@media screen and (min-width: 576px) {
    .box-parent{
        grid-template-columns: repeat(3,auto);
    }
}

@media screen and (min-width: 768px) {
    .box-parent{
        grid-template-columns: repeat(4,auto);
    }
}

@media screen and (min-width: 992px) {
    .box-parent{
        grid-template-columns: repeat(5,auto);
    }
}

@media screen and (min-width: 1200px) {
    .box-parent{
        grid-template-columns: repeat(6,auto);
    }   
}