html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background-color: #0c2e4d;
}
body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  box-sizing: border-box;
}
a {
  display: block;
  max-width: 1200px;
  width: 100%;
  line-height: 0;
}
img {
  width: 100%;
  height: auto;
  display: block;
}