Hi Aggie,
Errr, sorry didn’t even realize there was a reply 
What seems to be the issue here with the height? I went to view your preview link of the mccormick case study and:
a) The desktop and mobile devices are sized correctly for a small phone
b) The video doesn’t auto play (Perhaps you have an updated link or haven’t republilshed the site since?
So just not sure what I’m supposed to be looking at