Microsoft Expression Web, also called Quartz, is an HTML editor and general web design program product by Microsoft. It is usable free of charge from Microsoft and is a elemental of the discontinued Expression Studio.
Expression Web can layout and establish web pages using HTML5, CSS 3, ASP.NET, PHP, JavaScript, XML+XSLT and XHTML. Expression Web 4 requires .NET Framework 4.0 and Silverlight 4.0 to build in and run.[2] Expression Web uses its own standards-based assimilation engine which is different from Internet Explorer's Trident engine.