@-moz-document url-prefix() { .selector { property: value; }} 支持所有Gecko内核的浏览器 (包括Firefox)
*>.selector { property: value; } @media screen and (-webkit-min-device-pixel-ratio: 0) { Selector { property: value; }} html:first-child>b\ody Selector {property:value;} IE 浏览器针对不同的版本有不同个Hack方式。
:root Selector {property: value\9;} Selector {property: value\9;} Selector {property: value/;}或：@media \0screen { Selector {property: value;}} Selector {property: value\0;} *+html Selector{property:value;}或：*:first-child+html Selector {property:value;} Selector {*property: value;} Selector { _property: value;}或者： *html Selector { property: value;}