Change Button position ( single product)

Hello,

I need some help with a code, In the single product page this button ” personalize design” is not aligned with “add to cart” and has no space between each other. I want to create this space and an alignment between them, OR to move the button under, between “add to cart” and “add to wishlist”, I don’t know if can I change the color from grey to another.

Can U help me pls? Best Regards!