j9t’s Twitter Archive—№ 698

#HTML/#CSS. @css’s @chriscoyier on hidden and how it was “weak” b/c one could unhide it via CSS: css-tricks.com/the-hidden-attribute-is-visibly-weak/. Curious: Is it a common assumption this was immutable? Maybe it seems odd but other attrs and default styles can be changed, too, counter-intuitively.