What Terence Eden thinks about CSS

@terence-eden · 9 positions · On ppll ↗

British open-standards and open-source technologist, formerly of the UK Government Digital Service and the W3C Advisory Committee. Blogs at shkspr.mobi, where he posts a book review most weeks.

Terence Eden did not write this page.

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1 dated position, 2026, in their own words. Our reading of what Terence Eden has said — not written or endorsed by them.

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1. 14 Sept 2026

   Our readingAttribute behavior that depends on CSS layout size rather than an element's natural or declared size is a design trap web authors should avoid relying on.

   design

   Their wordsBasically, what I'm saying is, don't use ismap unless you're absolutely sure that there will be no CSS shenanigans. Even then, it probably isn't worth the risk.

   ↗Esoteric HTML - ismap vs CSSshkspr.mobi