSS Wizardry is built on Jekyll, an open source static site generator. This is hosted using GitHub Pages.

The CSS is written in Sass, and built on top of inuitcss. inuitcss is a free, open-source, Sass-based, OOCSS framework with a strong focus on performance, scalability, and a small footprint. This is then built into ITCSS, a proprietary CSS architecture of mine which is designed to aid the growth and maintainability of CSS projects.

The font used is Open Sans, and is served via Google Fonts. The icons are from the Iconic icon system. The photograph used on the homepage’s masthead is of me speaking at DotYork, and was taken by Jim Poyner.

Responsive testing was made possible by Finch, an incredible tool for exposing local dev sites to the open internet.

CSS Wizardry’s roadmap and task list are viewable on a public Trello board, and all of the code that powers it can be found on GitHub. Feel free to take a look round, but please don’t steal anything.

I chose the name CSS Wizardry when I was 17 years old. It’s a decision I’m having to live with…

Interviews and Podcasts

A selection of some of the podcasts and interviews I have been a part of, newest first.

  1. AMA

    : Hashnode
  2. Podcast

    : The Web Platform Podcast
  3. Interview

    : Honeypot
  4. Podcast

    : Toolsday.io – Travel Tools
  5. Interview

    : CSSConf Australia
  6. Podcast

    : Being Freelance – CSS Wizard Harry Roberts – Developing Consultant Magic
  7. Podcast

    : Unfinished Business – Two old farts looking at their calendars
  8. Interview

    : ColourSpaces
  9. Video interview

    : DaFED
  10. Interview

    : PSDtoWP – 3 beloved front-end development tools
  11. Podcast

    : Unfinished Business – A cage full of hungry dogs
  12. Podcast

    : CDNify – An Interview with CSS Expert Harry Roberts
  13. Interview

    : Insurance By Jack – How To Get Started With Public Speaking
  14. Video interview

    : FOWD – 10 Minutes ’til the Future – Live from FOWD edition
  15. Interview

    : Workspiration
  16. Interview

    : Sitepoint – CSS Framework Fortunes and Failures with Harry Roberts
  17. Interview

    : Responsive Design Weekly – Responsive Interview with Harry Roberts
  18. Interview

    : net mag – Harry Roberts on big CSS, working for Sky, and being a home bird
  19. Interview

    : Alex Carpenter — Harry Roberts of CSS Wizardry
  20. Podcast

    : Web Payload – Why not to use IDS? The tipping point, inuitcss, and frameworks
  21. Podcast

    : Unfinished Business – Almost as controversial as putting the milk in first
  22. Interview

    : Steer – An interview with Harry Roberts
  23. Interview

    : Web Courses Bangkok – An Interview With Harry Roberts – Front-end Architect and Speaker
  24. Interview

    : net mag – Use shame.css to house hacks
  25. Podcast

    : Up Front Podcast – CSS with Harry Roberts
  26. Podcast

    : Shop Talk Show
  27. Interview

    : Martin Wolf – Interview with CSS wizard Harry Roberts
  28. Podcast

    : Young Guns Show – Scalable CSS with Harry Roberts
  29. Interview

    : Nu Blue – Off to see the Wizard

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 2017 Referral scheme


  • inuitcss
  • ITCSS – coming soon…
  • CSS Guidelines


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 and CSS scalability and maintainability are paramount.