Most web designers have got the message about using CSS to control the layout of their pages.
However, testing different layouts in different browsers on different machines can be a time consuming process. This isn't helped if you have to add "Edit CSS file" and "Upload to Server" steps to your development process.
This project aims to allow designers to try lots of variations on CSS layouts all from the browser.
As the configuration of the layout is set in GET variables, it's simple to email a link to a colleague or client to develop a layout.