title: Stop with scrolling (when menu is folding out)
body: <p>I'm currently working on my website: <a href="http://jellekok.com/new/index.html" rel="nofollow noreferrer">http://jellekok.com/new/index.html</a>
  I made a menu which works how i wanted, only one thing is not working yet. If you open the top right menu, you shouldn't be able to scroll. Only if you go back to the website you should be able to scroll again.</p>
  
  <p>Does someone know how to do this? Thanks in advance.</p>