What is CSS Layout? 

CSS layout uses style sheets to define the placement of elements on a web page. Typically CSS layout replaces tables, which are currently the most popular method of placing page elements. There is a common misconception that CSS layout techniques are incapable of producing complex page layouts. While it is true that tables generally provide more flexibility, I will show you that complex layouts are quite possible with CSS.

To get a quick look at the nuts and bolts of CSS layouts, take a look at the markup of a 3 column liquid page layout with a header, first done with tables, then with CSS.

Why Use CSS for Layout

I’ve already mentioned a few of the negatives of CSS layout and hinted at some of the benefits. Let’s take a look in more detail at the pros and cons of CSS layout. In the end, I think you’ll agree with me that the benefits far outweigh the problems  

Layout Resource 

• Faux Column CSS Layouts - Code-Sucks
  All layouts have been made using faux column techniques
• Fixed Width CSS Layouts - Code-Sucks
  All layouts have been made using fixed width CSS techniques
• CSS Intensivstation
  All layout templates are XHTML 1.0 and CSS2.
• CSS Frames Layouts
  Frames are also possible with CSS
• A collection of 168 Grid and CSS Layouts
  Simplify your CSS Site Designs with 168 of the most useful Grid and CSS Layouts.
• CSS Layout Generator
  The layout generated has changed significantly from previous versions. The main reason for change was to simplify the layout and in doing so make it easier to use. It no longer provides fixed width columns with fluid center or full length columns by default.

Tutorial

• Advanced CSS Layouts: Step by Step
  Step by Step advanced tutorial
• Maxdesign
  Floatutorial, Two columns with color, Selectutorial, Liquid Layouts, Colored boxes and single column layout with tutorial
• glish.com
  CSS layout techniques
• Box Lessons
  Owen Briggs has expanded his tutorial into a very nice resource that not only provides some very useful layouts, but also details all the aggravating problems he encountered while developing them.
• CSS layout models CSS layout models description and sample