Beautifully done! 
I have no css knowledge at all, therefore I would like to know if I
could make the h1 headings centered instead of left-aligned by an additional snippet? If yes, what could that snippet look like?
Beautifully done!
I have no css knowledge at all, therefore I would like to know if I
could make the h1 headings centered instead of left-aligned by an additional snippet? If yes, what could that snippet look like?