Heights: Adjusting the height of a banner video on the homepage

Hello everyone,

I'm trying to adjust the height of the banner, which is looping a video on the home page. It currently crops, but I'd like it to drop down further, revealing the full 16x9 aspect ratio of the video. I've tested it on other templates but can't get it to work on this one.

Here's the Site - qualiavisuals.comWe're using - Heights

Thanks in advance,James