html, body {
  height: 100%;
}
body {
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: sans-serif;
  font-size: 1.6rem;
}
#tweet {
  background-color: #1da1f2;
  padding: 0.8rem;
  border-radius: 9999px;
  font-size: 1.2rem;
  font-weight: bold;
  display: inline-block;
  text-decoration: none;
  color: #fff;
  box-sizing: border-box;
  text-align: center;
  width: 100%;
  margin-top: 2rem;
}
#holidays {
  font-size: 7rem;
  font-weight: bold;
  text-align: center;
}
#holidays + div {
  text-align: right;
}
#years {
  text-align: center;
  margin-top: 1.5rem;
}