There is a very weird display bug on this site : when I access it in lanscape horizontal position, with my iPhone 8 on Brave or Safari : all the text is trembli

There is a very weird display bug on this site : when I access it in lanscape horizontal position, with my iPhone 8 on Brave or Safari : all the text is trembling, unable to settle on a size. Trapped in a resizing loop. If I rotate the phone verically it settles properly and then also horizontally. But if I reload the page (horizontally) it goes nuts again :)