• 经验
.all-IE{property:value9;}:root .IE-9{property:value /;}.gte-IE-8{property:value ;}.lte-IE-7{*property:value;}.IE-7{+property:value;}.IE-6{_property:value;}.not-IE{property//:value;}@-moz-document url-prefix() { .firefox{property:value;} }@media all and (-webkit-min-device-pixel-ratio:0) { .webkit{property:value;} }@media all and (-webkit-min-device-pixel-ratio:10000),not all and (-webkit-min-device-pixel-ratio:0) { .opera{property:value;} }@media screen and (max-device-width: 480px) { .iphone-or-mobile-s-webkit{property:value;} }