#MainContent {
  margin: 0;
  float: left;
  width: 580px;
  /*border: 1px solid green;*/
  font-size: 0.8em;
  padding-bottom: 10px;
}

#RightContent {
  width: 208px;
  float: right;
  /*border: 1px solid blue;*/
  font-size: 0.8em;
}