Sentinel: Your Web-Performance Watchman

Workshop: Smashing Workshops, Zürich, December 2013

Written by on CSS Wizardry.

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Zürich, CH
10 Dec, 2013

I’m extremely excited to announce that I will be running a workshop with the fantastic Smashing team over in Zürich, Switzerland, on 10 December, 2013.

Find out how to plan, scale and manage a large front-end by learning about the optimal CSS architecture, performance, naming conventions, design rationalisation, pragmatism, OOCSS, Sass, and lots more.

Book now!

Hi there, I’m Harry Roberts. I am an award-winning Consultant Web Performance Engineer, designer, developer, writer, and speaker from the UK. I write, Tweet, speak, and share code about measuring and improving site-speed. You should hire me.

You can now find me on Mastodon.

Suffering? Fix It Fast!


  • inuitcss
  • ITCSS – coming soon…
  • CSS Guidelines

Next Appearance

  • Talk & Workshop

    WebExpo: Prague (Czech Republic), May 2024


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.