#main_wrap{
  overflow:hidden;
  margin-bottom:50px;
}

#main_top{
  overflow:hidden;
  margin-bottom:20px;
}
#main_top li{
  overflow:hidden;
  margin-bottom:10px;
}
#main_banner ul{
  width:340px;
  float:left;
}

#main_banner li{
  overflow:hidden;
  margin-bottom:10px;
  list-style:none;
}

#main_news{
  width:330px;
  float:right;
}
#main_news h3{
  margin-bottom:5px;
}