*{
  margin: 0;
  padding: 0;
}


img{
  height: 100vh;
  width: 100%;
}


@media(max-width:400px){
  img{
     display: none;
}
  .bg{
    background-image: url("../photos/cover-mbl.jpeg"); no-repeat center;
    padding: 40px;
    background-position: center center;
    height: 100vh;
    background-size: cover;

  }
}