I know HTML and CSS coding pretty well, but I've not used it in a while and have gotten rusty. One thing I've seen done and would like to be able to do is the background paper design seen here: http://buynowshop.com/. I don't want to copy the design, but just want to know how they got the paper look and, especially, how they make the paper appearance repeat to make it look like a full sheet of paper, stretched to hold the posts. I also want to know how they made the transparent tape look for the right sidebar of the theme. I know it involves creating images, but my main thing is, how do I use CSS to place the images to fit my text like they do in this theme? I'm guessing I need to use the "repeat" setting (or declaration; I forget what it's called in CSS, sorry) for the images.
I hope I made this understandable. I'm not sure how to word what I'm asking. But if anyone can help me improve my designing skills by getting through this, I'd be super-grateful! Thanks!