Facebook button, Size not staying as set

So I had added the Facebook “Link to Facebook page”
And after some time fiddling I finally had managed to make the button small enough for my needs.
Sorry cant remember what it took to do it.

I was about to finally publish the completed site and I look at the browser and my Menu flipped over to vertical from horizontal down the left and shrank in width, not sure why, I hit undo a few times and it went back to normal.

But then I spotted my Facebook button was twice the size it had been.
I tried to delete and re add that didn’t fix it cant drag it small enough.
Tried each flavor of the Icon graphic and button type.

it will shrink if I remove the URL.
If I put the url back in the button expands again.

I cant get it to shrink back down.