This text will be green if the rule has been applied.
/*/*//*/
#testElement {
color: #00cc00; /* */
}
/* */
Standards-compliant browsers see the contents of this hack as a comment and will not apply those declarations (so the text in the example block should be red in compliant browsers).
This hack can also be used to hide single or multiple declarations within one rule (as opposed to whole rules as shown in the example).