How can I create an overlay form on my WP site

I'm interested in using your Stripe form.  Can it be an overlay on my WP site, or will it only be embedded on my page?

I'm concerned about a payment form being embedded on my site since my site is not SSL.

If you do not want to embed it in your WordPress site, because it is not secure, you can simply include your form's direct link: https://www.jotform.com/help/401-Where-to-Find-My-Form-URL 

Thanks BDavid for your response, but you didn't answer my question regarding an overlay of the jotform.  I guess I'm to assume that Jotform doesn't offer this coding?  I guess I can get an overlay plugin and put the jotform embed code into it...

No, we do not offer that code, just the ones shown on this guide: https://www.jotform.com/help/324-A-Guide-to-Embed-Forms-for-WordPress-Users 

Open a new thread if you need anything else, we will be glad to assist you.