Fulls screen hero section needed. 100vh hero section looks funny in my browser

Design help General
3

I’m not techy enough to know what to do to fix this. I just want my background image to fill the full height of the user’s viewport (desktop and mobile) and cut the width, as needed to maintain the full height. How do I do this?

https://brians-dandy-project-756d8f.webflow.io