Thanks for the quick reply. I had switched themes temporarily to observe the video behavior outside of GeneratePress and you must have snuck in in that little window!
I guess I’m spoiled since I’m used to simply pasting in a YouTube share url and having it size correctly automatically.
In GP, it looks like I have to add the full embed code, plus the code shown on your support page. Not a big deal, but it’s odd to have to go through the extra steps.
In case you’re curious, on this page https://playitdailyukulele.com/the-mouse-the-cracker-and-the-ukulele/
I’ve added the same video twice; once with your extra code, once with the straight YouTube url.
So it DOES work correctly with your code, and incorrectly without (the narrow I make the page, the more awkwardly out of proportion the video becomes).
Thanks.