/* medium */
@media only screen and (min-width: 600px) {

  /* define parent cell widths for 3 cell parent layout */
  .cell_1_1_3 { width: 33.3%; } /* parent cell, 1 units */
  .cell_1_2_3 { width: 66.6%; } /* parent cell, 2 units */
  .cell_1_3_3 { width: 100%; } /* parent cell, 3 units */

  /* place all parent cells in a row for 3 cell parent layout */
  .cell_1_1_3, .cell_1_2_3, .cell_1_3_3 {
    float: left;
  }

  /* define parent cell widths for 5 cell parent layout */
  .cell_1_1 { width: 20%; } /* parent cell, 1 units */
  .cell_1_2 { width: 40%; } /* parent cell, 2 units */
  .cell_1_3 { width: 60%; } /* parent cell, 3 units */
  .cell_1_4 { width: 80%; } /* parent cell, 4 units */
  .cell_1_5 { width: 100%; } /* parent cell, 5 units */

  /* place all parent cells in a row for 5 cell parent layout */
  .cell_1_1, .cell_1_2, .cell_1_3, .cell_1_4, .cell_1_5 {
    float: left;
  }

}