.row:before, .row:after {
    content: "";
    display: table;
    line-height: 0;
}
.row:after {
    clear: both;
}
.row {
    margin-left: -20px;
}
.span2 {
    width: 192px;
}
[class*="span"] {
    float: left;
    margin-left: 20px;
}
.span8 {
    width: 780px;
}