EngInSite CSS Editor - Version 1.2 EngInSite CSS Editor is a fully-integrated Cascading Style Sheets (CSS) development tool, designed to save you time and unleash your creativity.You will appreciate such features as the Tag Editor, the compatibility and syntax check, the integration with the W3C HTML Validator and the full-featured autocomplete.And, don't forget to check the compliance of your style sheet against different browsers and standards and preview your HTML page in the different browsers - this great tool will help you in that work too.Concentrate on the look and feel of your web site and let EngInSite CSS Editor manage all the CSS jobs for you.