* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #fff;
  color: #111;
}

main {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

h1 {
  font-size: 2.5rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}