#centereddiv {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.footer-dark {
  padding: 50px 0;
  color: #f0f9ff;
  background-color: #282d32;
}

a:focus, a:hover {
  color: #c30f15;
  font-weight: bold;
  text-decoration: underline;
}