Grid docs

Usage

Columns

.grid_itm-12
.grid_itm-6
.grid_itm-6
.grid_itm-5
.grid_itm-7
.grid_itm-4
.grid_itm-8
.grid_itm-3
.grid_itm-9
.grid_itm-2
.grid_itm-10
.grid_itm-1
.grid_itm-11