Embedding Opt-ins

I tried to create an embed opt-in form on Elamentor. I created the webform in the Campaign Builder and formatted it. First, pasting it in as HTML code didn’t work. Then I used the javascript snippet, and that mostly worked.

The problem is, that the JavaScript snippet posts a square with tons of space under the optin and the “Captcha” logo.

Is there an easier way to create embedded opt-ins? I’ve worked with Klavyio a lot, and the process is much simpler.