.pack
{
  overflow: hidden;
}
.pack > .left,
.pack > .right
{
  width: 42%;
  padding: 0 3% 999em 3%;
  margin: 0 0 -999em 0;
  background-color: @sehrhell;
}
.pack > .left
{
  float: left;
}
.pack > .right
{
  float: right;
}
.single
{
  padding: 3%;
  margin: 3% 0;
  background-color: @sehrhell;
}