Italicize command doesn't work properly

Hi everybody!

I worked on two projects but then I decided to move one page from one to the other. When I copy-pasted the page into the new project, the main title in the hero section unexpectedly changed the angle of the “italicize” command :flushed:.
Moreover, the div that contains the title, cuts the final letter.

Is there a way to fix it?

Here is the original page (the correct one):

Here the final page:

Thank you in advance!