Button hover modification

Hello,

I struggle to change the color during mouse hoover of the black button in the top.

best regards


Here is my site Read-Only:

https://preview.webflow.com/preview/yacines-sublime-site?utm_medium=preview_link&utm_source=designer&utm_content=yacines-sublime-site&preview=d2f416c1106e983ea3722580c6076d9c&pageId=6386aabb745e453b27c1068c&workflow=preview