*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

html, body{
  width: 100%;
  height: 100%;
}

#main{
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #222;
}

h1 {
  color: #555;
  font-size: 10rem;
  font-weight: 400;
  user-select: none;
}