I am in doubt. That wouldn’t even compile. But who am I to think somebody changing something like this would actually do a test compilation afterwards…
HTML isn’t compiled, and unknown attributes are allowed. The best practice is to prefix non-standard attributes with data- (e.g. <div>) but nothing enforces that. Custom attributes can be retrieved in JavaScript or targeted in CSS rules. </div>
I am in doubt. That wouldn’t even compile. But who am I to think somebody changing something like this would actually do a test compilation afterwards…
HTML isn’t compiled, and unknown attributes are allowed. The best practice is to prefix non-standard attributes with
data-(e.g.<div>) but nothing enforces that. Custom attributes can be retrieved in JavaScript or targeted in CSS rules. </div>