Background animation scale for mobile

Hey guys,

Im trying to scale a background animation for my website, but cant seem to get it right fro mobile. I want it to take up the whole screen like the desktop version. 
im using this code. 

Quote

/* mobile animation for mobile*/
@media screen and (max-width:991px) {
section[data-section-id="65c6dd049ae3b0452184eec0"] {
    min-height: unset !important;
    height: 60vh;
    margin-top: 12vh;
}
}

but i cant seem to get it to work, any advice? 

Cheers, 

What is your site url?