Homepage video not responsive

I have a video on the home page that is a ‘background video’ and as soon as it is sized down to mobile it is no longer responsive. Can anyone help?

https://preview.webflow.com/preview/converse360-v1?utm_medium=preview_link&utm_source=designer&utm_content=converse360-v1&preview=db7f5a680f0976b3ceb1930cb80dc96b&pageId=6548ed0fde2aa00dbc8596c5&workflow=preview

hi @Jocasta when you will first search this forum you will find many solved requests with identical issue