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Tell us what’s happening:
Good morning,
I am currently working in Firefox and I need to insert a video. I understand that different browsers support different compatible formats which I have entered. My video does not want to populate in both chrome and Firefox. In chrome I get a screen with a play button that is inactive and in Firefox I get a MIME message. I have researched and I am stuck. I also read something about the

Your code so far

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.86 Safari/537.36.

Link to the challenge:

@AJStolp

Where you are getting the video from? Did you upload it to the assets of Codepen? I don’t see how you are telling it to get the video from somewhere.