profgrid.com

Hello Christian,
3 is the default font size and therefore a <font size="3"> tag is not
generated by MSHTML. (But this will work if you change the font size from
something else to 3).
I would recommend you the following approach:
procedure TForm1.EditorCreate(Sender: TObject);
begin
Editor.ObjectStyle := 'FONT-SIZE: 12pt';
end;
-Nicholas