* {
  box-sizing: inherit;
}

html {
  font-size: 62.5%;
}

body {
  font-size: 1.6rem;
  box-sizing: border-box;
  font-family: "iCiel Helvetica Bold";
}

main {
  display: flex;
  justify-content: center;
  align-items: center;
  background: #000;
}