@charset "UTF-8";
BODY{ margin:0; padding:0; 
}
DL,DD,DT,UL,LI，img,h1,h2,h3,h4,h5,h6{ margin:0; padding:0; list-style-type:none;}
br{margin:0; padding:0;}
img{border:none;}
.top{width:100%; overflow:hidden; margin:0 auto 0 auto;}
.topNav,.content{width:973px; overflow:hidden; margin:0 auto;}
.content{ width:1040px; padding-bottom:20px; }
.left{ width:100%; overflow:hidden; float:left}
.left dd{ width:50%; float:left; }
.topNav form{padding:0px; margin:0; }
.right{ float:right; width:324px;}
.clear{clear:both; overflow:hidden; height:0px; }
.topby{ height:130px; width:100%; background:url(../images/by-atop.jpg) repeat-x;}
.bottomby-a{ height:85px; width:100%;background:url(../images/by-abottom.jpg) repeat-x; margin-top:50px;}