html,
body {
  margin: 0;
  background: white;
  font-family: sans-serif;
  font-size: 10px;
  text-align: center;
}

h1 {
  margin: 4rem 0;
  text-transform: uppercase;
}

h2 {
  padding: 0 0 1em 0;
  margin: 0;
}

.container {
  font-size: 1.6rem;
  max-width: 800px;
  min-height: 100vh;
  margin: auto;
  background: white;
  padding: 1rem 1rem 20rem 1rem;
}

.link-group {
  padding: 3em 0;
  border-top: 3px dotted cyan;
}

.big-link {
  display: block;
  text-align: center;
  text-decoration: none;
  font-size: 2em;
  color: white;
  border: 3px solid magenta;
  background: magenta;
  box-shadow: 10px 10px 0 cyan;
  padding: 2rem 1rem;
  margin: 2rem 0;
  border-radius: 10px;
}

.big-link:hover {
  color: black;
  border: 3px dotted cyan;
  background: white;
  box-shadow: 10px 10px 0 yellow;
}