I found the issue, it was my mistake, sorry!
Sure,
I was changing the font size by selecting words and choosing size from the dropdown: H1, H2, H3, p… The right html codes were shown in the HTML but when I clicked ‘Preview’ on the right, the letters were all the same size in the text.
Then I used <p style=”font-size: 30px;”> </p> … to give different sizes to the words. That worked.
