.about section{
  margin-right: 25px;
  margin-left: 25px;
}
.about img{
  max-width: 100%;
}
.child_main h2{
  background: url('../img/about/about_back.jpg') center;
  background-size: cover;
}
.about section article{
  width: 50%;
  display: inline-block;
  float: left;
  text-align: center;
}
.about section h2{
  margin: 0 auto;
  max-width: 400px;
  font-weight: bolder;
  font-size: 28px;
  text-align: left;
  margin-top: 10px;
  margin-bottom: 10px;
}
.exl{
  font-size: 36px!important;
  text-align: center!important;
  max-width: 100%!important;
}
.about section article p{
  margin: 0 auto;
  max-width: 400px;
  font-size: 16px;
  text-align: left;
}
.about section .btn_wrap{
  width: 100%;
  max-width: 100%;
  float: none;
  text-align: right;
}
@media screen and (max-width:480px){
.exl{
    font-size: 24px!important;
    text-align: center;
  }
  .about section article{
    width: 100%;
    display: block;
    float: none;
  }
  .about section h2{
    max-width: 100%;
    font-size: 20px;
  }
  .about section article p{
    max-width: 100%;
    font-size: 14px;
  }