Hello,
Add for example the below custom to page custom CSS https://prnt.sc/25yegmw
@media only screen and (max-width:768px){
.et-custom-height {
min-height: 200px;
}
}
@media only screen and (min-width:769px){
.vc_row.wpb_row.et-custom-height {
min-height: 436px;
}
}
Regards