Vimeo Modal - Remove Div on Click

I have added a vimeo video to a modal using a show hide interaction. No problems there.

The issue is when I close the video with the close button, the vimeo video (the audio) keeps playing in the background. How can I fully remove the modal div from the page on button click? Thanks!

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

This old post might help you with this: