body{font-family:sans-serif;margin:2rem;max-width:640px}label{display:block;margin-bottom:.75rem}input,textarea{display:block;width:100%;margin-top:.25rem;box-sizing:border-box}textarea{min-height:4rem}.error{color:#b00020}.result{border:1px solid #ccc;padding:1rem;margin-top:1rem}.badge{display:inline-block;padding:.15rem .5rem;border-radius:.25rem;background:#eee;font-size:.85rem}