this post was submitted on 05 Nov 2024
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Programmer Humor

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[–] dan@upvote.au 42 points 1 month ago* (last edited 1 month ago)

HTML isn't compiled, and unknown attributes are allowed. The best practice is to prefix non-standard attributes with data- (e.g. <div data-foo="test">) but nothing enforces that. Custom attributes can be retrieved in JavaScript or targeted in CSS rules.