&font{
    &-base{
        color: $font-color-base;
    }
    &-help{
        color: $font-color-help;
    }
    &-disable{
        color: $font-color-disable;
    }
    &-bold{
        font-weight: bold;
    }
    &-normal{
        font-weight: normal;
    }
    &-lighter{
        font-weight: lighter;
    }
}