[css layout][19]Liquid, three columns, hybrid widths

1. left , left, left

#wrapper {
  float: left;
  width: 100%;
}
#content {
  margin: 0 33% 0 200px;
}
#navigation {
  float: left;
  width: 200px;
  margin-left: -100%;
}
#extra {
  float: left;
  width: 33%;
  margin-left: -33%;
}
#footer {
  clear: both;
}

2.right, right, right

#wrapper {
  float: right;
  width: 100%;
}
#content {
  margin: 0 33% 0 200px;
}
#navigation {
  float: right;
  width: 200px;
  margin-right: -200px;
}
#extra {
  float: right;
  width: 33%;
  margin-right: -100%;
}
#footer {
  clear: both;
}