#page {
  min-height: 100vh;
  margin-top: 0;
}

#content {
  min-height: 100vh;
  padding-top: 1em;
  padding-bottom: 1em;
}

article {
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

article img {
  display: block;
  margin: 1.5em auto;
  opacity: 0.85;
  filter: grayscale(55%) brightness(1.12);
}