Div Tag's Bg Image Not Changing

[An Alien]

HTML:

<div id="content" >		</div>

CSS:

#content {	background-image:url(bg.jpg);	width: 851px;	height: 100%;	margin-left: auto;	margin-right: auto;	padding-top: 10px;	}

That's not the whole code but I just want to make sure it's right. I had the bg.jpg in images folder, but since it was not working, I tried putting it in the root and in still doesn't work. I even tried using the html tag for background image but that didn't even work, I made sure the background image name and the extension was correct too.I also tried adding an actual height and a test paragraph and image inside the content div.

[Err]

background-image:url(bg.jpg);If that's how you're calling your background image, make sure the image is the same folder as your CSS. If you were calling it from the root directory, then add a leading slash there. url(/bg.jpg);