.build_ctn_box_big{
  background-color: #fff;
  margin-top: 20px;
  height: 100%;
  padding:180px 15%;
  overflow: hidden;
}
.build_left_box{
  float: left;
  width: 40%;
}
.build_right_box{
  float: left;
  width: 40%;
  margin-left: 10%;

}
.build_right_box > h3{
  font-size: 42px;
  color: #ec7b71;
  margin-top: 84px;

}
.build_right_box > h6{
  font-size: 16px;
  color: #666666;
  margin-top: 20px;
}
.build_right_box > p{
  font-size: 14px;
  color: #666666;
  margin-top: 25px;
  line-height: 1.6;
}

@media (min-width: 992px) and (max-width: 1500px) {
  .build_right_box > h3{
    margin-top: 30px;
  }
  .build_right_box > h3{
    font-size: 30px;
  }
  .build_right_box{
    width: 56%;
    margin-left: 4%;
  }
}
@media (min-width: 768px) and (max-width: 992px) {
  .build_right_box > h3{
    margin-top: 30px;
  }
  .build_right_box > h3{
    font-size: 30px;
  }
  .build_right_box{
    width: 56%;
    margin-left: 4%;
  }
}
@media only screen and (max-width: 768px) { 
  .build_ctn_box_big{
    padding: 50px 15px 100px 15px;
    margin-top: 0;
  }
  .build_left_box{
    float: none;
    width: 56%;
    margin: auto;
  }
  .build_right_box{
    float: left;
    width: 100%;
    margin-left: 0;
  }
  .build_right_box > h3{
    font-size: 22px;
    margin-top: 15px;
    font-weight: bold;
    text-align: center;
  }
  .build_right_box > h6{
    text-align: center;
    margin-top: 10px;
    font-size: 14px;
  }
  .build_right_box > p{
    text-align: center;
    margin-top: 10px;
  }
}