Forum:Image background

Im starting a wiki artheat which has a black background. I'm trying to change the background of the images I upload to be black as well. I put the following into my monobook.css:
 * img { border: none; background-color: #000000;}

but the background and border are still there. I'm still new to working with css and most of the code I'm using is cut and paste so maybe there is a bigger mistake in my monobook.css. Please Help. Robertsloon 18:40, 29 May 2007 (UTC)