@media screen and (max-width: 480px) {
  .hero, .background {
    height: 250px !important;
  }
  .hero .background div {
    background-attachment: inherit;
  }
  .hero .background .mobilePicture {
    background-image: url("https://dqzrr9k4bjpzk.cloudfront.net/startersite/images/16755089/1554269702004.jpg") !important;
  }
}