scss for loop

@for $i from 0 through 100 {
  &.cell-#{$i * 5} {
    width:round(percentage($i * 5/100));
  }
}

// output↓
// html
class="cell-5"
class="cell-10"
class="cell-15"
class="cell-20"
...

// css
.cell-5 {
  width: 5%;
}
.cell-10 {
  width: 10%;
}
.cell-15 {
  width: 15%;
}
.cell-20 {
  width: 20%;
}
...