EGPowell21

Hey everyone, I'm seeking help for how to get my video banner to be replaced with an image when viewed on mobile. I've watched dozens of youtube videos & got it to work, but when I changed my video banner recently I can't seem to get it right no matter what I replace/do. Here's a screenshot of the code I have on my site, ignore the top parts as it's for a font I'm using! I'm not at all skilled in coding, I've just learned things as I go, so I'd love any help with troubleshooting.