(Code embed)Adding a close button inside a div element

Hey guys, looking for help with possible coding solution.

Goal: To embed a close button X positioned to the top right of a fixed background video, to provide an option for users to close the video.

Poor visual example (apolagies in advance):

I’m reading up on W3 schools to see if i can find out where I’m going wrong but to no avail.

Background video element (bottom-right) is the focus, not the bottom-right video example.

Is there a way to complete this…that can be passed on? Cheers ~ Steve

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