Thank you for the quick reply.
I understand what the documentation says. But:
On the page www.deijsmannetjes.nl the header "Wie zijn wij" (right of the english text block 'Flyer now available') is currently an h2 . Currently (according to the Firefox inspector) the Font is Segoe UI Light 32 px. On the title tab there is no Font selected
When I change the title to an h1, the font on the size changes to Tahoma 40px. But in the Title tab, still no font is selected. When I want to change to font to Segoe, I can't as it is not in the dropown list.
What am I doing wrong?