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Can video be controlled by clicking another element?

Hello! I am using to filter through videos using a dropdown link. The issue I am having is that once a video starts playing, it doesn’t stop. Even when a dropdown filter is selected or even when the next video is selected to play. Is there a javascript that can be used to control video when another element is clicked?

Here is the website page. Scroll past the first video to the case study. The filtered videos are there. Thank you for reading and for any suggestions!