.projects {
  background-image: url('../img/projects.jpg');
  height: 250px;
}

.website {
  height: 400px;
}

#intro-example {
  background-image: url('../img/header.jpg');
  height: 400px;
}

  /* Height for devices larger than 992px */
  @media (min-width: 992px) {
    #intro-example {
      height: 600px;
    }
  }