/* full-screen dark background plus centered purple heading */
body, html {
  margin: 0;
  padding: 0;
  height: 100%;
  background-color: #121212;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: sans-serif;
}

.wrapper h1 {
  color: #9b59b6;
  font-size: 3rem;
  text-transform: uppercase;
}