.c0 {
    width: 50px;
}

.c02 {
    width: 50px;
}
.c0 {
    width: 50px;
}
.c1 {
    width: calc(100% / 12)
}

.c2 {
    width: calc((100% / 12) * 2)
}

.c3 {
    width: calc((100% / 12) * 3)
}

.c4 {
    width: calc((100% / 12) * 4)
}

.c5 {
    width: calc((100% / 12) * 5)
}

.c6 {
    width: calc((100% / 12) * 6)
}

.c7 {
    width: calc((100% / 12) * 7)
}

.c8 {
    width: calc((100% / 12) * 8)
}

.c9 {
    width: calc((100% / 12) * 9)
}

.c10 {
    width: calc((100% / 12) * 10)
}

.c11 {
    width: calc((100% / 12) * 11)
}

.c12 {
    width: calc((100% / 12) * 12)
}