Hello, @Artur,
1. If you do not want to remove it with the Custom CSS then you have to remove that element from the header builder: https://postimg.cc/jLmVVsP2
2. Your issue has been solved, I have added the Custom CSS and it fixed your issue. please check back your site now after removing the browser cache.
https://postimg.cc/DJ8dKKqf https://postimg.cc/LgjPH4hS
Regards 8Themes Team.
