You seem to assume that old CSS properties can be substituted for new ones. But as I said, to my knowledge this isn’t possible in most cases. Can you give an ex

You seem to assume that old CSS properties can be substituted for new ones. But as I said, to my knowledge this isn’t possible in most cases. Can you give an example of two CSS properties where 'either is fine, but only one should be used'? Or do you mean something else altogether by 'CSS attributes'?