// width based on grid
///
/// @param {number} @columns
///
@xGridsystemWidth: ~`xGridsystemWidth = function(columns) {
  calc = (@{total-width} / @{total-columns}) * columns;
  return calc+"%";
}`;

// the grid calculation
///
/// @param {number} @colNumber
/// @param {number} @totalColumns
///
///width: ~`xGridCalc(10, 12)`;
///
@xGridCalc: ~`xGridCalc = function(colNumber, totalColumns) {
  calc = colNumber / totalColumns;
  return calc+"%";
}`;