.grid_1 {
  width: 40px; }

.grid_2 {
  width: 100px; }

.grid_3 {
  width: 160px; }

.grid_4 {
  width: 220px; }

.grid_5 {
  width: 280px; }

.grid_6 {
  width: 340px; }

.grid_7 {
  width: 400px; }

.grid_8 {
  width: 460px; }

.grid_9 {
  width: 520px; }

.grid_10 {
  width: 580px; }

.grid_11 {
  width: 640px; }

.column {
  margin: 0 10px;
  overflow: hidden;
  float: left;
  display: inline; }

.row {
  width: 660px;
  margin: 0 auto;
  overflow: hidden; }
  .row .row {
    margin: 0 -10px;
    width: auto;
    display: inline-block; }