This Workshop is for 4D Developers who are looking for an introduction into the world of CSS. CSS is a great standards-compliant way of designing the look of your web application or web site. As we will see soon, CSS is an evolutionary-step forward in the realm of web page design. It simplifies and organizes design in elegant ways. Also, with the popularity of the 4D Ajax Framework many 4D developers are porting their database applications to the web to have much of the responsiveness and interactivity of desktop applications. Thanks to CSS, these Ajax web applications also have to look and feel of desktop applications as well. Whether you apply it to your web application or website, CSS is the right way of doing web design.