body {
  min-width:1280px;
}

#body {
  min-height: 560px;
}

img.diaporama {
  position: absolute;
  display: none;
}

#diaporama {
  position: absolute;
  left: 50%;
  margin-left: -334px;
  margin-top: 25px;
  height: 450px;
  width: 668px;
}

#left_button {
  position: absolute;
  top: 190px;
  margin-left: 10px;
}

#right_button {
  position: absolute;
  top: 190px;
  right: 0;
}