标签：
reset
body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,textarea,p,blockquote,th,td{margin:0;padding:0} table{border-collapse:collapse;border-spacing:0} fieldset,img{border:0} address,caption,cite,code,dfn,em,strong,th,var{font-style:normal;font-weight:normal} ol,ul{list-style:none} caption,th{text-align:left} h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:normal} q:before,q:after{content:‘‘} abbr,acronym{border:0;font-variant:normal} sup{vertical-align:text-top} sub{vertical-align:text-bottom} input,textarea,select{font-family:inherit;font-size:inherit;font-weight:inherit} input,textarea,select{*font-size:100%} *{font-family: "Microsoft Yahei"} a{text-decoration: none;color: #000}
clearfix
.clearfix:after{ content:"."; display:block; height:0; clear:both; visibility:hidden } .clearfix{ *+height:1%; }
css hack
| hack | 写法 | IE6(S) | IE6(Q) | IE7(S) | IE7(Q) | IE8(S) | IE8(Q) | IE9(S) | IE9(Q) | IE10(S) | IE10(Q) |
| * | *color | Y | Y | Y | Y | N | Y | N | Y | N | Y |
| + | +color | Y | Y | Y | Y | N | Y | N | Y | N | Y |
| - | -color | Y | Y | N | N | N | N | N | N | N | N |
| _ | _color | Y | Y | N | Y | N | Y | N | Y | N | N |
| # | #color | Y | Y | Y | Y | N | Y | N | Y | N | Y |
| \0 | color:red\0 | N | N | N | N | Y | N | Y | N | Y | N |
| \9\0 | color:red\9\0 | N | N | N | N | N | N | Y | N | Y | N |
| !important | color:blue !important;color:green; | N | N | Y | N | Y | N | Y | N | Y | Y |
*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有效标签：
原文地址：http://www.cnblogs.com/rizzle/p/4691833.html
