having issue with the main picture

[rogerzac]

I used a theme to make my site.

but now mobile responsiveness for the main slide picture aint working. 

here is the site url https://bestsportsmask.com/

[Goldneye]

HI, by clicking the link there is no home page banner, just text.  To confirm, is your web page with singular Sport or Sports with an s?  This is another business with the same web name but with an s.