.wp_codebox{
  background: #000000;
  border-left:solid 3px #6ce26c;
  border-top:dashed 1px #bbbbbb;
  border-right:dashed 1px #bbbbbb;
  border-bottom:dashed 1px #bbbbbb;    
  padding: 5px;
  margin: 0 5px 0 5px;
  font-family: verdana,helvetica, "微软雅黑" , arial, "宋体";
  font-size:14px;
}