IE8 CSS Hack

I just discovered a CSS hack that applies to IE6, 7 and 8. It is basically just \9 right after the property declaration, but before the closing semicolon.

For example:

div {
    -ms-filter: "progid:DXImageTransform…";
    margin-right: -2px\9;
}

Plucked from a more comprehensive list of hacks at paulirish.com

This is starting to get a little out of control with IE6, 7, 8 and 9 on the horizon… time to look into better ideas.