CSS - images set to "invisible" - do they still download?

Greetings

Looking at adding appropriate handheld access to a web application. As its
JSP based, considering a combination of the use of "media" stylesheets
("screen" for normal, and "handheld" for ... handheld) and dynamic JSP
(after testing useragent) to cut down the size of what's presented.

Question: does anyone know that when I have images (all or some) in the
style sheet set to display: none; the (handheld) browser will still download
them but not display? (i.e. still bigger bandwidth). I would assume they're
not downloaded? If they are, well control that dynamically from the server

Thanks all
Cheers
Rob

RobM

"RobM" <> wrote:

>Question: does anyone know that when I have images (all or some) in the
>style sheet set to display: none; the (handheld) browser will still download
>them but not display?

Depends on the UA, some do, some don't.

--
Spartanicus

RobM wrote:

> Question: does anyone know that when I have images (all or some) in the
> style sheet set to display: none; the (handheld) browser will still download
> them but not display? (i.e. still bigger bandwidth). I would assume they're
> not downloaded? If they are, well control that dynamically from the
> server

It very much depends on the browser. Some are smart enough to download
only the images they need. Others seem to simply download all images
linked to by the CSS, assuming they'll be needed at some point in time.

This is something to bare in mind if you use a large background image on
just one or two pages.

BODY.special { background-image: url("large-bg.png"); }

in your stylesheet may download the large-bg.png image even on non-special
pages.

--
Toby A Inkster BSc (Hons) ARCS
Contact Me ~ http://tobyinkster.co.uk/contact

"RobM" <> wrote in message
news:1macg.8515$...
> Greetings
>
> Question: does anyone know that when I have images (all or some) in the
> style sheet set to display: none; the (handheld) browser will still
download
> them but not display? (i.e. still bigger bandwidth). I would assume
they're
> not downloaded? If they are, well control that dynamically from the server
>
> Thanks all
> Cheers
> Rob
>

Thanks for the replies, guys. Seems the way to go is (if yer using
dynamics.. asp/jsp) do it at the source for the big stuff (graphics), media
css for widths and placements.

Cheers
Rob