body {
  background: #0B2CB0;
  color: #E3F1FF;
}

a {
  text-decoration: none;
  color: inherit;
}

.markdown a:hover {
  text-decoration: underline;
  text-decoration-color: #3C62F9;
}

.markdown,
footer {
  max-width: 800px;
  margin: 2rem auto;
  padding: 0 1rem;
}

footer {
  display: flex;
  justify-content: center;
}

footer > a > img {
  width: 3em;
  height: 3em;
  padding: .6em;
  transition: transform .3s ease-in-out;
}

footer > a > img:hover {
  transform: scale(1.1);
}