head+body
("Head Adjacent Sibling Body") CSS FilterIf the background color of this paragraph is green (a darker green than this page's background) then the hack was applied.
p.test {
background-color: #f66;
color: #000;
}
head+body p.test {
color: #000;
background-color: #6f6;
}
Note: IE4.0/Win and IE5.0/Win will apply this if there is a space on the left side of the adjacent sibling selector (+).