#main_cnt {
    height: auto;
}
.page_box{
	background-color: #eee;
	padding: 100px 15%;
	min-height: 450px;
}
.page_box .sec_title{
	font-size: 36px;
	font-weight: bold;
    color: #1b66a2;
}

.page_box .content{
	margin-top: 20px;
	line-height: 25px;
  text-align: justify;
 }
 @media only screen and (min-width: 50px) and (max-width: 1300px) {
   .page_box {
    padding: 50px 5%;
  }
}

/*   mobile */
@media only screen and (min-width: 50px) and (max-width: 750px) {
  .page_box {
      padding: 50px 15px;
  }
  .page_box .sec_title {
     font-size: 30px;
 }
 .page_box .content {
   font-size: 14px;
   text-align: justify;
 }
}
 /* tablet vertical */
@media only screen and (min-width: 751px) and (max-width: 900px) {
  .page_box {
      padding: 50px 15px;
  }
  .page_box .sec_title {
     font-size: 30px;
 }
 .page_box .content {
   font-size: 14px;
   text-align: justify;
 }
}