*{ margin:0; padding:0; }
img{ border:0;}
.box{width:805px; height:auto; margin:0 auto;}
.xuekan{ width:134px; height:765px; float:left;}
.clear{ clear:both;}
.xinwen{ width:509px; height:765px; float:left;}
.gongg{ width:158px; height:765px; float:left;}