Right. I was struggling for a term; canvas is correct.
> > Does this apply to background color as well? If not, what is the
> > behaviour if the UA cannot display all the document at once? Does it
> >
> > a) blend the colors over the whole document and then display a part of
> > that blend, or
> >
> > b) blend the colors over the current window and then scroll the content
> > over that fixed background?
>
> A good point. While the latest draft introduced the pseudo-element
> '$CANVAS' to address the canvas, we're about to drop it (it
> complicates the syntax, and specifying background in the BODY element
> is a de facto by now). Instead, the 'flow' property will see a new
> value:
>
> flow
> Value: block | inline | canvas
> Example: BODY { flow: canvas }
>
> Thereafter, properties assigned to the BODY element will apply to the
> canvas, not to the full length of the document.
OK. Could you explain what would happen with the other two values in
this situation?
> If a gradient over the
> full length is what is wanted, one can either change the flow property
> of the BODY element or address the HTML element. In that case, it's
> undefined how the UA should display partial documents
> (w.r.t. properties that depend on knowing the document height).
Rather than have the standard say it is undefined, I would rather have
it say that satisfying the request may not be possible until the
document is fully loaded, or with partial documents.
I just have an allergy to ISO-style "this interesting bit is defined
to be undefined" nonsense.
-- Chris Lilley, Technical Author and JISC representative to W3C +-------------------------------------------------------------------+ | Manchester and North HPC Training & Education Centre | +-------------------------------------------------------------------+ | Computer Graphics Unit, Email: Chris.Lilley@mcc.ac.uk | | Manchester Computing Centre, Voice: +44 161 275 6045 | | Oxford Road, Manchester, UK. Fax: +44 161 275 6040 | | M13 9PL BioMOO: ChrisL | | Timezone: UTC URI: http://info.mcc.ac.uk/CGU/staff/lilley/ | +-------------------------------------------------------------------+