title: Problem when scrolling on mobile menu on several browsers
body: <p>i have problem when scrolling on mobile menu with several browser, at my default browser on android and safari browser on IOS, which is when you open the mobile menu and you scroll to the bottom, it seems it will follow to scrolled too with the page behind the menu, so it seems like not fixed/stay
  but when i try on desktop with mobile view, and also using chrome and others on my phone it will fixed and stay. maybe you can help me with inspect element to look at code, if there is something i need to fix
  the website is here: <a href="http://enerdoverdose18.staging.lipsiaserver.com/it" rel="nofollow noreferrer">http://enerdoverdose18.staging.lipsiaserver.com/it</a></p>
  
  <p>Thanks a lot </p>