/* Login */

form > div {
  margin: 1em 0;
}

form > div, form > div > *{
  text-align: center;
}

form > div > label {
  font-weight: bold;
}

form > div > input {
  width: 90%;
  max-width:40em;
}

form > div > button {
  width: 90%;
  max-width:10em;
}

div#check_number {
  padding:2em;
}

div#check_number > span {
  border: solid #333;
  padding:1em;font-size:2em;
}