.container {
  width: 835px;
  margin: 0 auto;
}
div.span-1, div.span-2, div.span-3, div.span-4, div.span-5, div.span-6, div.span-7, div.span-8, div.span-9, div.span-10, div.span-11, div.span-12, div.span-13, div.span-14, div.span-15, div.span-16, div.span-17, div.span-18, div.span-19, div.span-20, div.span-21, div.span-22, div.span-23, div.span-24, div.span-25, div.span-26, div.span-27, div.span-28, div.span-29, div.span-30, div.span-31, div.span-32, div.span-33, div.span-34, div.span-35, div.span-36, div.span-37, div.span-38, div.span-39, div.span-40 {float:left;margin-right: 5px;}
div.last { margin-right: 0; }
.span-1  { width: 16px;}
.span-2  { width: 37px;}
.span-3  { width: 58px;}
.span-4  { width: 79px;}
.span-5  { width: 100px;}
.span-6  { width: 121px;}
.span-7  { width: 142px;}
.span-8  { width: 163px;}
.span-9  { width: 184px;}
.span-10 { width: 205px;}
.span-11 { width: 226px;}
.span-12 { width: 247px;}
.span-13 { width: 268px;}
.span-14 { width: 289px;}
.span-15 { width: 310px;}
.span-16 { width: 331px;}
.span-17 { width: 352px;}
.span-18 { width: 373px;}
.span-19 { width: 394px;}
.span-20 { width: 415px;}
.span-21 { width: 436px;}
.span-22 { width: 457px;}
.span-23 { width: 478px;}
.span-24 { width: 499px;}
.span-25 { width: 520px;}
.span-26 { width: 541px;}
.span-27 { width: 562px;}
.span-28 { width: 583px;}
.span-29 { width: 604px;}
.span-30 { width: 625px;}
.span-31 { width: 646px;}
.span-32 { width: 667px;}
.span-33 { width: 688px;}
.span-34 { width: 709px;}
.span-35 { width: 730px;}
.span-36 { width: 751px;}
.span-37 { width: 772px;}
.span-38 { width: 793px;}
.span-39 { width: 814px;}
.span-40, div.span-40 { width: 835px; margin: 0; }

.append-1  { padding-right: 21px;}
.append-2  { padding-right: 42px;}
.append-3  { padding-right: 63px;}
.append-4  { padding-right: 84px;}
.append-5  { padding-right: 105px;}
.append-6  { padding-right: 126px;}
.append-7  { padding-right: 147px;}
.append-8  { padding-right: 168px;}
.append-9  { padding-right: 189px;}
.append-10 { padding-right: 210px;}
.append-11 { padding-right: 231px;}
.append-12 { padding-right: 252px;}
.append-13 { padding-right: 273px;}
.append-14 { padding-right: 294px;}
.append-15 { padding-right: 315px;}
.append-16 { padding-right: 336px;}
.append-17 { padding-right: 357px;}
.append-18 { padding-right: 378px;}
.append-19 { padding-right: 399px;}
.append-20 { padding-right: 420px;}
.append-21 { padding-right: 441px;}
.append-22 { padding-right: 462px;}
.append-23 { padding-right: 483px;}
.append-24 { padding-right: 504px;}
.append-25 { padding-right: 525px;}
.append-26 { padding-right: 546px;}
.append-27 { padding-right: 567px;}
.append-28 { padding-right: 588px;}
.append-29 { padding-right: 609px;}
.append-30 { padding-right: 630px;}
.append-31 { padding-right: 651px;}
.append-32 { padding-right: 672px;}
.append-33 { padding-right: 693px;}
.append-34 { padding-right: 714px;}
.append-35 { padding-right: 735px;}
.append-36 { padding-right: 756px;}
.append-37 { padding-right: 777px;}
.append-38 { padding-right: 798px;}
.append-39 { padding-right: 819px;}


/* Add these to a column to prepend empty cols. */
.prepend-1  { padding-left: 21px;}
.prepend-2  { padding-left: 42px;}
.prepend-3  { padding-left: 63px;}
.prepend-4  { padding-left: 84px;}
.prepend-5  { padding-left: 105px;}
.prepend-6  { padding-left: 126px;}
.prepend-7  { padding-left: 147px;}
.prepend-8  { padding-left: 168px;}
.prepend-9  { padding-left: 189px;}
.prepend-10 { padding-left: 210px;}
.prepend-11 { padding-left: 231px;}
.prepend-12 { padding-left: 252px;}
.prepend-13 { padding-left: 273px;}
.prepend-14 { padding-left: 294px;}
.prepend-15 { padding-left: 315px;}
.prepend-16 { padding-left: 336px;}
.prepend-17 { padding-left: 357px;}
.prepend-18 { padding-left: 378px;}
.prepend-19 { padding-left: 399px;}
.prepend-20 { padding-left: 420px;}
.prepend-21 { padding-left: 441px;}
.prepend-22 { padding-left: 462px;}
.prepend-23 { padding-left: 483px;}
.prepend-24 { padding-left: 504px;}
.prepend-25 { padding-left: 525px;}
.prepend-26 { padding-left: 546px;}
.prepend-27 { padding-left: 567px;}
.prepend-28 { padding-left: 588px;}
.prepend-29 { padding-left: 609px;}
.prepend-30 { padding-left: 630px;}
.prepend-31 { padding-left: 651px;}
.prepend-32 { padding-left: 672px;}
.prepend-33 { padding-left: 693px;}
.prepend-34 { padding-left: 714px;}
.prepend-35 { padding-left: 735px;}
.prepend-36 { padding-left: 756px;}
.prepend-37 { padding-left: 777px;}
.prepend-38 { padding-left: 798px;}
.prepend-39 { padding-left: 819px;}