IE6-IE11,Firefox/Safari/Opera/Chrome 目前最常见的是 *html *前缀只对IE6生效 *+html *+前缀只对IE7生效 @media screen\9{...}只对IE6/7生效 @media \0screen {body { background: red; }}只对IE8有效 @media \0screen\,screen\9{body { background: blue; }}只对IE6/7/8有效 @media screen\0 {body { background: green; }} 只对IE8/9/10有效 @media screen and (min-width:0\0) {body { background: gray; }} 只对IE9/10有效 @media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {body { background: orange; }} 只对IE10有效 IE6,识别_,识别*,不识别!important IE7,识别*,识别!important,不识别_ Firefox,识别!important,不识别_,不识别* “-″减号是IE6专有的hack “\9″ IE6/IE7/IE8/IE9/IE10都生效 “\0″ IE8/IE9/IE10都生效,是IE8/9/10的hack “\9\0″ 只对IE9/IE10生效,是IE9/10的hack
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