How do I limit the html.supernova class that extends after a form?

So when creating a new webpage, we incorporated a jotform for users to sign up for our service. After embedding it into wordpress, I have a huge amount of white space that extends after the edge of the form. when using the debugger this has been classified as a html.supernova element that seems to be coming from the form itself. How would one modify this to end when the form does? 

Thank you much!

In your embed code, there is a height attribute:

<iframe class="wp-embedded-content" sandbox="allow-scripts" security="restricted" width="100%" height="1000" src="//oembed.jotform.com/form/70035285651150#?secret=YS2UEZUtq6" data-secret="YS2UEZUtq6"></iframe>

This is currently set to 1000 which is fairly large.  Try reducing that value until the the form no longer takes up excess space.