Expression Web Add-ins - Version 1.5 The complete collection of Expression Web Add-ins from Ajatix.Expression Web add-ins (add-ons) are extensibility modules designed to add extra capabilities to Microsoft Expression Web.This pack of add-ins is built around most popular web widgets, such as Pure CSS Drop Down Menu, Son of Suckerfish Drop Down Menu, Lightbox. Each Expression Web add-in in this pack features rich GUI with live preview, preset themes and a powerful style editor, allowing for complete customization. Designed in accordance with best coding practices (structure/style/behavior layer separation, CSS positioning, unobtrusive JavaScript, progressive enhancement, etc.) these add-ins generate cross-browser compatible, SEO-friendly output, that fully complies with W3C HTML and CSS standards.