Hey @TShannon3 this is down to the container of the section you’re embedding the iframe in. It would really depend on the styling and layout of the page you’re embedding it on. Some things you can try is changing the container height through it’s css if you like. You can also try wrapping the iframe in another container with a set height too.
There’s a few articles online I found with some workarounds to help stop this, you’ll need some css knowledge however!