Ok, I've got a question for some of you web-savvy HTMLers out there.

Take a look at [link=http://ladyofthefae.diaryland.com]this web diary[/link]. Do you notice how there's a section centered with the maroonish background translucently overlaid the greyscale background. I could use a similar effect, myself; I think that would help you guys read the content better.

Anybody know how to do that?