I tried on 4 different macbooks with Safari, it happens on all of them.
Its not an Elementor problem, because I tried it on a separate installation with WPBakery and its the same thing.
Actually, just check you own demo, it happens too…
https://i.gyazo.com/ed233478937ce54c04973e1b83bbd14f.gif
This is something related to the theme having a problem with Safari, so I would need a solution from you.
Thank you.