body {
  background: 100% 25% url(placeholder.jpg) no-repeat;
  background-size: max(50%, 55rem);
}
nav a {
  text-decoration: none;
  text-transform: none;
}
nav a:hover {
  text-decoration: underline 6px;
}
nav {
  font-family: initial;
  font-size: 3rem;
  font-weight: normal;
  line-height: 1;
  max-width: 37.5rem;
  text-align: justify;
}
header {
  margin: auto 0;
}