Default paragraphs in this page have yellow background. In any of the following test cases a blue background is set with a special (hack) rule. When the background is blue, the hack is applied.
Note: "All" == IE5+/Win, Op6+, Moz, IE5/Mac, Saf
IE5/Mac only
/*\*//*/ selector { property: value; } /**/
All except IE5/Mac
/*\*/ selector { property: value; } /**/
IE6- only
/*\*/ * html selector { property: value; } /**/
IE5.5- only
selector { property: value; p\roperty: normal-value; }
IE7 standard only
*:first-child+html selector { property: value; }
All except IE6-
html>body selector { property: value; }
IE6+ quirks and IE5 (= all IE/Win quirks) only
* html selector { property /**/: value; }
All except IE6 standards
selector { property /**/: value; }
All except IE5.0
selector { property/**/: value; }
All except IE5.5
selector { property: /**/value; }
Op < 9.5 only
@media all and (min-width: 0px) { html:first-child selector { property: value; } }
Safari 3 only
selector:not(:root:root) { property: value; }
Safari only
@media all and (-webkit-min-device-pixel-ratio: 0) { selector { property: value; } }
Gecko (1.8+) only
@-moz-document url-prefix() { selector { property: value; } }