body {
  display: flex;
  justify-content: center;
  align-items: center;

  height: 100vh;
  width: 100vw;

  margin: 0;
  padding: 0;

  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
}
.container {
  width: min-content;

  padding: 1.5rem;

  border: 2px solid #777;
  border-radius: 1rem;
}
.container p,
.container h2 {
  text-align: center;
}
.container h2 {
  margin-bottom: 0rem;
}
.container p {
  margin-top: 0.2rem;
  color: #777;
}
.container p span {
  color: black;
}
.container .codes {
  display: flex;
  margin: 1.5rem 0;
}
.container .codes .code {
  width: 2rem;

  margin: 0 0.5rem;

  font-size: 2rem;
  text-align: center;
  border: 1px solid #777;
  border-radius: 0.5rem;
}
.container .codes .code:valid {
  border-color: #18a058;
}

.container .info {
  display: block;
  background-color: #ddd;
  padding: 0.5rem;
  border-radius: 0.5rem;
  text-align: center;
}