grid-gutter); }
    .eleven      { width: (11*$grid-column-width - $grid-gutter); }
    .twelve      { width: (12*$grid-column-width - $grid-gutter); }
    .thirteen    { width: (13*$grid-column-width - $grid-gutter); }
    .fourteen    { width: (14*$grid-column-width - $grid-gutter); }
    .fifteen     { width: (15*$grid-column-width - $grid-gutter); }
    .sixteen     { width: (16*$grid-column-width - $grid-gutter); }
    .one-third   { width: ($grid-container-width/3) - $grid-gutter; }
    .two-thirds  {