YouTube used to embed, on my blog at least, with a nice big, square, natural size window onto the clip. A generous taster, encouraging the viewer to watch. I wish I could attach a screen shot: I actually have one.
I now get a narrow slit. There are examples at my home page.
How to fix? Is it possible?
I have tried the different size options which YouTube appears to offer and it makes no difference. I get the same result in every case.
The blog I need help with is davidderrick.wordpress.com.