Good to all.
I decided to make a substrate for the site and here is something I do not understand:
(site on LAN, without server, i.e. just html)
This code, for example, works correctly in the browser, i.e. image is displayed:
background-image:url( http://siteaddress.ru/logo.gif); And this, when the file on your computer, no.
 background-image:url(images/logo.gif); And the DreamWeaver itself in the design part of the picture shows.
Why it happens?

/images/logo.gif) - Yakovlev Andrei