IE6 css fixed

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.fixed-top{position:fixed;bottom:auto;top:0px;} .fixed-bottom{position:fixed;bottom:0px;top:auto;} .fixed-left{position:fixed;right:auto;left:0px;} .fixed-right{position:fixed;right:0px;left:auto;} /* IE6 */ * html,* html body{background-image:url(about:blank);background-attachment:fixed;} * html .fixed-top{position:absolute;bottom:auto;top:expression(eval(document.documentElement.scrollTop));} * html .fixed-right{position:absolute;right:auto;left:expression(eval(document.documentElement.scrollLeft+document.documentElement.clientWidth-this.offsetWidth)-(parseInt(this.currentStyle.marginLeft,10)||0)-(parseInt(this.currentStyle.marginRight,10)||0));} * html .fixed-bottom{position:absolute;bottom:auto;top:expression(eval(document.documentElement.scrollTop+document.documentElement.clientHeight-this.offsetHeight-(parseInt(this.currentStyle.marginTop,10)||0)-(parseInt(this.currentStyle.marginBottom,10)||0)));} * html .fixed-left{position:absolute;right:auto;left:expression(eval(document.documentElement.scrollLeft));}

备注一下，经常想用的时候都得查！！！