@Levike98 add !important to it, so it becomes
@media screen and (max-width: 749px) {
.header{padding-left: 0 !important; padding-right: 10px !important;}
}
@Levike98 add !important to it, so it becomes
@media screen and (max-width: 749px) {
.header{padding-left: 0 !important; padding-right: 10px !important;}
}