Hugo Youtube shortcode broken in Outpost theme

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1

I’m a bit out of my depth here, but I used Hugo shortcode to embed a video and it looks good on a full sized browser screen, but it starts getting cropped as you shrink the browser horizontally. The play controls disappear with half the video, while it’s completely unusable on a smaller device like phone.

Any ideas of how I can fix that? This is the post in question:

2

I think I fixed it by going straight to HTML, seems to work ok. For future reference, something like this:

<iframe src="https://www.youtube.com/embed/oy9S3UZR5IE" frameborder="0" allowfullscreen></iframe>