.grid {
    display: grid;
}
.grid-2, .grid-2c {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
.grid-3, .grid-3c {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}
.grid-4, .grid-4c {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}