footer {
  font-size: 16px;
  line-height: 1.4em;
  grid-column: 2 / span 1;
  margin-top: 4rem;
  margin-bottom: 4rem;
  border-top: 1px solid var(--chorus-dark-gray);
  padding-top: 2em;
  text-align: center;
}

@media screen and (min-width: 451px) and (max-width: 1140px) {
  footer {
    grid-column: 2 / span 2;
  }
}

@media screen and (max-width: 450px) {
  footer {
    grid-column: 1 / span 4;
  }
}