.mainbg {background:url(../images_demo/main.png) no-repeat;}


#main {margin:0px auto;width:962px;}
*{ padding:0px; margin:0px;}
*html{background-image:url(about:blank);background-attachment:fixed;}/*解决IE6下滚动抖动的问题*/
#tbox{width:50px; height:160px; float:right; position:fixed;
_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)));
_margin-bottom:10px;
}/*解决IE6下不兼容 position:fixed 的问题*/
a.a1 {background-position:-218px -106px;width:50px;height:98px;display:block;position:absolute;bottom:220px; cursor:pointer}
a:hover.a1 {background-position:-268px -106px;}
a.gotop {DISPLAY:block; background-position:-218px -205px;width:50px;height:50px;position:absolute; bottom:100px; display:none; cursor:pointer}
a:hover.gotop {background-position:-268px -205px;}
a.gotop2 {DISPLAY:block; background-position:-218px -205px;width:50px;height:50px;position:absolute; bottom:100px; display:none; cursor:pointer}
a:hover.gotop2 {background-position:-268px -205px;}
a.b1 {width:50px;height:50px;background-position:-318px -106px;display:block;position:absolute;top:-110px;}
a:hover.b1 {background-position:-368px -106px;}
a.c1 {width:50px;height:50px;background-position:-318px -157px;display:block;position:absolute;top:-50px;}
a:hover.c1 {background-position:-368px -157px;}
.uuu {float:left;margin-top:7px;margin-right:5px;*margin-top:2px;display:inline;}


#tbox2{width:123px; height:300px; float:left; position:fixed;
_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)));
_margin-bottom:10px;
}/*解决IE6下不兼容 position:fixed 的问题*/
a.d1 {width:123px;height:126px;background-position:-20px -336px;display:block;position:absolute;top:10px;}
a:hover.d1 {background-position:-180px -336px;}
a.e1 {width:123px;height:140px;background-position:-20px -478px;display:block;position:absolute;top:146px;}
a:hover.e1 {background-position:-180px -478px;}