div.container {
  padding: 50px;
  border: solid #afafb0;
  border-width: 1px 0 0 1px;
  background: white url(images/cross-section.png) left top repeat;
}

div#box01 {
  background-color: #c3d825;
}

div#box02 {
  background-color: #f08300;
}

div#box03 {
  background-color: #2792c3;
}

div#box04 {
  background-color: #9ea1a3;
}