Thank you, tuanphan.
Unfortunately this has just added white space above the video. I can't drag the video container up any further.
I need no white space in the container. Essentially I need to resize the container, not the video. To be honest, it doesn't even need to match the size specified above. I just need it thinner.
So it would act as an animated banner at the top of the page with no white space above the video and the ability to have text directly below it.
Working on this page https://mackerel-flatworm-jrrl.squarespace.com/land
With this page as reference https://mackerel-flatworm-jrrl.squarespace.com/our-homes
Getting the video on the top of that first link 'Land' to look like the image at the top of the second link 'Our Homes' would be ideal.
Any help is massively appreciated!