Thank you for replying.
I have the same effect as in the link you provided. Except that the current language displays on the homepage, which is a static page.
I’m not sure to understand your second question “Do you mean page (as wp) or webpage ?”. I’m making a website, not a blog. I’ve put my content in “Pages”, not in “Posts”. Is that what you needed to know ?
I’ve tried to send you a message via the support form (about 2 weeks ago, I’d say), but this website isn’t online yet, I think that didn’t work within a local environment. Would it be easier if I put the preliminary version online?
Have a nice day!