This is such a simple question that no articles seem to mention how to do it. How do I specify a LOCAL (i.e. on my computer) background image in the CSS? Here's my code that isn't working:

body{
background-image:url(assets\logo.png);
}
Thanks for the early response Slash. Just to clarify, the site is in an early development stage, on my PC. From the root folder of the index, logo.png is buried in a folder called assets.
(Windows PC)