title: Fixed main content and slide menu as overlap on Multi Level Push Menu
body: <p>I am using this menu for my responsive website.</p>
  
  <p><a href="https://tympanus.net/codrops/2013/08/13/multi-level-push-menu/" rel="nofollow noreferrer">https://tympanus.net/codrops/2013/08/13/multi-level-push-menu/</a></p>
  
  <p>This works great, except that I am unable to change the behavior where it pushes the main content to the right. I want to make the main content fixed and instead the menu should overlap the main content. </p>
  
  <p>I had tried many things, but not sure how to achieve this. Any help is appreciated.</p>