* {
  box-sizing: border-box;
}

body {
  background-color: #23c4a1;
  font-family: Arial, Helvetica, sans-serif;
  color: #fff;
  text-align: center;
  height: 100vh;
  justify-content: center;
  align-items: center;
  display: flex;
  flex-direction: column;
}

h1 {
  margin: 0;
}