HtmlSaveOptions ExportXhtmlTransitional property. Specifies whether to write the DOCTYPE declaration when saving to HTML or MHTML. When true writes a DOCTYPE declaration in the document prior to the root element. Default value is false. When saving to EPUB or HTML5 Html5 the DOCTYPE declaration is always written in C#....0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional...onal.dtd" > < html xmlns = "http://www.w3.org/1999/xhtml" xml...