:root {
  --primary-colour: #222222;
  --secondary-colour: #ffffff;
  --text-colour: #444444;
}

body {
  background-color: var(--secondary-colour);
  color: var(--primary-colour);
}

main nav {
  display: flex;
  justify-content: center;
  margin-bottom: 100px;
}

main nav a {
  color: var(--text-colour);
  display: inline-block;
  border-right: solid 1px white;
  padding-right: 10px;
  margin-left: 10px;
}

main nav a:last-child {
  padding-right: 0px;
  border-right: none;
}

main nav a:hover {
  opacity: 0.75;
}

footer {
  padding: 25px;
}

footer address {
  margin-top: 25px;
}

footer a,
footer address {
  color: var(--text-colour);
  font-size: 0.75em;
}

footer a:hover {
  opacity: 0.75;
}

footer p {
  margin: 0px;
}

@media (max-width: 500px) {
  main nav {
    flex-direction: column;
  }
  main nav a {
    padding: 0;
    margin: 0;
    border: 0;
  }
}