Hi I have a problem in this whoole site https://www.lakecomoinstitute.com/prodotto/webinar-perio-parodontologia-invernizzi/
that looks like this:
after 4 scroll-down the scrollbar start flickering and goes crazy up/down very quickly while the page is stopped (not mooving up and down like scrollbar). Inspecting I see that the main-header layout-logo-menu “goes from” display: none “to” display: block "in loop.
It is certainly associated with the menu because by eliminating that part of the code the problem of flickering disappears.
On the homepage the problem is slightly different: instead of flikering up/down it makes a jump only once to scroll downwards and vice versa scrolling upwards it makes a jump upwards, try to believe
Has anyone ever had similar experiences and can you help me solve this problem?