CSS hack mark

除IE6浏览器的通用方法

.ie6fixedTL{position:fixed;left:0;top:0} 
.ie6fixedBR{position:fixed;right:0;bottom:0} 

IE6浏览器的特有方法

html .ie6fixedTL{
  position:absolute;
  left:expression(eval(document.documentElement.scrollLeft));
  top:expression(eval(document.documentElement.scrollTop))
} 

html .ie6fixedBR{
  position:absolute;
  left:expression(eval(document.documentElement.scrollLeft+document.documentElement.clientWidth-this.offsetWidth)-(parseInt(this.currentStyle.marginLeft,10)0)-(parseInt(this.currentStyle.marginRight,10)0));
  top:expression(eval(document.documentElement.scrollTop+document.documentElement.clientHeight-this.offsetHeight-(parseInt(this.currentStyle.marginTop,10)0)-(parseInt(this.currentStyle.marginBottom,10)0)))
}