@media (min-width: 769px) {
.main-wrapper{
   background: url(../../Images/PTS_back.png) no-repeat;
   background-size:  cover;
   background-position: right center;
   height: 100%;
    margin:0px;
    min-height:100%;
}
}

@media (max-width: 768px) {
    .main-wrapper{
   background-color: #b8dcf4;
   background-size:  cover;
   background-position: right center;
    }

    .img-wrapper{
     background: none !important;
    height:100%;
  }
}