Connect Webflow form with embed code

Design help General
1

Hi all,

I have a slider as an embed code. Now I want to connect Webflow form with my custom button inside that embed code. How I can do it?

Basically, that my custom button calls Webflow form as a pop up/modal form.

Thanks in advance!

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