- From: Ian Hickson <ian@hixie.ch>
- Date: Fri, 24 Feb 2006 02:28:38 +0000 (UTC)
On Tue, 5 Apr 2005, Lachlan Hunt wrote:
> >
> > For example, what is the resulting DOM of this document:
> >
> > <title>Foo</title>
> > <script type="text/javascript" src="bar"></script>
>
> For this, there is no implied body, as there is no element to imply it.
> SGML rules apply here, as they are expressed in the DTD, and I don't
> think HTML 5 should change them. The resulting DOM will be the same as
> that for an HTML 4 document, which is:
>
> html
> |
> +-head
> |
> +-title
> +-script
HTML5 also causes a <body> to be implied. My understanding actually is
that in HTML the <body> is required, and so always implied (though it
cannot be empty, so the document above would be invalid, and technically
behaviour is undefined by HTML4 and SGML specifications).
> > Is there a BODY element in this document (or, is there always a body
> > element?):
> >
> > <style type="text/css">
> > body{ background:lime }
> > </style>
> >
> > ... or this:
> >
> > <title>Bar</title>
>
> No, there is no implied body element in either of those fragments.
In HTML5, there is. In HTML4, it's undefined.
> Run all of your examples through the validator, with the the Show Parse
> Tree option selected and see for yourself. The rules for an HTML 5
> document will be the same as HTML 4.
There are exceptions, mostly for backwards-compatibility reasons, but no
particularily important ones as far as authors are concerned.
HTH,
--
Ian Hickson U+1047E )\._.,--....,'``. fL
http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,.
Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
Received on Thursday, 23 February 2006 18:28:38 UTC