.hero {
  /*background: linear-gradient(rgba(0,0,0,.6), rgba(0,0,0,.6)), */
  background: linear-gradient(rgba(11,31,58,.85), rgba(11,31,58,.85)),
  url('https://images.unsplash.com/photo-1557838923-2985c318be48') center/cover;
  color: #fff;
  padding: 120px 20px;
}