Aspose::Words::Saving::HtmlSaveOptions::get_CssClassNamePrefix method. Specifies a prefix which is added to all CSS class names. Default value is an empty string and generated CSS class names have no common prefix in C++....useful, for example, if you add custom CSS to generated documents...line-height:normal; font-family:Arial; font-size:11pt; -aw-style-name:footer...