.masthead {
  height: 100vh;
  min-height: 500px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.app-container {
  background: #eee;
  color: #666;
}

.text-red {
  color: darkred;
}

.text-green {
  color: darkgreen;
}