body {
  background: #ffffff url(/images/vert-tile-blue-line.jpg) repeat-y;
  margin: 0px; border: 0px; padding: 0px;
}

.top_corner {
  background: #ffffff url(/images/corner_background.jpg) repeat-y;
  background-position: top left;
  width: 800px;
  height: 500px;
  z-index: 0;
  position: absolute;
  top: 0px;
  left: 0px;
}

.main_table {
  background: transparent;
  width: 100%;
  height: 100%;
  z-index: 1;
  position: relative;
}