Making AI Tangible

Guide to CSS Support in Email Clients

ByTamara Gielen Design & Layout

The folks over at Campaign Monitor have been hard at work overhauling their CSS guide.

new-css-guide
The new guide now includes the following updates.

  • Mobile email clients – they took the iPhone, Android, BlackBerry, Palm Pre and Palm Treo for a spin. 
  • Focus on the most popular clients – the web-based version of the report focuses on the 10 most popular email clients. The downloadable version of the guide includes the results for all 23 email clients tested.
  • CSS shorthand – they tested the shorthand support for the font, background,padding, margin and border properties.
  • Smarter grouping – Instead of listing all CSS properties alphabetically, they’re now grouping them into categories like "text and fonts" and "color and background" to make it easier to see related properties and find what you’re looking for.
  • Partial support indicated – Email clients like Outlook 2007 offer partial support for some properties such as margin. Sometimes it works, sometimes it doesn’t. Traditionally they’ve listed this as no support, but they now indicate partial support to let you know it might require more testing.

Check out and download the all new CSS Guide.

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Tamara Gielen is an AI strategist, educator, and transformation catalyst. With over two decades of experience at the crossroads of marketing, IT, and innovation, she helps teams and leaders cut through the noise and apply AI in ways that are both smart and human.

Known for her ability to translate complex technology into clear, actionable insights, Tamara empowers people to lead with confidence in an AI-driven world. Whether on stage or in the boardroom, she brings high energy, clarity, and a relentless focus on what actually works.

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