Horisontal scrol bar on centar when section is selected

Hello!
I need help.
i am trying to center the horizontal scroll button to the center when it is selected. When the button leading to the section is on I want it to be in the center. Thanks a lot!
NOTICE: ITS JUST FOR MOBILE. cant see on computer view.

https://preview.webflow.com/preview/sajt-za-qr-menu?utm_medium=preview_link&utm_source=designer&utm_content=sajt-za-qr-menu&preview=e4e2bc434a8e5d1a0964929717205417&pageId=6320527fd655df7752907044&workflow=preview

Here is my public share link: [LINK]1
(how to access public share link)