body {
  margin-left: 20px;
  position: relative;
}
#header {
  width: 800px;
}
#navigation {
  border-top: 1px solid black;
  padding: 20px 0px;
}
#navigation img {
  position: relative;
  border: 0px solid white;
  margin-right: 30px;
}
#viewer {
  width: 800px;
  height: 400px;
  background-color: #f8f8f8;
}
#selectors {
  margin-top: 20px;
}
#selectors span {
  width: 120px;
  display: block;
  float: left;
  text-align: right;
}
#selectors div {
  height: 100px;
}
#selectors img.roll {
  margin-left: 10px;
  height: 67px;
  width: 20px;
}
#main_view {
  height: 400px;
  width: 800px;
  border: 0px;
}