.row {
  margin-left: -20px;
  *zoom: 1;
  position: relative; }

.row:before,
.row:after {
  display: table;
  line-height: 0;
  content: ""; }

.row:after {
  clear: both; }

[class*="span"] {
  float: left;
  min-height: 1px;
  margin-left: 20px; }

.container {
  width: 940px; }

.span12 {
  width: 940px; }

.span11 {
  width: 860px; }

.span10 {
  width: 780px; }

.span9 {
  width: 700px; }

.span8 {
  width: 620px; }

.span7 {
  width: 540px; }

.span6 {
  width: 460px; }

.span5 {
  width: 380px; }

.span4 {
  width: 300px; }

.span3 {
  width: 220px; }

.span2 {
  width: 140px; }

.span1 {
  width: 60px; }

.container:before,
.container:after {
  content: "";
  display: table; }

.container:after {
  clear: both; }