.code {
  font-size: 50px;
  padding-left: 70px;
}

.failure {
  color: #d9534f;
}

.success {
  color: #5cb85c;
}

.form-inline {
  margin-bottom: 10px;
}

.message {
  font-weight: bold;
}

div.ex1 {
  width: 400px;
  margin: auto;
  border: 3px solid #73AD21;
   text-align: center;
  border: 3px solid black;
}