> One example, and not the best one, is 'width'. People want 'width' to be the total width of an element as displayed in the viewport but 'width' was never spec

> One example, and not the best one, is 'width'. People want 'width' to be the total width of an element as displayed in the viewport but 'width' was never specified that way. It is the width of the content, such as text, exclusive of padding, borders and margin. But people don't read the specification, then struggle getting layout to look as they wish and blame CSS as not working "as it should". And this is something on the wiki page: > Box-sizing should be border-box by default. While yes, CSS has well-defined behaviour here, it goes against user expectation. That mismatch is the real harm here. (And to be clear: I'm not saying this with any sort of CSS WG hat on here. And I don't think the wiki page necessarily reflects the view of the whole WG, given it's not an official document.)