Help with resizing

Site URL: https://www.statementmakerz.com/

I need some help please. The image on my home page is not showing the entire product on my mobile page and cuts off some on the desktop version. I’ve tried readjusting but nothing is happening. May I get some assistance please. 
 

Pictured added of how it looks on mobile 

12 minutes ago, tuanphan said:

Add to Home > Design > Custom CSS

/* resize mobile banner */
@media screen and (max-width:767px) {
.homepage #page section:first-child {
    min-height: unset !important;
    height: 40vh;
    margin-top: 15vh;
}
}

 

Thank you very very much!