#main{
  width: 400px;
  max-width: 100%;
  margin: 1rem auto;
}
.pass-msg {
  text-align: center;
  font-size: 20px;
  font-weight: bold;
}
.pass-input {
  font-size: 16px;
}
.pass-submit {
  width: 100%;
  margin: 10px 0;
}
.pass-err {
  color: #ff0000;
}