100vh not working

Hi guys,

Hope you are ok,

Does anybody know why a div with a background video set to 100vh is only taking up 90% of the screen? It worked for mobile, seems very odd!

Many thanks,


Here is my site Read-Only: LINK
(how to share your site Read-Only link)

First guess would be aspect ratio. You may need to set the video to cover so that it crops the edges when the screen’s aspect ratio does not match automatically.

Your navbar has a height of 80px and a margin-bottom of -100px.
This is pushing the main area -20px off screen upwards and leaving that 20px visible gap at the bottom.

Ah! Yes! Thankyou so much - that is awesome help!