Aspose::Words::Saving::HtmlSaveOptions class. Can be used to specify additional options when saving a document into the Html, Mhtml, Epub, Azw3 or Mobi format. To learn more, visit the documentation article in C++.... The default value is false . get_AllowNegativeIndent...saving to HTML, MHTML or EPUB. Default value is false . get_CssClassNamePrefix...