html {
  background: black;
  color: white;
  font-family: sans-serif;
  height: 100%;
}

body {
  height: 100%;
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  text-align: justify;
}

main {
  flex-grow: 1;
  margin: auto;
}

img {
  width: 720px;
}

.right {
  text-align: right;
}

a {
  color: white;
}

@media (max-width: 752px) {
  body {
    margin: 0 1em;
    width: calc(100% - 2em);
  }

  img {
    width: 100%;
  }
}