#billboardContainer{
  width: 500px;
  height: 394px;
  background-position: left top;
  background-repeat: no-repeat;
  background-size: 500px auto;
  overflow: hidden;
  position: relative;
  box-shadow: 0 0 20px #000;
  margin: 0 auto;
}
.section{
  height: 100%;
  float: left;
  background-repeat: no-repeat;
  background-size: 500px auto;
  position: absolute;
}