.esh-header {
    background-color: #00528e;
    height: 4rem;
    color: white;
}

.esh-header-back {
  color: black
  line-height: 4rem;
  text-decoration: none;
  text-transform: uppercase;
  transition: color 0.35s;
  
}

.esh-header-back:hover {
  color: blue;
  transition: color 0.35s;
}