Basel: shows large font on Posts (but not on Pages)

Hi guys, how are you?

How to make font size of list in posts the same size as normal paragraph text?

Problem: when I add a list to the Post, it shows as big text (https://ibb.co/nmHW67q). The rest of the text in the paragraph is normal. I do not apply any style to make big font size. This looks ugly, please say how to fix it.
Example post with this problem: https://www.independent.wine/2020/02/19/italian-red-wine-a-complete-guide-to-finding-your-favourite/

However, this problem does not repeat on Pages. When I add a list on a page, text has the same size. Example: https://www.independent.wine/about-us/