The old HTML specification allows comments in documents, bracketed by
<!-- and -->, but I couldn't find it in the HTML+ draft. Since HTML+
is an SGML application, one would assume that comments are supported,
but I think it should be mentioned explicitly.
-- _________________________________ / _ Bert Bos <firstname.lastname@example.org> | () |/ \ Alfa-informatica, | \ |\_/ Rijksuniversiteit Groningen | \_____/| Postbus 716 | | 9700 AS GRONINGEN | | Nederland | \_________________________________|