CSS is important. And it is being used more and more often. Cascading Style Sheets offer many advantages you don’t have in table-layouts – and first of all a strict separation between layout, or design of the page, and the information, presented on the page. Thus the design of pages can be easily changed, just replacing a css-file with another one. Isn’t it great? Well, actually, it is.
Over the last few years web-developers have written many articles about CSS and developed many useful techniques, which can save you a lot of time – of course, if you are able to find them in time.