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/* IE6 以下 */
* html .selector {}
.selector { _color: #FFF; }

/* IE7 */
*:first-child+html .selector {}
*+html .selector {}

/* IE6, 7 */
.selector { /color: #FFF; }

/* IE8 */
.selector { color: #FFF\9; }

/* IE7, 8 */
.selector { color/*\**/: #FFF\9; }

/* except IE6 */
.selector { color/**/: #FFF; }

/* except IE6, 7 */
html>/**/body .selector { color: #FFF; }

/* except IE6 - 8 */
:root *> .selector { color: #FFF; }