.btn--orange,
h2 {
  padding: 0.5rem 2rem;
  border-bottom: 3px solid #008080;
}

h3 {
  padding: 0.5rem 2rem;
  margin:2rem 0 0 0;
  border-left: 10px solid #008080;
  background: #F0F7F3;
}

h4:first-letter {
  font-size: 130%;
  color: #006400;
}

h5 {
  background: linear-gradient(transparent 70%, #afeeee 70%);
}