How do i Create a dropdown like this?

Design help Layout & Design
1

Hello,

I am wondering if there is any way to link a button to a dropdown menu. And if you can link button to everything even though it is not in the element from start.

I am rebuilding a site. You press the dropdown, pick a choice and then press the button to submit. How do I rebuild this?

Screenshot 2022-11-10 at 22.18.27
Screenshot 2022-11-10 at 22.18.32

Here is my site Read-Only: LINK
(how to share your site Read-Only link)