How can you flip website upside down in IE ? (for the April 1st)

Question

We are making April 1st prank in our office, and wanted to flip our corporate website upside down for several hours tomorrow :)

My patch works everywhere but not in IE..

Answer 1

A slightly simpler version for IE (no matrix stuff):

body {
  filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=2);
}