rows[i].classList.replace(
"col-"+size_cls[0]+"-"+this.colModel.config[col_index][size_cls[0]],
"col-"+size_cls[0]+"-"+size_cls[1]
rows[i].classList.replace(
"col-"+size_cls[0]+"-"+this.colModel.config[col_index][size_cls[0]],
"col-"+size_cls[0]+"-"+size_cls[1]