#qrcode-demo {
  width: 100%;
  max-width: 720px;
  margin: 3rem 0;
}

.main-text {
  font-weight: 400;
  font-size: 1.5rem;
  line-height: 170%;
  color: #666;
}

select,
select *,
#alphabet-input,
#alphabet-submit {
  font-size: 1.2rem;
}

#font-select {
  padding: 0.25rem 1rem;
}