body{ margin:0px; padding:0px;}
img{ border:0px;}

a {
    text-decoration: none;
}
.main_body{ background: repeat-x; width:100%; height:auto;}

.main_dh{ width:1003px; margin:auto; height:auto; overflow:hidden;}
.main_main{ width:983px; margin:auto; padding-left:10px;padding-right:10px;height:auto; overflow:hidden;background-color: #ffffff;}
.mian_left{ float:left; width:230px;overflow:hidden;}
.mian_right{ float:right; width:744px;overflow:hidden;}