.round_corners_nested
{
  background-color   : #eee;
  border             : 2px solid #bbb;
  border-radius      : 20px;
  box-sizing         : border-box;
  display            : inline-block; /* shrink-wrap */
  margin             : 0 0 1em 0;
  padding            : 0;
  position           : relative;
}
.round_corners_nested .round_corners_nested_title
{
  border-bottom      : 1px solid #bbb;
  box-sizing         : border-box;
  color              : #000;
  font-family        : "Trebuchet MS",Arial;
  font-size          : 11pt;
  font-weight        : bold;
  min-height         : 18px;
  padding            : 0 10px;
  position           : relative;
  text-align         : center;

  border-top-left-radius : 20px;
  border-top-right-radius: 20px;
}
.round_corners_nested .round_corners_nested_content
{
  min-height         : 1em;
  padding            : 15px 20px;
  position           : relative;
}