How to change the size of buttons and thumbnails in polaris or move them

[DeveloperMax]

I can't move the buttons and thumbnails on polaris or change how they look or how big they are. I don't know if you can even change that in polaris so please tell me if I can do something to change size or where I can move it and how. Also I'm using React for my project

[Zworthkey]

hii, @DeveloperMax 
Kindly share your store URL and a screenshot so,
I can solve your issue and give you a proper solution.
Thank You.