Animated Nav Menu

Im trying to create a animated Nav Menu. Iv created an animation so that when you click the hamburger button the menu moves from off screen to the to the left. the problem is that im unable to make the NAV Menu hide intially. Iv used Transform Move to do so. When I adjust it in Transform Move it appears off screen in designer mode but not on preview mode. Any help.

Here is my public share link: LINK
(how to access public share link)