no, like below,but it's not working any other approach?/* maximum amount of grid cells to be provided */@max_col: 12;/* default breakpoint */.aem-Grid { .generate-grid(default, @max_col);}/* phone breakpoint */@media(max-width: 767px) { @max_col: 8; .aem-Grid { .generate-grid(phone, @max_col);...