Just replace your class or Id with #hash Don't delete the comments
#hack{
color:red; /* All browsers */
color:red !important;/* All browsers but IE6 */
_color:red; /* Only works in IE6 */
*color:red; /* IE6, IE7 */
+color:red;/* Only works in IE7*/
*+color:red; /* Only works in IE7 */
color:red\9; /* IE6, IE7, IE8, IE9 */
color:red\0; /* IE8, IE9 */
color:red\9\0;/*Only works in IE9*/
}