div#body {
  margin: 1px auto;
  width: 900px; 
  height: 600px; 
  text-align: left; 
  position: relative;
  border: 1px solid #ff0000;
  background-color: #fff;
}
div#text {
  overflow: auto;
  height: 370px;
  padding-right: 200px;
  padding-top: 15px;
  padding-bottom: 15px;
 }
div#Nav {
  position: absolute;
  top: 200px;
  width: 180px;
  height: 380px;
  background-color: #ACD2E9;
  border-right: 1px solid #0000ff;
  padding-top: 20px;
}