body{
    margin: 0 0;
    overflow-x: hidden;
    overflow-y: hidden;
  background-image: url("img_girl.jpg");

  /* Full height */
  height: 100%; 

  /* Center and scale the image nicely */
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

.img-responsive{
    position: absolute;

    min-height : 100%;
    min-width : 100%;
    background-size:80% 100%;
    background-repeat:no-repeat;
    background-size: cover;

}
@media only screen and (max-width: 600px) {
    .img-responsive {
     
      min-width : 100%;
      overflow-x: hidden ;
      background-repeat:no-repeat;
      background-size: cover;
      overflow-y: hidden;
    }
  }