.container {
    width: 950px;
    margin: 0 auto;
}
.row {
    overflow: auto;
    margin-bottom: 10px;
}
.column {
    float: left;
    margin-left: 10px;
}
.column:first-child {
    margin-left: 0;
}
.span-1 {width: 30px;}
.span-2 {width: 70px;}
.span-3 {width: 110px;}
.span-4 {width: 150px;}
.span-5 {width: 190px;}
.span-6 {width: 230px;}
.span-7 {width: 270px;}
.span-8 {width: 310px;}
.span-9 {width: 350px;}
.span-10 {width: 390px;}
.span-11 {width: 430px;}
.span-12 {width: 470px;}
.span-13 {width: 510px;}
.span-14 {width: 550px;}
.span-15 {width: 590px;}
.span-16 {width: 630px;}
.span-17 {width: 670px;}
.span-18 {width: 710px;}
.span-19 {width: 750px;}
.span-20 {width: 790px;}
.span-21 {width: 830px;}
.span-22 {width: 870px;}
.span-23 {width: 910px;}
.span-24 { width:950px;}