.corner{display:block}
.corner *{
  display:block;
  height:1px;
  overflow:hidden;
  font-size:.01em;
  background:#cccccc}
.corner1{
  margin-left:3px;
  margin-right:3px;
  padding-left:1px;
  padding-right:1px;
  border-left:1px solid #e9e9e9;
  border-right:1px solid #e9e9e9;
  background:#d8d8d8}
.corner2{
  margin-left:1px;
  margin-right:1px;
  padding-right:1px;
  padding-left:1px;
  border-left:1px solid #f9f9f9;
  border-right:1px solid #f9f9f9;
  background:#d5d5d5}
.corner3{
  margin-left:1px;
  margin-right:1px;
  border-left:1px solid #d5d5d5;
  border-right:1px solid #d5d5d5;}
.corner4{
  border-left:1px solid #e9e9e9;
  border-right:1px solid #e9e9e9}
.corner5{
  border-left:1px solid #d8d8d8;
  border-right:1px solid #d8d8d8}
.cornerfg{
  background:#cccccc}