On Tue, 2004-08-10 at 19:03, Gerald Himmelein wrote:
> However, if you surround the invalid nesting with <ins> tags,
> validator.w3.org declares the syntax to be valid:
>
> <p>
> Paragraph text
> <ins>
> <ul>
Its a limitation of DTDs. There isn't anyway to express that X is
allowed as a child of Y *unless* Y is a child of Z.
> I've got a web designer here who swears that the <ins> usage is
> completely valid because, after all, validator.w3.org confirms it.
While it is *valid* HTML, it is non-conforming. Validation only checks
for a subset of conformance to the specification (i.e. that which can be
expressed using the DTD).
To quote:
The INS and DEL elements must not contain block-level content
when these elements behave as inline elements.
ILLEGAL EXAMPLE:
The following is not legal HTML.
<P>
<INS><DIV>...block-level content...</DIV></INS>
</P>
-<http://www.w3.org/TR/html4/struct/text.html#h-9.4>
--
David Dorward <http://blog.dorward.me.uk/> <http://dorward.me.uk/>
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