div.jumbotron.carousel-hero {
  color: #fff;
  text-align: center;
  background-size: cover;
  background-position: center;
  padding-top: 100px;
  padding-bottom: 100px;
  margin-bottom: 0;
}

div.jumbotron.hero-nature {
  background-image: url('hero-background-nature.jpg');
}