Hi,
via html property, of course. And with parentfont := false;
something like this:
<FONT size="12" face="Segoe UI"><b>Příloha VI. tab. 3</b></FONT><br> etc .....
Here is example project with the exactly same html as on pictures
THtmlabel well formatted, but TAdvRicheditor not
https://cloud.consulteco.cz/f/ca88166e5234471a8a10/