Heading style with html to Word

Hi, I am using aspose to convert html to .docx and it works fine.
I have a question about heading styles with html and Word, all heading style (heading 1, heading 2 etc.) are well managed but how can I use the simple “Heading” style use for the Title of the document in htm as there is no such a style in html?

@CyrilGa,

Thanks for your inquiry.

Could you please share some more detail about your input and expected output documents? We will then provide you more information on this along with code.